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Free Developer Tools Online - Coding Utilities

JSON, Base64, Regex, JWT, formatters and more.

Popular Developer Tools

Explore our most used developer tools to boost your productivity.

JSON Formatter
Format, validate and beautify JSON data instantly.
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JSON to CSV
Convert JSON arrays to CSV format and download.
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Base64 Encode / Decode
Encode or decode text and files to Base64.
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URL Encoder / Decoder
Encode and decode URL components with ease.
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UUID Generator
Generate multiple unique UUID v4 identifiers instantly.
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Regex Tester
Test and debug regular expressions with live highlighting.
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JWT Decoder
Decode and inspect JWT token header and payload.
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HTML Formatter
Beautify and format HTML markup with proper indentation.
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CSS Minifier
Minify or beautify CSS stylesheets for production or editing.
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JS Minifier
Minify or beautify JavaScript code for performance.
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Git Command Generator
Interactive Git cheat sheet to find and copy exactly the commands you need.
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Chmod Linux Calculator
Calculate Unix/Linux file permissions with an interactive checkbox grid.
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Cron Expression Generator
Translate cron strings to plain English or generate them via an easy UI.
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SQL Query Formatter
Beautify and format complex SQL queries with syntax highlighting.
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Docker to Docker-Compose
Convert long docker run CLI commands into ready-to-use docker-compose.yml files.
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CSV to JSON Generator
Parse and convert CSV text or files into formatted JSON instantly.
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SVG Optimizer
Clean up and minify SVG code by removing unnecessary metadata.
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Programmer Calculator
Perform bitwise operations and base conversions (HEX, DEC, OCT, BIN).
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What are Developer Tools?

Developer tools are the backbone of efficient programming and debugging. Our collection of online developer utilities is designed to help software engineers, web developers, and QA testers streamline their daily workflows. Whether you need to quickly format a messy JSON object, encode a string into Base64 for an API request, or test a complex Regular Expression, we've got you covered. These tools eliminate the need for installing heavy IDE extensions or command-line utilities for simple, one-off tasks.

Who Should Use These Tools?

These tools are perfect for full-stack developers, frontend engineers, backend specialists, and data scientists. They are also incredibly helpful for students learning to code who need to inspect data structures like JWT tokens or explore how different encoding algorithms work. If you work with web technologies, handle API responses, or manage configuration files, you will find these tools indispensable.

Benefits of Our Online Developer Tools

Using developer tools online offers several advantages. First, they are platform-independent—you can use them on Windows, macOS, Linux, or even your mobile device without setting up a local environment. Second, they provide instant results, saving you the time of looking up syntax or installing npm packages. Finally, our tools are built for speed and privacy, ensuring your snippets and sensitive data stay entirely in your browser.

100% Secure & Private

Processing happens locally on your device.

Instant Results

Fast, serverless execution in the browser.

No Signup Required

Start using all tools immediately for free.

Why Choose Our Developer Utilities?

Our platform prioritizes developer experience. We offer a clean, dark-themed interface that reduces eye strain during long coding sessions. Every tool is 100% free, requires no signup, and runs locally on your device for maximum security. We don't store your code, logs, or secrets, making us a trusted choice for secure development tasks.

Start using free tools now

Frequently Asked Questions

Are these developer tools free to use?

Yes, every tool in our developer category is completely free with no hidden charges or premium versions.

Is my source code or JSON data safe?

Absolutely. All processing happens locally in your browser using JavaScript. No data is ever sent to our servers.

Do I need to sign up to use the JWT decoder?

No login or registration is required. Simply paste your token and get results instantly.

Can I use these tools on my mobile phone?

Yes, our tools are fully responsive and work perfectly on mobile browsers for quick debugging on the go.