Top 15 Free Online Tools for Developers in 2026

Published 2026-06-25 | Category: Developer Tools

Every developer needs a reliable set of tools. Here are 15 free online tools that will boost your productivity in 2026.

Data Formatting

1. JSON Formatter - Beautify, minify, and validate JSON. 2. CSS Minifier - Compress CSS instantly. 3. JS Minifier - Optimize JavaScript code. 4. SQL Formatter - Format SQL queries beautifully.

Encoding & Decoding

5. Base64 Encoder - Text and image Base64 conversion. 6. URL Encoder - encodeURIComponent/decodeURIComponent. 7. JWT Decoder - Decode JWT tokens locally. 8. Morse Code - Convert text to/from Morse code.

Design & Color

9. Color Picker - HEX, RGB, HSL conversion. 10. CSS Gradient - Visual gradient creator. 11. Box Shadow Generator - Interactive CSS shadow builder.

Converters & Calculators

12. Base Converter - Binary/Octal/Decimal/Hex. 13. Age Calculator - Precise age calculation. 14. Pomodoro Timer - Stay focused with timed sessions. 15. URL Slug Generator - SEO-friendly URL creation.

Why ToolHub?

All tools process data locally in your browser. No uploads. No registration. No paywalls. Just pure utility.