Free Online Utilities & Calculators.
Zero Sign-ups. Total Privacy.

Word Counter & Character Counter (UK English Standards)

Count words, characters with/without spaces, sentences, paragraphs, and estimated reading time adhering to UK English word-count metrics.

🔠

Case Converter (UPPER, lower, Title, Camel) (UK Online Edition)

Instantly convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Duplicate Line Remover & List Sorter

Deduplicate text lists, remove repeated lines, and sort entries alphabetically or numerically with case sensitivity controls.

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Text to Slug Converter (URL Friendly) (UK Online Edition)

Convert any title or string into a clean, SEO-friendly, URL-safe slug with custom separators. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

📜

Lorem Ipsum Dummy Text Generator

Generate customised placeholder dummy text by paragraphs, sentences, or word count for web design layouts and print typesetting.

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Text Reverser & Mirror String Tool

Reverse text, flip word order, and mirror letter sequences instantly for creative styling and data manipulation.

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Line Break Remover & Text Formatting Cleaner

Clean up copied text by eliminating unwanted carriage returns, soft line wraps, extra tabs, and double spaces in one click.

Word Frequency Counter & Keyword Density Analyser

Analyse word occurrences, calculate percentage keyword density, and discover overused terms in essays, speeches, and articles.

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Text Diff Checker — Compare Text Differences in Browser

Compare two documents or code snippets side-by-side. Highlights word-by-word additions, deletions, and layout differences with total client-side privacy.

🎲

Random Text & Dummy String Generator

Generate random sentences, dummy paragraphs, and mock data strings for testing application inputs and content layouts.

WPM Reading Time & Speaking Speed Calculator

Calculate estimated reading duration and speaking presentation time based on standard UK English adult reading pace.

✨

Fancy Font & Stylised Unicode Text Generator

Transform plain text into stylish fonts, cursive scripts, and decorative Unicode symbols for social profiles, messaging, and digital publishing.

⇥

Tab to Space & Space to Tab Code Converter

Standardise code indentation by converting tab characters to spaces (2, 4, or 8 spaces) or spaces to tabs with zero latency.

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Font Detector & Font File Extractor (.ttf, .otf, .woff) (UK Online Edition)

Inspect uploaded TTF/OTF/WOFF font files: extract font family, weight, designer, glyph count, copyright, and test live rendering. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🧮 What tools are included in Calculators & Numbers (£ GBP & Metric)?

Financial growth, ISA savings, age, VAT sales tax, discount, unit conversion, and relationship compatibility calculators.

Open Tool →

Percentage Calculator (Increase, Decrease, Of) (UK Online Edition)

Calculate what is X% of Y, percentage increase/decrease, percentage difference between two numbers, and reverse percentages. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎂

Age Calculator & Exact Days Alive (UK Online Edition)

Calculate your exact age in years, months, weeks, days, hours, and minutes, plus upcoming birthday countdown. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

⚖️

BMI Calculator (Body Mass Index & Healthy Weight) (UK Online Edition)

Calculate Body Mass Index (BMI), WHO weight category, ideal weight range, and prime BMI for metric and imperial units. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎓

GPA Calculator (4.0 & Weighted Scale) (UK Online Edition)

Calculate high school and college semester/cumulative GPA on a 4.0 or 5.0 weighted and unweighted scale. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Loan EMI & Mortgage Repayment Calculator (£ GBP)

Calculate monthly repayments, total interest payable, and amortisation schedules for UK mortgages and personal bank loans.

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Tip Calculator & Bill Splitter (UK Online Edition)

Calculate restaurant tip percentage, total bill with service tax, and split amount per person evenly. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Discount & Sale Price Calculator (UK Online Edition)

Find final discounted price, amount saved, double stacked discounts (e.g. 20% + extra 10%), and sales tax. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Unit Converter (Metric & Imperial UK Standards)

Convert between metric and imperial measurements for length, weight (stones/lbs/kg), temperature, volume, and area.

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World Time Zone Converter & Meeting Planner (UK Online Edition)

Convert times across global cities (UTC, EST, PST, GMT, CET, JST) with daylight saving and interactive hour slider. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

📅

Date Difference & Days Between Dates Calculator (UK Online Edition)

Calculate the exact number of days, weeks, months, business days between two dates, or add/subtract days from a date. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

Grade Calculator & Weighted Average (UK Online Edition)

Calculate your current class grade, weighted assignment averages, and the final exam score needed to get your target grade. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Compound Interest & ISA Growth Calculator (£ GBP)

Calculate compound interest growth, regular monthly contributions, and future portfolio value in Pounds (£) over any investment horizon.

🎲

Random Number Generator (Custom Range & Unique) (UK Online Edition)

Generate single or multiple random integers and decimals within any min/max range with duplicate prevention. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

❤️

Love Compatibility Calculator & Relationship Fun Test

Fun compatibility calculator testing romantic affinity between two names using traditional numerological algorithms.

💻 What tools are included in Developer Utilities & Code Formatters (UK Standards)?

Minimise CSS/JS, format JSON/SQL, encode Base64, and generate hashes locally in browser with zero telemetry.

Open Tool →

{ }

JSON Formatter, Validator & Tree Beautifier (UK Online Edition)

Prettify, minify, validate syntax errors with line numbers, and inspect nested objects in a clean tree view. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎨

CSS Minimiser & Stylesheet Optimizer

Minimise CSS stylesheets by stripping unnecessary whitespace, comments, and redundant rules for faster web page load times.

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Base64 Encoder & Decoder (Secure Local Conversion)

Encode and decode strings, images, and binary files to Base64 format securely in your browser without transmitting data over the network.

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URL Encoder & Decoder (RFC 3986 Standards)

Encode and decode query strings, path segments, and reserved characters according to international URL standards.

🔎

Regex Tester & Regular Expression Explainer (UK Online Edition)

Test JavaScript and PCRE regular expressions in real-time with capture groups, replacement previews, and flags (g, i, m). Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🆔

UUID & GUID Generator (v4 Cryptographically Secure) (UK Online Edition)

Generate single or bulk RFC 4122 compliant version 4 UUIDs using window.crypto CSPRNG with uppercase/hyphen options. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

#️⃣

Hash Generator (MD5, SHA-256, SHA-512)

Generate cryptographic checksums and hash digests locally in your browser using the Web Crypto API.

Markdown to HTML Converter & Live Previewer (UK Online Edition)

Convert GitHub Flavored Markdown (GFM) headings, tables, code blocks, and checklists into clean HTML with one-click copy. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

⏰

Cron Expression Generator & Human Explainer (UK Online Edition)

Build cron schedule strings (minute, hour, day, month, weekday), translate expressions into plain English, and view upcoming trigger runs. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎨

Colour Picker & HEX/RGB/HSL Converter

Pick colours with an eyedropper, convert between HEX, RGB, HSL, and CMYK colour values with high-contrast previews.

HTML Entity Encoder & Decoder (Special Characters)

Encode special characters, quotes, and symbols to numeric or named HTML entities to prevent rendering glitches and XSS.

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JWT Decoder & Token Payload Inspector (JSON Web Token) (UK Online Edition)

Decode JSON Web Tokens (JWT) locally: inspect header, payload claims, expiration timestamps (exp, iat), and signature status. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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JavaScript Minimiser & Code Optimizer

Minimise JavaScript code, strip comments, shorten identifier syntax, and reduce file bundle sizes directly in your browser.

🖼️

Placeholder Image Generator (Client-Side Canvas) (UK Online Edition)

Create custom dimensions placeholder images (PNG/JPG/SVG/Data URI) with custom text, colours, and instant download. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🖼️ What tools are included in Image & File Format Converters (Local Processing)?

Convert JPG to PNG, compress PDFs, crop photos, and convert images to PDF without uploading confidential files to cloud servers.

Open Tool →

PDF Editor — Edit, Redact & Sign PDFs Locally

Modify text, annotate paragraphs, redact confidential information, and add signatures to PDF files client-side without cloud processing.

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Bulk Image Compressor & Optimiser (JPG, PNG, WebP Batch Reduce)

Compress and optimise JPG, PNG, and WebP images locally in your browser. Reduce file size without quality loss or server uploads, compliant with UK privacy laws.

📐

Image Resizer (Pixel Dimensions & Aspect Ratio) (UK Online Edition)

Resize image width and height in pixels or percentage, lock aspect ratio, and download optimised files. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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JPG to PNG Converter — 100% Client-Side Private

Convert JPG images to transparent PNG files locally in your browser. Fast, private, and fully compliant with UK GDPR with zero file uploads.

Image to Base64 & Data URI Generator (UK Online Edition)

Convert uploaded PNG, JPG, GIF, SVG, or WebP images into Base64 Data URI strings for inline HTML & CSS embeds. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

⭐

Favicon Generator & App Icon Maker

Create multi-resolution favicon packages (.ico, 32x32, 192x192) from any image directly in your browser.

📱

QR Code Generator (URL, WiFi, vCard, Text) (UK Online Edition)

Create custom QR codes for website links, WiFi network credentials, vCard contact cards, with custom foreground/background colours. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎭

Meme Generator (Custom Top & Bottom Text) (UK Online Edition)

Create funny memes using classic Impact typography, custom font outlines, uploaded pictures or popular template presets. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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PDF to Word Converter (.docx) — Private Local Conversion

Convert PDF documents into editable Microsoft Word (.docx) documents directly in your browser with layout preservation and zero data exposure.

Merge & Split PDF Utility (Local In-Browser)

Combine multiple PDF documents into one or extract specific page ranges locally in your browser with zero document uploading or cloud retention.

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PDF Compressor (100% Client-Side File Reduction)

Reduce PDF file size locally in your browser using smart compression algorithms without uploading confidential documents.

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Image Background Remover (Chroma & Alpha Thresholding) (UK Online Edition)

Remove solid white or colored backgrounds from logos, products, and graphics with magic wand tolerance and download transparent PNG. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

✂️

Image Cropper (Square 1:1, 16:9, 4:3, Circle Crop) (UK Online Edition)

Crop photos to exact aspect ratios (1:1 Instagram avatar, 16:9 widescreen, 4:3) or circular avatars with zoom & pan controls. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

Image to PDF Converter (JPG, PNG, WebP to PDF)

Combine multiple image files into a single organised PDF document locally with custom page margins and orientation.

📷

EXIF Data Viewer & Metadata Privacy Remover (UK Online Edition)

View camera model, ISO, shutter speed, focal length, date taken, GPS coordinates on map, or strip all metadata for privacy. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎨

Color Palette Extractor from Image (Dominant Hex Colors) (UK Online Edition)

Automatically extract dominant colours, harmonious palette shades, RGB/HEX codes, and CSS colour swatches from any uploaded photo. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🔤

Font Extractor, Identifier & System Font Detector (UK Online Edition)

Extract metadata, glyph tables, and CSS @font-face rules from TTF, OTF, WOFF, and WOFF2 font files, detect installed system fonts, and match fonts from image typography samples with Google Fonts. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

💰 What tools are included in Everyday Finance Calculators (£ GBP & VAT)?

Calculate compound interest, mortgage repayments, VAT sales tax, freelance day rates, and tip splits in British Pounds.

Open Tool →

💱

Currency Converter & Exchange Rates (£ GBP)

Calculate live foreign currency exchange rates across 150+ world currencies with British Pound (£) base support.

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Salary & Paycheck Calculator (Hourly to Annual & Take-Home) (UK Online Edition)

Convert hourly wage to daily, weekly, bi-weekly, monthly, and annual income with tax deductions & overtime multipliers. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🧾

Free Invoice Generator & PDF Receipt Maker (UK Online Edition)

Create professional customizable invoices: add business logo, line items, taxes, discounts, client info, and print or export as PDF instantly. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🔑

Secure Password Generator (High Entropy)

Create strong, random passwords with custom symbols, numbers, and passphrases generated strictly in device memory.

👥

Random Name Picker & Team Generator (UK Online Edition)

Pick a random winner from a list of names or automatically balance and split people into randomized, fair teams or breakout groups. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎲

Coin Flip & Dice Roller (Cryptographic Randomness)

Flip virtual coins or roll multi-sided dice using genuine browser cryptographic randomness for games, classroom exercises, and unbiased choices.

⏳

Free Countdown Timer Online & Stopwatch with Alarms

Free countdown timer, interval alarm, and digital stopwatch. Runs client-side with loud sound notifications, fullscreen display, and preset alarms.

📷

QR Code Scanner & Reader (Camera & File Upload)

Scan QR codes instantly using your device webcam or by uploading image files. Decodes URLs, Wi-Fi credentials, and contact cards safely.

Barcode Generator (Code 128, EAN-13, UPC, Code 39) (UK Online Edition)

Generate standard scannable barcodes in Code 128, EAN-13, UPC-A, Code 39, ITF formats with custom heights, colours, text, and SVG/PNG download. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🏛️

Sales & Income Tax Calculator (Custom Rates & Brackets) (UK Online Edition)

Calculate sales tax, VAT, GST, gross vs. net price, and estimated progressive income tax brackets with customizable rate percentages. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🍕

Split Bill & Group Expense Calculator (Tip & Custom Shares) (UK Online Edition)

Split restaurant checks and shared event costs evenly or by custom proportions with tip calculations and per-person breakdown. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🏖️

Retirement Savings & Pension Nest Egg Calculator (UK Online Edition)

Forecast retirement portfolio growth: calculate required monthly contributions, compounding returns, inflation adjustment, and safe withdrawal. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

⛽

Fuel Cost & Trip Gas Mileage Calculator (MPG / L/100km) (UK Online Edition)

Calculate total fuel cost for a road trip, total liters/gallons required, fuel efficiency (MPG, km/L, L/100km), and cost per passenger. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🪙

Crypto Profit & ROI Calculator (Bitcoin, Ethereum, Altcoins) (UK Online Edition)

Calculate net profit/loss, total payout, percentage return on investment (ROI), and exchange trading fees for crypto trades. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Freelance Rate Calculator (UK HMRC, IR35 & VAT Guidance)

Calculate competitive day and hourly rates for UK freelancers and contractors, factoring in National Insurance, pension contributions, VAT, and holidays.

Pomodoro Focus Timer & Work-Break Productivity Clock (UK Online Edition)

Boost deep focus with structured 25-minute work intervals, 5-minute short breaks, 15-minute long breaks, and ambient audio cues. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

Daily Habit Tracker & Routine Streak Planner

Track daily wellness routines, work habits, and build positive streaks. Automatically saved to your local browser storage for complete privacy.

Online Stopwatch with Lap Times & Millisecond Precision (UK Online Edition)

Precision digital stopwatch: start, pause, split lap records, export lap logs to CSV, and track elapsed time with keyboard shortcuts. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

Quick Scratchpad & Auto-Saving Notepad (No Sign-Up) (UK Online Edition)

Distraction-free auto-saving scratchpad in your browser: live word count, plain text / markdown modes, and one-click TXT download. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

✅

Interactive Checklist & Task List Maker

Build checkable to-do lists, packing checklists, and audit procedures with progress tracking, printing, and local storage.

📧 What tools are included in Email & File Format Tools (Offline Safe)?

Preview responsive email newsletters, test HTML signatures, inspect MBOX archives, and view CSV spreadsheets safely.

Open Tool →

📩

EML File Viewer & Online Reader (RFC 822 / MIME) (UK Online Edition)

Open and read .eml email files directly in your browser: parse sender, recipient, date, subject, rich HTML body, and preview/download attachments privately. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

✉️

Outlook MSG File Viewer & Reader (UK Online Edition)

Parse Microsoft Outlook .msg binary files in your browser: extract email headers, formatted text/HTML body, and attachments without Outlook. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🌲

XML Viewer, Tree Explorer & Formatter (UK Online Edition)

Interactive collapsible XML tree viewer: validate XML syntax, search nodes, beautify/indent, minify, and inspect attributes with zero upload. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Email Header Analyser & SPF/DKIM/DMARC Diagnostic

Paste email headers to inspect delivery hops, transit delays, SPF validation, DKIM signatures, and spam authentication scores.

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HTML Email Signature Tester & Live Previewer

Test and debug HTML email signatures in real time across Outlook, Apple Mail, and Gmail layouts without uploading private images.

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MBOX Archive Viewer & Email Reader

Inspect, search, and extract email messages from Google Takeout and Thunderbird MBOX archives directly in your browser without cloud uploads.

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Email Address Extractor & List Cleaner (UK Online Edition)

Extract all valid email addresses from messy text, documents, or raw code: automatically remove duplicates, sort alphabetically, filter by domain, and export as CSV/TXT. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Email Address Syntax Validator & MX Checker

Validate email address syntax against RFC standards and check domain structure to prevent delivery errors and catch typos.

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VCF (vCard) File Viewer & Contact Converter (UK Online Edition)

Open and parse .vcf contact card files: view contact names, phone numbers, emails, addresses, job titles, and export contacts to CSV or JSON. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

📅

ICS (iCalendar) File Viewer & Event Parser (UK Online Edition)

Inspect .ics calendar invite files: view event titles, dates, timezones, recurring rules (RRULE), locations, attendee lists, and descriptions. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

CSV Table Viewer & Formatter (Local In-Browser)

Open, sort, filter, and format large CSV files in an interactive table. No data is sent to external servers, protecting sensitive client spreadsheets.

TSV to CSV & CSV to TSV Delimiter Converter (UK Online Edition)

Switch delimiter formats between Tab-Separated Values (TSV) and Comma-Separated Values (CSV) with smart quote escaping. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

Responsive Email Template Previewer (Desktop & Mobile)

Preview HTML newsletter templates across desktop, tablet, and mobile viewpoints in real time to verify email client rendering.

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HTML Email Signature Generator (Gmail, Outlook, Apple Mail) (UK Online Edition)

Design modern responsive email signatures with avatar photo, company logo, phone, social icons, and copy raw HTML or rich-text directly. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🎯

Email Subject Line Tester & Open Rate Optimizer (UK Online Edition)

Score email subject lines: check length limits, spam trigger words, emoji effectiveness, mobile preview truncation, and urgency sentiment. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Mailto Link Generator (Subject, CC, BCC & Body Text) (UK Online Edition)

Generate formatted HTML `mailto:` anchor tags and encoded URL links pre-filled with recipient, CC, BCC, subject line, and message template. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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CSV to JSON & JSON to CSV Converter (Bidirectional) (UK Online Edition)

Instantly convert CSV spreadsheets to structured JSON arrays and flatten nested JSON objects back to clean delimiter-separated CSV files. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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XML to JSON & JSON to XML Converter (UK Online Edition)

Convert XML schemas and feeds into modern JSON trees or serialize nested JSON hierarchies back into clean valid XML documents. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

⚙️

YAML to JSON Converter & Syntax Validator

Convert YAML configurations into valid JSON structures with instant syntax validation and indentation formatting.

Excel to JSON Converter (.xlsx / .xls)

Convert spreadsheet worksheets from Microsoft Excel files into formatted JSON arrays and objects locally in your browser.

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SQL Query Formatter & Beautifier (PostgreSQL, MySQL, SQLite) (UK Online Edition)

Format messy SQL code with capitalized keywords (SELECT, FROM, JOIN, WHERE), proper indentation, line wrapping, and dialect support. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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File Diff Viewer & Side-by-Side Code Comparator (UK Online Edition)

Compare two text files or code snippets side-by-side: highlight character-level additions, deletions, modified lines, and jump between changes. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🔢

Hex to Text & Text to Hex Converter

Convert hexadecimal strings into readable ASCII/UTF-8 characters and encode plain text into clean hexadecimal pairs.

0️⃣

Binary to Text & Text to Binary Converter

Convert 8-bit binary codes to readable ASCII/UTF-8 text and encode standard characters into binary sequences.

🔥 What tools are included in Health & Fitness Calculators (Stones & NHS)?

Calculate TDEE calorie deficit, BMR metabolic rates, BMI body mass index (stones/kg), and NHS growth percentiles.

Open Tool →

🏃

TDEE Calculator (Total Daily Energy Expenditure & Calorie Burn) (UK Online Edition)

Calculate your Total Daily Energy Expenditure (TDEE), basal metabolic rate, and daily calorie deficit or surplus for weight loss or muscle gain. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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BMR Calculator (Mifflin-St Jeor & Harris-Benedict Formulas) (UK Online Edition)

Calculate your Basal Metabolic Rate (calories burned at rest) using scientifically validated Mifflin-St Jeor and Katch-McArdle formulas. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

📏

Body Fat Percentage Calculator (US Navy & YMCA Method) (UK Online Edition)

Estimate body fat percentage, lean body mass, fat mass, and fitness category using waist, neck, hip, and height tape measurements. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

⚖️

Ideal Body Weight Calculator (Devine, Robinson & Healthy BMI)

Free ideal body weight calculator comparing Devine, Robinson, and Miller clinical formulas with support for stones, lbs, and metric kg units.

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Calorie Deficit & Weight Loss Timeline Calculator (UK Online Edition)

Calculate daily maintenance calories, safe deficit target (300-500 kcal), and project your exact target weight milestone dates. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🥑

Macro Calculator (Proteins, Carbs & Fats in Grams)

Calculate your daily macronutrient breakdown in grams and calories based on your body composition (stones, lbs, or kg) and UK fitness targets.

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Daily Water Intake & Hydration Calculator (UK Online Edition)

Calculate recommended daily water intake in liters and cups based on body weight, daily workout intensity, and hot weather conditions. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Pregnancy Due Date & Trimester Calculator

Calculate your estimated delivery date (EDD), conception date, and current pregnancy milestones based on your last menstrual period (LMP).

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Ovulation & Fertile Window Calendar Calculator (UK Online Edition)

Track menstrual cycle length to pinpoint estimated ovulation day, peak fertility window, next period dates, and potential implantation dates. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

💓

Target Heart Rate & Cardio Training Zone Calculator (Karvonen) (UK Online Edition)

Calculate maximum heart rate (MHR) and 5 training zones (Fat Burn, Aerobic, Anaerobic, VO2 Max) using Tanaka and Karvonen formulas. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🏋️

One Rep Max (1RM) Calculator (KG, LBS & Stones)

Calculate your one-rep max for bench press, squat, and deadlift using Brzycki, Epley, and Lombardi clinical formulas.

📐

Waist-to-Hip Ratio Calculator (UK Health Guidelines)

Calculate your waist-to-hip ratio (WHR) and evaluate cardiovascular health risks using UK NHS and WHO body distribution standards.

Running Pace Calculator (Miles & Kilometres Splits)

Calculate training pace, race finish times, and mile/kilometre split targets for 5K, 10K, half marathon, and full marathon events.

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Sleep Cycle & Optimal Bedtime Calculator

Calculate when to fall asleep or set your morning alarm to wake up refreshed at the end of natural 90-minute REM sleep cycles.

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Kids BMI Percentile Calculator (UK NHS Standards)

Calculate children's and teenagers' body mass index and growth percentiles based on UK NHS and WHO pediatric growth charts.

👟

Steps to Distance, Miles, Kilometers & Calories Converter (UK Online Edition)

Convert daily step counts (e.g. 10,000 steps) to precise kilometers, miles, walking duration, and burned active calories using your stride length. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🩺

Blood Pressure Category Checker & Mean Arterial Pressure (MAP) Calculator (UK Online Edition)

Check your blood pressure reading (systolic & diastolic mmHg) against AHA/ACC guidelines: Normal, Elevated, Stage 1, Stage 2 Hypertension, or Crisis, plus Mean Arterial Pressure (MAP) and Pulse Pressure. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🍷

Blood Alcohol Content (BAC) Calculator (UK Limits)

Estimate blood alcohol concentration over time based on drinks consumed and body weight, comparing against UK drink-drive limits.

☕

Caffeine Half-Life & Sleep Cutoff Time Calculator (UK Online Edition)

Track caffeine decay curves over 24 hours: see how much active caffeine remains in your bloodstream at bedtime to prevent insomnia. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

🥩

Daily Protein Intake Calculator (Hypertrophy & Fat Loss) (UK Online Edition)

Calculate recommended grams of protein per day (g/kg and g/lb) based on resistance training frequency, body weight, and fitness goals. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

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Intermittent Fasting Timer & Fasting Window Tracker (16:8, 18:6, OMAD) (UK Online Edition)

Track your fast in real time: monitor metabolic stages (Blood Sugar Drop, Ketosis, Autophagy, Peak Fat Burning) with 16:8, 18:6, 20:4, and OMAD schedules. Client-side processing with zero server uploads, fully compliant with UK Data Protection and GDPR.

📊 What tools are included in Chart Maker & Graph Creator?

Design interactive line graphs, bar charts, and pie/donut charts with custom colours and high-resolution PNG export.

Open Tool →

📈

Line Graph Maker & Trend Plotter (PNG Export)

Plot time-series data and trend lines with interactive tooltips, custom styling, and instant high-resolution image downloads.