The Ultimate Hub for Client-Side Developer Tools
Welcome to CoderTab, the definitive resource for programmers, data analysts, security professionals, and web designers. We provide a comprehensive suite of free developer tools designed for speed, security, and simplicity. In an era where data privacy is paramount, our entire collection of online tools operates 100% on the client-side. This means your data never leaves your browser, giving you a secure sandbox to format, parse, debug, and generate data without risk.
Our tools cover the entire spectrum of development tasks. From handling complex data structures to ensuring cryptographic security and perfecting your front-end content, this toolbox is built to be your go-to daily resource.
Data & Formatting Tools: JSON, Base64, and URL
Handling data formats is a daily chore for any developer. Our formatting tools are designed to make this process instant and painless.
Online JSON Formatter & Validator
Working with unformatted, single-line API responses is a nightmare. Our JSON Formatter (also known as a JSON beautifier) takes messy, minified JSON and instantly converts it into a clean, "pretty-print" format with perfect indentation. More importantly, it acts as a JSON validator, immediately flagging syntax errors like missing commas or mismatched brackets. This is an essential tool for debugging API payloads, configuration files, and any JSON data.
Base64 Encoder & Decoder
Base64 is an encoding scheme, not encryption. It's used to convert binary data into a text-safe ASCII format. Our Base64 Encoder and Base64 Decoder allow you to perform this conversion instantly. Use our text to Base64 function to encode data for use in Data URLs or auth headers, or use our Base64 to text function to decode a string and see its original content.
URL Encoder & Decoder
URLs can only contain a specific set of characters. Special characters (like spaces, `+`, or `&`) must be "percent-encoded" to be safely transmitted. Our URL Encoder converts any string into this URL-safe format, while our URL Decoder reverses the process, turning confusing strings like `%20` back into a readable space.
Cryptography & Security Tools
Our security tools provide essential cryptographic functions, all running safely in your browser.
JWT Decoder
A JSON Web Token (JWT) is a compact standard for securely transmitting information. But they are unreadable by default. Our JWT Decoder lets you paste in a token and instantly see the header and payload (claims) in a clear JSON format. This is perfect for debugging authentication or verifying the contents of a token without ever exposing it to a server.
Hash Generator (MD5, SHA-1, SHA-256)
Need to generate a cryptographic hash from a string? Our Hash Generator creates multiple hashes in real-time. Instantly get the MD5, SHA-1, SHA-256, and SHA-512 hashes for any text input. This is ideal for password hashing (though salting is recommended), data integrity checks, or other cryptographic needs.
File Hash Generator
How do you know that file you just downloaded is authentic and uncorrupted? You check its hash. Our File Hash Generator acts as a powerful file integrity checker. Drag and drop any file, and our tool will read it in your browser (it's never uploaded) and generate its MD5, SHA-1, and SHA-256 hashes. Compare these against the hashes provided by the source to verify your download.
Secure Password Generator
Stop using weak passwords. Our Strong Password Generator creates highly secure, random passwords with customizable length, and options to include numbers and symbols. Because it's a client-side password generator, your new password is never transmitted, seen, or stored by us.
Web, Content & Utility Tools
A collection of essential utilities for content creators, designers, and programmers.
Real-Time Markdown Previewer
Our Markdown Previewer is a must-have for anyone writing documentation or blog posts. Type your Markdown on the left and see the perfectly rendered HTML on the right, instantly. It's the best markdown to HTML converter, offering a simple, secure, and real-time writing environment.
QR Code Generator
Turn any URL or string of text into a scannable image. Our free QR code generator is fast, simple, and allows you to download a high-quality PNG of your new QR code right from your browser.
Color Converter (HEX, RGB, HSL)
A vital tool for front-end developers and designers. Our Color Converter provides a color picker and two-way conversion between HEX to RGB, RGB to HSL, and HSL to HEX. Get the exact color code you need in any format, instantly.
Unix Timestamp Converter
What is `1678886400`? It's a timestamp. Our Epoch Time Converter makes sense of these numbers. Convert any Unix timestamp to a human-readable date (and back), or get the current timestamp with one click.
Word & Character Counter
For writers, students, and SEO specialists. Our Word Counter provides a real-time count of words, characters, sentences, and paragraphs as you type. Ensure your articles meet their length requirements or your social media posts fit within the character limit.
Case Converter
Pasted in a block of text that's all uppercase? Fix it in one click. Our Case Converter tool instantly changes text to UPPERCASE, lowercase, Title Case, or Sentence case.