Free Developer Tools
Fast, browser-based tools for day-to-day development workflows. Format, encode, test, and convert data in seconds.
JSON Formatter & Validator
Beautify, minify, validate, copy, and download JSON instantly.
Base64 Encoder / Decoder
Encode text or files to Base64 and decode Base64 back to text.
UUID Generator
Generate v4 UUIDs in bulk, copy all, and auto refresh.
URL Encoder / Decoder
Encode and decode URLs quickly for web development use-cases.
Regex Tester
Test regex patterns with flags and match highlighting.
Timestamp Converter
Convert Unix timestamps and human-readable dates across timezones.
Color Picker & Converter
Convert between HEX, RGB, and HSL with a live color preview.
HTML Minifier / Beautifier
Format and minify HTML code with copy and download support.
Why Developers Use ToolDost
ToolDost developer tools are built for practical coding workflows: API debugging, payload cleanup, validation, encoding, and quick frontend conversions. Each tool runs instantly in your browser with no login and no setup.
Popular Developer Workflows
| Workflow | Recommended Tool | Outcome |
|---|---|---|
| API debugging | JSON Formatter | Readable payloads and validation checks |
| String encoding | Base64 + URL Encoder | Safe transport in headers and query params |
| Data generation | UUID Generator | Unique IDs for records and test fixtures |
| Pattern matching | Regex Tester | Verified regex before production usage |
Developer Tools FAQ
Are these tools free to use?
Yes. All current developer tools are free and available without signup.
Do these tools upload my code or data?
Core processing is browser-based for these utilities, so your content remains local during usage.
Which tool should I start with?
JSON Formatter and Regex Tester are the most common for API and validation workflows.
Build Faster With ToolDost
Open any developer tool above and speed up formatting, debugging, and conversion tasks in seconds.