Developer Tools
Format, minify, and encode code and data.
Free Developer Tools — browser-based and private
Every tool in Developer Tools runs in your web browser when possible, so files and text stay on your device. Pick a utility below, read the guide on each tool page, and use related links to move between similar features. No account is required to start.
Tools Directory
01. JSON Formatter
Format, beautify, and minify your JSON data.
02. Base64 Encoder
Encode to Base64 or decode Base64 strings quickly.
03. CSS Minifier
Minify your CSS to save space, or beautify it to read.
04. HTML Beautifier
Format and minify HTML code effortlessly.
05. Color Picker
Select colors and generate shades and complements.
06. Color Palette Generator
Generate SEO-optimized, highly accessible, and visually stunning color palettes based on your preferences.
07. HTML Live Editor
Write HTML and preview it in a sandboxed iframe without running scripts.
08. URL Encoder / Decoder
Encode or decode URL components safely in the browser.
09. Regex Tester
Test regular expressions with match highlighting and safe limits.
Developer tools format JSON, beautify HTML, minify CSS, encode Base64, and build accessible color palettes. They are ideal when you are debugging an API response, cleaning a snippet for documentation, or exploring UI colors.
Everything runs client-side where possible, which keeps staging credentials and proprietary payloads off upload servers.
What you can do here
- JSON validate, beautify, and minify
- Sandboxed HTML live editor
- Regex tester with safe limits
- URL and Base64 encode/decode
Frequently Asked Questions
Can I trust formatted JSON in production?
Always re-validate before deploy. Formatting fixes whitespace; it does not change business logic but invalid JSON will still fail parsing.