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Essential Developer Tools

DevToolsLib
Your Developer Toolkit

A comprehensive collection of essential developer tools designed for speed, privacy, and ease of use. Format JSON, validate code, convert data, and much more - all in your browser.

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8+
Available Tools
100%
Privacy Protected
Free
Always & Forever

Why Choose DevToolsLib?

Built with modern web standards and developer experience in mind. Every tool is crafted for performance and ease of use.

Lightning Fast

Optimized for speed with client-side processing and instant results.

Privacy First

All processing happens in your browser. Your data never leaves your device.

Completely Free

All tools are free to use with no registration required.

Mobile Friendly

Works perfectly on all devices - desktop, tablet, and mobile.

Available Tools

Professional-grade tools built for developers, by developers. Start using them right away.

Formatters

JSON Formatter

Formatters

Format, validate, and beautify JSON data with syntax highlighting and error detection.

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CSS Formatter

Formatters

Format, beautify, and minify CSS code with syntax highlighting. Sort properties, remove duplicates, convert colors, and optimize your stylesheets.

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Generators

Color Palette Generator

Generators

Generate beautiful color palettes with 7 professional modes, gradient preview, and export to CSS, SCSS, JSON, or Tailwind.

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Mock Data Generator

Generators

Generate realistic mock data instantly for testing and development. Create JSON, CSV, or SQL data for users, products, companies, and more with customizable schemas.

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Image Tools

Image Format Converter

Image Tools

Convert images between PNG, JPEG, WebP, BMP, and ICO formats with adjustable quality settings.

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Product Background Editor

Image Tools

Create professional product images with custom backgrounds, shadows, and auto-lighting. Perfect for e-commerce and social media.

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Image Resizer

Image Tools

Resize images with social media presets (Instagram, YouTube, Facebook) or custom dimensions while maintaining aspect ratio.

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Base64 Encoder

Image Tools

Convert images to Base64 encoding for embedding in HTML, CSS, or JSON. Get data URI or plain Base64.

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Coming Soon

We're constantly expanding our toolkit. Here's what's in development and coming to DevToolsLib soon.

URL Encoder/Decoder

Encoders

Encode and decode URLs for web development.

Base64 Converter

Converters

Convert text and files to/from Base64 encoding.

Meet Our Team

Built by Developers,
for Developers

Meet the passionate developers behind DevToolsLib who are dedicated to creating the best developer tools experience.

MM

Muhammad Mithal Sheeno

Founder, CEO and Developer

Front-end developer with 4+ years of experience. Passionate about creating tools that solve real problems and respect user privacy.