Less busywork. More done.

URL Inspector & Query Editor

Parse an HTTP or HTTPS URL locally, inspect its components, edit repeated query parameters and optionally remove common tracking keys without opening the URL.

Text Contrast Checker

Calculate the WCAG contrast ratio for two opaque sRGB hex colors and compare normal text, large text and non-text thresholds using the unrounded ratio.

JSON Formatter & Validator

Format, validate and minify JSON with syntax error reporting.

Timestamp Converter

Convert Unix timestamps to readable dates and back, in seconds or milliseconds.

Base64 Encoder / Decoder

Encode or decode text and files to and from Base64 (UTF-8 safe).

Hash Generator

Calculate text or file checksums locally with SHA-256, SHA-512, MD5 and SHA-1. Check an abc example, compare exact bytes, and learn the limits of checksum matching.

Regex Tester

Test regular expressions with live match highlighting and groups.

Password Generator

Strong random passwords with custom length and character sets.

UUID v4 Generator

Generate 1–500 UUID v4 identifiers in your browser. Choose uppercase or no hyphens, copy a batch or download TXT. Includes format examples and uniqueness limits.

Word & Character Counter

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

Case Converter

Convert text to UPPERCASE, lowercase, Title Case, camelCase and more.

Lorem Ipsum Generator

Placeholder text in paragraphs, sentences or words, one click away.

Text to Speech

Listen to any text read aloud with adjustable voice, speed and pitch.

Color Converter

Convert between HEX, RGB and HSL, and explore color palettes.

Color Palette Generator

Create harmonious 5-color schemes and copy HEX codes.

Unit Converter

Convert length, weight, temperature, area, volume, data and time units.

QR Code Generator

Create QR codes for URLs, text and WiFi - download PNG or SVG.

Currency Converter

Estimate conversions between 30+ currencies using dated daily reference rates.

Time Zone Converter

Convert dates in 27 zones, detect DST gaps, choose repeated-hour occurrences and check date rollover.

Images

Image Compressor

Compress images in your browser with full control over quality and size.

Images

Image Resizer

Resize images by pixels or percentage with instant preview and download.

Images

Image to WebP

Convert JPG, PNG and more to WebP with adjustable quality.

CSV to JSON Converter

Convert between CSV and JSON with header detection and custom delimiters.

SEO

URL Slug Generator

Turn any title into a clean, SEO-friendly URL slug.

SEO

Meta Tag Generator

Generate SEO meta tags with a live Google search preview.

SEO

Long-tail Keyword Generator

Generate long-tail keyword ideas from seed keywords.

AI prompts

AI Prompt Library

20+ ready-to-use prompts for ChatGPT, Claude and Gemini.

Text Diff Checker

Compare two texts line by line with changes highlighted.

Age Calculator

Calculate exact age in years, months and days with a birthday countdown.

Random Number Generator

Random numbers between any range - integers, decimals, unique or not.

Mortgage Calculator

Monthly payments, total interest and a full amortization schedule.

Percentage Calculator

Percent of a value, ratio between values, and percentage change.

BMI Calculator

Body Mass Index, category and healthy weight range.

Pomodoro Timer

Deep focus with customizable work and break sessions, tracked locally.

PDF Merger

Combine multiple PDF files into one document.

PDF Splitter

Extract pages or page ranges from a PDF.

Number to Words

Convert numbers to English words, US and UK style.

Markdown Editor

Write Markdown with live HTML preview.

HTML Encoder / Decoder

Escape HTML entities safely - prevent broken pages and XSS.

JWT Decoder

Decode a three-part JWT header and payload locally. Read exp, iat and nbf as UTC dates, try a synthetic sample, and understand why decoding does not verify a token.

Subnet Calculator

Network, broadcast, host range and mask for any IPv4/CIDR.

Emoji Picker

300+ emojis by category - click to copy instantly.