19 Powerful Developer Tools
DevTools Hub
A collection of powerful tools for developers — beautifully crafted, blazing fast, and completely free.
19Tools
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Developer Toolkit
Everything you need
Handpicked tools to supercharge your development workflow — no installs required.
JSON Formatter & Validator
Format, beautify, minify, and validate your JSON data with real-time syntax highlighting.
Base64 Encoder / Decoder
Encode plain text or decode Base64 strings instantly. Supports file and text encoding.
CSS Gradient Generator
Create beautiful linear and radial CSS gradients with a live preview and one-click copy.
UUID Generator
Generate cryptographically secure UUID v4 identifiers in bulk with various format options.
Regex Tester
Test and debug regular expressions with live match highlighting and detailed capture groups.
Text Difference Checker
Compare two blocks of text side-by-side with line-by-line diff highlighting.
Color Converter
Instantly convert colors between HEX, RGB, HSL, and CMYK with a visual preview.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes from text instantly.
HTML to Markdown
Convert raw HTML markup into clean, formatted Markdown syntax with ease.
JWT Decoder
Decode JSON Web Tokens (JWT) to inspect header, payload, and signature data securely.
Lorem Ipsum Generator
Quickly generate paragraphs, sentences, or words of placeholder text for your designs.
SQL Formatter
Beautify and format raw SQL queries into highly readable, indented structures.
URL Encoder / Decoder
Safely encode or decode strict URL components or entire query strings instantly.
Password Generator
Create strong, customizable passwords with uppercase, numbers, symbols and a strength meter.
Markdown Previewer
Write Markdown and see a live rendered HTML preview side-by-side instantly.
Image to Base64
Convert any image file to a Base64 data URI string instantly via drag & drop.
Number Base Converter
Instantly convert numbers between Binary, Octal, Decimal, and Hexadecimal.
HTTP Status Codes
A searchable reference for every HTTP status code with descriptions and color-coded categories.
Cron Expression Builder
Visually build and validate cron schedule expressions with next-run preview.