8 browser-based tools
Internet & Developer
Format data, generate identifiers, convert colors, and inspect web values.
Explore internet & developer tools
Choose a tool for an immediate answer. Inputs stay on this device unless the page clearly says otherwise.
URL Encoder / Decoder
Safely encode or decode URL components in your browser.
Internet & DeveloperBase64 Encoder / Decoder
Encode Unicode text as Base64 or decode Base64 back to text.
Internet & DeveloperJSON Formatter
Format, minify, and inspect JSON locally with clear syntax errors.
Internet & DeveloperUUID Generator
Generate cryptographically random UUID version 4 identifiers.
Internet & DeveloperHash Generator
Create SHA-256, SHA-384, or SHA-512 hashes using the Web Crypto API.
Internet & DeveloperHEX / RGB / HSL Color Converter
Convert a color between HEX, RGB, and HSL formats with a live preview.
Internet & DeveloperHTTP Status Code Lookup
Look up the meaning and category of common HTTP response codes.
Internet & DeveloperUser Agent Viewer
View the user-agent string and basic browser capabilities reported by this device.
Designed for quick, reliable answers
These tools put the useful part first. Each page explains the calculation or transformation it performs, includes practical examples, and links to closely related utilities.
No account is required, and these utilities work entirely in your browser.