Developer Tools
JSON, Base64, UUID and other utilities for developers.
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JSON Formatter
Format, validate and minify JSON.
PopularBase64 Encode/Decode
Encode & decode Base64 strings.
UUID Generator
Generate v4 UUIDs.
Regex Tester
Test regular expressions with live match highlighting and groups.
PopularSQL Formatter
Format SQL queries into readable multi-line syntax.
PopularSQL Query Beautifier
Beautify SQL queries with keyword casing and dialect options.
HTML Formatter
Indent and prettify HTML, XML and JSX markup.
API Response Formatter
Paste any API response — auto-detects JSON/XML and prettifies it.
JSON to C# Class Generator
Turn a JSON payload into strongly-typed C# model classes.
XML Formatter
Pretty-print, validate and minify XML documents in your browser.
URL Encoder / Decoder
Encode and decode URLs with full component and query-string support.
Popular