Free Developer Tools for Everyday Coding
The essential toolbox for developers — format code, convert data, test patterns, and generate secure values instantly in your browser.
Developer Tools
Whether you are debugging an API response, formatting a messy JSON payload, testing a regular expression, or generating a secure password, our developer tools save you time. Every tool runs 100% in your browser, so your code and data never leave your device.
JSON Formatter
Beautify, validate, minify JSON
YAML ↔ JSON
Convert between YAML and JSON
JSON Converter
JSON to CSV, YAML, or text
Base64 Encoder
Encode and decode Base64
URL Encoder
Encode/decode URLs & query params
HTML Entity Encoder
Encode/decode HTML entities
Regex Tester
Test regex patterns live
JWT Decoder
Decode and inspect JWT tokens
Hash Generator
MD5, SHA-256, Bcrypt hashes
UUID Generator
Random Version 4 UUIDs
Password Generator
Strong, secure passwords
Binary Converter
Binary ↔ Decimal ↔ Hex
Cron Parser
Parse cron expressions to schedules
URL Parser
Break down URLs into components
Code Minifier
Minify HTML, CSS, and JS
CSS Formatter
Beautify and minify CSS
JS Formatter
Format and minify JavaScript
SQL Formatter
Beautify SQL queries
JSON → TypeScript
Generate TS interfaces from JSON
CSV to JSON
Convert CSV to JSON
JSON to CSV
Export JSON to CSV
HTML Preview
Live HTML editor and preview
Markdown Preview
Live Markdown editor
Why Use Our Developer Tools?
Developer tools are the backbone of modern coding workflows. From JSON formatting and validation to URL encoding, hash generation, and regular expression testing, having fast, reliable utilities at your fingertips dramatically speeds up debugging and development.
Our developer tools are built to be private by design. Unlike many online utilities that process your code on remote servers, everything here runs locally in your browser using JavaScript. Paste sensitive configuration files, API keys, or JWT tokens with confidence — nothing is transmitted anywhere.
All tools are free, unlimited, and require no registration. They work on desktop and mobile, and many include real-time output so you can see results as you type. Bookmark your favorites and keep your workflow moving.
Key benefits
- 100% client-side — your code and tokens never leave your browser
- Real-time results as you type or paste
- Covers JSON, regex, Base64, JWT, hashing, minification, and more
- Free, unlimited, no account, no watermarks
- Works on desktop and mobile browsers
Developer Tools — FAQ
Quick answers about these tools.
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Start Using Developer Tools — 100% Free & Unlimited
No account, no limits, no watermarks. Open any tool and it works instantly in your browser.
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