Developer Utility Suite

Free, fast, and online tools for developers. Formatter, converter, generator, and more, all in one place.

Explore Tools

Popular Tools

Red JSON

JSON Formatter

Use Tool

Bit Calculator

Convert between binary, decimal, and hex

Coming soon

URL Encoder/Decoder

Encode and decode URLs safely

Coming soon

Color Picker

Find color codes and build palettes

Coming soon

UUID Generator

Generate unique identifiers (UUIDs)

Coming soon

Regex Tester

Test and debug regular expressions

Coming soon

Tool Categories

Formatters

JSON, XML, SQL

Converters

Base64, CSV to JSON

Generators

UUID, Password, Lorem Ipsum

Text & String

Case Converter, Diff Tool

Web & Network

URL Encoder, JWT Decoder

Why Tolio?

✓ 100% Free

All tools are available at no cost.

🔒 Secure & Private

All processing is done in your browser; no data is sent to our server.

⚡ Fast & Efficient

Optimized tools for the best performance and speed.

📱 Responsive

Works perfectly on all devices, from mobile to desktop.