Browse tools by category
Find the exact tool you need by exploring our curated categories. Each section groups together related utilities, converters, and generators built for speed, reliability, and privacy.
Code Formatters
Format and beautify code in various languages
Color Tools
Convert and manipulate colors between different formats
Data Converters
Convert data between different formats
Data Parsers
Parse and extract data from various sources
Data Validators
Validate various types of data and formats
Data Viewers
View and preview different data formats
Encoders & Decoders
Encode and decode data in various formats
Hash Generators
Generate cryptographic hashes and checksums
HTML Information
Extract information from HTML documents
Image Tools
Generate and manipulate images
JSON Tools
Work with JSON data - format, validate, and manipulate
Number Tools
Mathematical operations and number utilities
Random Generators
Generate random data and values
Security Tools
Cryptography and security utilities
Text Tools
Text manipulation and transformation utilities
Text Utilities
Miscellaneous text processing tools
Unit Converters
Convert between different units of measurement
Can’t find what you’re looking for?
We’re continuously expanding W3Chars with new free developer utilities. Use the search bar in the header to jump directly to a tool, or let us know which category you’d like to see more of.
Popular categories include color converters, random generators, and unit converters. We keep all tools up to date with the newest language features and best practices.
For an alphabetical listing of every tool, visit the full tools directory.