Tools that work where your data stays

Word Counter

Count words, characters, sentences, paragraphs and reading time instantly.

Character Counter

Live character counter with and without spaces, plus limits for tweets, SMS, meta titles and meta descriptions.

Case Converter

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case in one click.

Remove Duplicate Lines

Delete duplicate lines from any list or text instantly, with optional case-insensitive matching and trimming.

Text Reverser

Reverse text by characters, words or lines.

Lorem Ipsum Generator

Generate lorem ipsum placeholder text by paragraphs, sentences or words for mockups and layout testing.

JSON Formatter & Validator

Format, beautify, validate and minify JSON in your browser.

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to text, with full UTF-8 support.

URL Encoder / Decoder

Percent-encode text for safe use in URLs, or decode encoded URLs back to readable text.

Regex Tester

Test regular expressions against sample text with live match highlighting, flags, and capture group output.

JWT Decoder

Decode JSON Web Tokens to inspect header and payload claims, with expiry check.

Markdown Previewer

Write Markdown and preview the rendered HTML side by side, live.

Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal instantly, with all four bases shown at once.

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back, in your local time zone and UTC.

CSV to JSON Converter

Convert CSV data to JSON arrays in the browser, with quoted-field support, custom delimiters and pretty output.

Length Converter

Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles instantly.

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin instantly with exact formulas and reference points.

Data Size Converter

Convert between bits, bytes, KB, MB, GB, TB and their binary KiB/MiB/GiB equivalents — and see why your 1 TB drive shows 931 GB.

Percentage Calculator

Calculate percentages three ways: X% of Y, what percent X is of Y, and percentage increase or decrease between two numbers.

BMI Calculator

Calculate Body Mass Index from height and weight in metric or imperial units, with WHO category ranges.

Age Calculator

Calculate exact age in years, months and days from a date of birth, plus total days lived and days until the next birthday.

Loan EMI Calculator

Calculate monthly loan payments (EMI), total interest and total repayment for any principal, rate and tenure.

Compound Interest Calculator

Calculate compound interest growth with optional monthly contributions, any compounding frequency, and year-by-year balance.

Date Difference Calculator

Calculate the exact time between two dates in years, months, days — plus total days, weeks and weekdays.

Password Generator

Generate strong random passwords with custom length and character sets, using your browser's cryptographic randomness.

UUID Generator

Generate version 4 UUIDs (random) in bulk, cryptographically random, with one-click copy.

Hash Generator (SHA)

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text in the browser using the Web Crypto API.

Random Number Generator

Generate random numbers in any range, with or without duplicates, using cryptographic randomness.

Slug Generator

Convert titles into clean, SEO-friendly URL slugs: lowercase, hyphenated, accent-stripped, with stop-word removal option.

Color Palette Generator

Generate harmonious five-color palettes using color theory schemes: analogous, complementary, triadic and monochrome.

Color Converter (HEX / RGB / HSL)

Convert colors between HEX, RGB and HSL formats instantly, with a live preview swatch and one-click copy.

CSS Gradient Generator

Build linear and radial CSS gradients visually with live preview and copy-ready CSS code.

Box Shadow Generator

Design CSS box shadows visually — offset, blur, spread, color and opacity — with live preview and copy-ready code.

Contrast Checker (WCAG)

Check text and background color contrast against WCAG AA and AAA accessibility standards, with live ratio and pass/fail results.

PX to REM Converter

Convert pixels to rem units and back, with a configurable root font size and a quick-reference table of common values.