Comprehensive programming utilities to enhance your development efficiency and simplify daily coding tasks
Format and validate JSON data for improved readability and debugging
Quickly encode and decode Base64 strings, supporting both text and file conversion
Generate MD5 and MD4 hash values for text or files with multiple output formats
Securely encrypt and decrypt text using AES algorithm
Encode and decode URLs to ensure compliance and usability
Text case conversion, supporting multiple formats
Test and debug regular expressions with instant match results
Online SHA hash generator supporting SHA-1, SHA-256, SHA-384, SHA-512 algorithms
Generate unique identifiers (UUID/GUID) with customizable formats
Decode, verify, and generate JSON Web Tokens with support for multiple signing algorithms
Generate custom QR codes for text, URL, WiFi, vCard, email, SMS and more
Convert between Unix timestamps and human-readable date/time
Online SQL code beautifier and formatter with support for multiple database dialects
Compare differences between two texts or files with side-by-side highlighted view
Convert colors between HEX, RGB, HSL, CMYK, YCbCr, Lab formats, generate color palettes, and check WCAG contrast
Browser-based serial debugging tool - no download required, real-time monitoring via Web Serial API
All tools run directly in your browser - no downloads or installations required. Ready to use instantly.
All data processing happens locally in your browser. Nothing is sent to our servers, ensuring your data remains private.
We offer a complete toolkit covering programming, design, networking, and more practical functionalities.
CoderTools is a comprehensive suite of free online developer tools built for modern software development workflows. Our platform provides over 50 utilities designed to handle everyday programming tasks, from formatting code to encrypting sensitive data.
We believe development tools should be accessible, fast, and secure. Every tool on CoderTools is designed with three core principles: instant browser-based execution, zero data collection, and professional-grade output quality.
JSON, XML, SQL, YAML formatters with syntax validation
AES, RSA, SHA, and 20+ hash algorithms
Base64, Hex, encoding converters
UUID, QR codes, test data, passwords