💻 Developer Tools

Free Developer Tools

Explore 8 practical developer tools for everyday work. Browser tools run locally whenever possible, and Windows downloads are clearly marked.

Online Tools

Use in your browser

🧩

Web

JSON Formatter

Format, beautify, and validate JSON

Free · No sign-upOpen tool →

🔡

Web

Base64 Encoder & Decoder

Encode and decode Base64 text

Free · No sign-upOpen tool →

🔗

Web

URL Encoder & Decoder

Encode and decode URL text safely

Free · No sign-upOpen tool →

⏱️

Web

Timestamp Converter

Convert Unix timestamps and readable dates

Free · No sign-upOpen tool →

🔎

Web

Regex Tester

Test regular expressions against sample text

Free · No sign-upOpen tool →

🎫

Web

JWT Decoder

Decode JWT headers and payloads locally

Free · No sign-upOpen tool →

🎨

Web

Color Converter

Convert HEX, RGB, and HSL color values

Free · No sign-upOpen tool →

🆔

Web

UUID Generator

Generate standard UUID v4 values

Free · No sign-upOpen tool →

FAQ

Q.Are these developer tools free?⌄

Yes. ToolMarket tools are free to use and do not require an account.

Q.Are files uploaded to ToolMarket servers?⌄

Browser tools are designed to process files locally in your device whenever possible, and downloadable apps run on your Windows PC.

Q.Which tools should I start with?⌄

Start with the tool that matches your task, such as PDF Merger, Image Resizer, Word Counter, or QR Code Generator.