16 free tools · no sign-up

All Developer Tools

Every tool runs 100% in your browser. Pick one and start instantly — nothing to install, nothing to sign up for.

Showing 16 tools

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JSON Formatter

Format, validate, minify, and search JSON with tree-view & TS type generation.

HTML Beautifier

Format, beautify, and repair HTML source code with clean indentation settings.

CSS Stylesheet Formatter & Minifier

Format, beautify, and minify CSS style declarations with custom indentations.

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JavaScript Formatter

Format, validate, beautify, and minify JavaScript code with syntax highlight.

JSX Formatter & Prettifier

Format, validate, beautify, and minify JSX React code with custom indentation.

Timestamp Converter

Convert between Unix epoch timestamps and human-readable UTC/local date times.

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JSX to TSX Converter

Convert legacy React JSX to typescript TSX with component prop type inference.

JWT Decoder & Validator

Decode, inspect, and validate JSON Web Tokens (JWT) payload and header data.

Color Format Converter Suite

Convert colors dynamically between RGB, HEX, HSL, and other styling formats.

CSS to Tailwind Converter

Convert raw CSS styles into utility-first Tailwind CSS classes in real-time.

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JavaScript to TypeScript Converter

Convert JavaScript code to TypeScript with smart type annotation inference.

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Word & Text Counter

Count words, characters, sentences, lines, and reading time of your text.

Password Generator

Generate highly secure random passwords with customized strength constraints.

Cryptographic Hash Generator

Generate MD5, SHA1, SHA256, and SHA512 cryptographic hashes of your text.

Meta Tag Generator

Generate search-engine optimized (SEO) meta tags and preview card layouts.

Fake User Generator

Generate realistic mockup user profiles and fake datasets for testing code.