Developer Tools

JSON Formatter

Format, prettify, and validate JSON with syntax highlighting.

JSON Validator

Validate your JSON and get clear, helpful error messages.

HTML Encoder

Encode special HTML characters to safe HTML entities.

HTML Decoder

Decode HTML entities back to readable text.

Base64 Encoder

Encode any text or string to Base64 format instantly.

Base64 Decoder

Decode Base64 encoded strings back to readable text.

URL Encoder

Encode a string to be safely used in URLs.

URL Decoder

Decode a URL-encoded string back to its original form.

UUID Generator

Generate random UUID v4 — single or in bulk.

MD5 Hash Generator

Generate the MD5 hash of any input text instantly.

Regex Tester

Test and debug regular expressions with real-time matching, capture groups, and replace preview.

JWT Decoder

Decode JWT tokens locally. View header, payload, claims, and expiration without sending data.

Cron Expression Generator

Build cron expressions visually. Get human-readable translations and next execution times.

Color Converter

Convert between HEX, RGB, HSL, CMYK and more. Includes contrast checker and palette generator.

Markdown Previewer

Live Markdown editor with GitHub Flavored Markdown support, syntax highlighting, and export options.

CSS Minifier

Minify CSS to reduce file size. Remove whitespace, comments, and optimize colors.

JavaScript Minifier

Minify JavaScript code. Remove comments, whitespace, and reduce file size.

HTML Minifier

Minify HTML by removing whitespace, comments, and optional tags. Reduce page size.

Diff Checker

Compare two texts side by side. Highlight added, removed, and unchanged lines.

API Request Previewer

Build and preview API requests. Generate cURL, fetch, axios, and Python code.

QR Code Generator

Generate customizable QR codes for URLs, text, email, phone, Wi-Fi, and more. Download as PNG or SVG.

Password Generator

Generate strong, secure passwords with customizable length, character sets, and strength meter.

Password Strength Checker

Check password strength with real-time analysis, crack time estimation, and improvement tips.

Random Name Generator

Generate random names by gender, origin, and format. Perfect for characters, usernames, and testing.

Fake Data Generator

Generate realistic fake data for testing — names, emails, addresses, phone numbers, companies, and more.

Typing Speed Test

Test your typing speed and accuracy with real-time WPM tracking, error highlighting, and progress stats.

Pomodoro Timer

Stay focused with a customizable Pomodoro timer. Track work sessions, breaks, and daily productivity.

Note Taking Scratchpad

A fast, distraction-free scratchpad for quick notes. Auto-saves to localStorage with Markdown support.