Developer Tools
4 Tools AvailableProductivity utilities for web developers: JSON formatters, Base64 converters, URL encoders, color code converters, and HTML entity handlers.
JSON Formatter & Validator
Developer ToolsPretty-print, format, validate, and minify JSON data with instant syntax error detection and line numbers.
Base64 Encoder & Decoder
Developer ToolsEncode plain text to Base64 strings or decode Base64 data back to readable UTF-8 text.
URL Encoder & Decoder
Developer ToolsEncode URLs and query parameters to percent-encoded format or decode encoded URLs back to human text.
HEX to RGB & RGB to HEX Converter
Developer ToolsConvert color codes between HEX (#ffffff) and RGB(255, 255, 255) with live color preview box and CSS output.
About Our Free Developer Tools
All tools in our Developer Tools collection are engineered for speed, convenience, and absolute user privacy. Whether you are accessing from a mobile smartphone, tablet, or desktop workstation, our utilities execute algorithms instantly without requiring user accounts or third-party tracking.
Why Use Our Developer Tools?
- Zero Installation: Runs straight in modern web browsers without extensions or software.
- Local Browser Computation: Calculations, formatting, and file adjustments happen locally on your device.
- Always 100% Free: Uncapped daily usage with zero hidden subscription paywalls.
Explore Other Categories
Discover more specialized utilities
Calculators
Fast, accurate, and free online calculators for age, percentage, discoun...
Date & Time
Precision date and time utilities for calculating intervals, working day...
Image Tools
Privacy-first client-side image utilities to compress, resize, crop, and...
PDF Tools
Lightweight PDF utilities to merge multiple documents, extract pages, co...
Text Tools
Comprehensive text manipulation utilities including word counters, case ...
Converters
High-precision unit converters for length, mass, temperature, data stora...
Finance
Practical financial calculators for EMI loans, GST tax breakdowns, SIP m...
India Tools
Specialized utilities for India: Indian number words in Lakhs and Crores...
Student Tools
Essential tools for students: attendance bunk calculators, percentage fr...
Security Tools
Client-side cryptographic utilities: cryptographically secure password g...
Everyday Tools
Everyday household and workplace utilities including ratio simplifiers, ...