46+ Developer Tools

All-in-One Developer Toolkit

Format, convert, encode, and generate with powerful browser-based tools. No installation, no signup, 100% private.

Search tools... (e.g., JSON, Image, Hash)⌘K

Explore All Tools View on GitHub

45+

Developer Tools

Why Web Toolkit?

100% Client-Side

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

Lightning Fast

No server roundtrips. Instant results for all your development tasks.

Free & Pro Tools

45+ free tools for everyone. Unlock advanced features with Pro.

Works Offline

Once loaded, most tools work without an internet connection.

Why Developers Choose Web Toolkit

Web Toolkit was built by developers, for developers. We understand the daily frustrations of switching between multiple websites, installing desktop applications, or worrying about data privacy when using online tools. That's why we created a comprehensive suite of over 40 developer tools that work entirely in your browser.

Unlike traditional online tools that send your data to remote servers, every tool in Web Toolkit processes data locally using modern web technologies like WebAssembly. This means your sensitive JSON data, JWT tokens, API keys, and other confidential information never leaves your device. Whether you're formatting production API responses or debugging authentication tokens, your data remains completely private.

Our tools are designed with modern development workflows in mind. From formatting JSON responses during API debugging to generating hash values for file verification, converting images for web optimization, or parsing complex regular expressions, Web Toolkit provides everything you need in one place. All tools work offline once loaded, making them perfect for developers who work in restricted network environments or simply want faster performance.

Tools by Category

View All

Text

JSON Formatter

Format, minify, and validate JSON data.

Open tool

URL Parser

Parse URLs into components and edit query parameters.

UUID/ULID Generator

Generate UUID v1, v4, and ULID with various format options.

SQL Formatter

Format SQL queries with support for multiple dialects.

Cron Parser

Parse cron expressions and predict next execution times.

Markdown Preview

Live preview Markdown with syntax highlighting support.

Media

Image Resizer

Resize images, convert formats, and adjust quality in your browser.

App Icon Generator

Generate app icons for iOS, Android, and Favicon in all required sizes.

QR Code Generator

Generate QR codes for URLs, WiFi, contacts, and more.

Color Picker

Extract colors from images and generate color palettes.

Box Shadow Generator

Visually edit CSS box-shadow and generate code.

Gradient Generator

Visually create CSS gradients and generate code.

Converters

Unix Timestamp

Convert between Unix timestamps and human-readable dates.

Base64 Converter

Encode and decode text or files to/from Base64.

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal.

URL Encoder/Decoder

Encode or decode URLs for safe transmission.

HTML Entity Encoder

Encode and decode HTML special characters to entities.

CSS to Tailwind

Convert CSS properties to Tailwind CSS classes.

Security

JWT Decoder

Decode JWT tokens to view Header, Payload, and expiration time.

Open tool

Hash Generator

Generate and compare MD5, SHA-1, SHA-256, SHA-512 hashes.

View All (45 Developer Tools)

Built for Every Developer

Frontend Developers

Optimize images, generate CSS gradients, convert colors between formats, create responsive icons, and format JSON data from APIs. Perfect for building modern web applications with tools that integrate seamlessly into your workflow.

Backend Developers

Debug JWT tokens, generate secure hashes, encode/decode Base64 data, parse URLs, and format SQL queries. Essential tools for API development, authentication systems, and data processing tasks.

DevOps Engineers

Parse cron expressions, generate UUIDs, convert Unix timestamps, and build curl commands. Streamline your infrastructure workflows with tools designed for automation and system administration.

How It Works

Choose Your Tool

Browse our collection of 30+ developer tools organized by category. Use the search function or keyboard shortcut (⌘K) to quickly find what you need.

Process Your Data

Paste your input, upload your files, or configure your settings. All processing happens instantly in your browser with real-time feedback and validation.

Copy and Continue

Get your results instantly. One-click copy to clipboard, download processed files, or share your work. No account needed, no data stored.

Frequently Asked Questions

Ready to Boost Your Productivity?

Join thousands of developers who use Web Toolkit daily. No signup required, just open and start using the tools you need.

Start Using Free Tools