Category
Formatting & Validation
Validate structure, prettify text, compare output, and inspect formats developers touch every day.
All tools
Diff Checker
Compare two blocks of text and see line-by-line changes instantly for docs, code, configs, and generated output.
JSON Diff
Compare two JSON payloads and see added, removed, or changed fields in a clean visual diff designed for debugging contracts.
JSON Formatter
Format, validate, and minify JSON with instant error hints. Built for API payloads, fixtures, and debugging malformed responses.
JSONPath Tester
Run JSONPath queries against real JSON data and inspect which nodes match before wiring the selector into code.
Markdown Previewer
Write Markdown and preview the rendered output side by side for READMEs, docs, changelogs, and issue templates.
Regex Tester
Test regular expressions against real text, inspect matches and capture groups, and toggle common flags without leaving your workflow.
SQL Formatter
Format SQL queries instantly for PostgreSQL, MySQL, SQLite, and other dialects with readable indentation and line breaks.
XML Formatter
Beautify XML with readable indentation and validate parse errors for feeds, SOAP payloads, and config files.