Developer Utility Suite
Free, fast, and online tools for developers. Formatter, converter, generator, and more, all in one place.
Explore ToolsPopular Tools
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.