Welcome to JS Tools
Boost your web development workflow with our free online tools. Instantly format JSON, encode/decode Base64, encode/decode URLs, and more. Fast, secure, and easy-to-use utilities for developers and webmasters.
JSON Formatter
Format, validate, and beautify JSON data online. Improve readability, catch errors, and optimize your workflow—no signup needed.
Try it now →Base64 Encoder / Decoder
Encode or decode data using Base64 online. Convert text, images, or files—fast, secure, and privacy-friendly. No data stored.
Try it now →URL Encoder
Encode or decode URLs for safe web transmission. Instantly encode or decode URL components for web development and APIs.
Try it now →Image to Base64
Convert PNG, JPG, SVG, GIF, and more to Base64 or CSS Data URL. Instantly encode images for HTML, CSS, or JSON.
Try it now →Word & Character Counter
Count words, characters (with and without spaces) in your text instantly. Perfect for developers, writers, and SEO specialists.
Try it now →JWT Decoder
Decode and inspect JWT tokens online. Instantly view header, payload, and signature for debugging and development. No data stored.
Try it now →Random Number Generator
Generate random numbers online for development, testing, or fun. Set your range and get a secure, privacy-friendly random integer instantly.
Try it now →Lucky Number Generator
Generate your lucky number instantly for games, raffles, or daily inspiration. Fast, secure, and privacy-friendly. No signup required.
Try it now →