Developer Tools

JSON Formatter

Format, validate, and beautify JSON data instantly in your browser.

JWT Decoder

Decode and inspect JSON Web Tokens (header, payload, signature) without sending data anywhere.

CSS Minifier

Minify CSS to reduce file size and improve page load performance.

JS Minifier

Minify JavaScript code to reduce bundle size for production.

HTML Formatter

Format and beautify messy HTML markup for readability.

YAML Formatter

Format, validate, and convert YAML — including Kubernetes manifests and CI configs — right in your browser.

UUID Generator

Generate v4 UUIDs / GUIDs in bulk for testing and development.

Password Generator

Generate strong, random passwords with customizable length and character sets.

QR Code Generator

Create downloadable QR codes for URLs, text, and more.

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text by paragraphs, sentences, or words.

Cron Generator

Build and understand cron expressions with a plain-English description and upcoming run times.

Timestamp Converter

Convert between human-readable dates and timestamps across timezones.

Unix Time Converter

Convert Unix epoch time to readable date/time and back, instantly.

Color Converter

Convert colors between HEX, RGB, HSL, and OKLCH with a live preview.

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 strings back to plain text.

URL Encoder

Encode or decode URL components safely for query strings and links.

Regex Tester

Test regular expressions against sample text with live match highlighting.

Markdown Preview

Write Markdown and preview the rendered HTML output live.

CIDR Calculator

Calculate network address, broadcast address, netmask, and usable host range from CIDR notation.

Subnet Calculator

Split a network into equal-size subnets and see each subnet's usable address range.