Data tools

Data tools that run locally in your browser.

Test Regex Patterns Online

Test regular expressions with live match highlighting.

Format and Validate JSON Online

Format, minify and validate JSON instantly.

JSON Diff — Compare Two JSON Objects

Compare two JSON documents and highlight added, removed, and changed keys. Formatted side-by-side diff.

CSV Diff — Compare Two CSV Files

CSV Diff — Compare Two CSV Files. Free, instant, runs in your browser.

XML Validator Online

XML Validator Online. Free, instant, runs in your browser.

YAML Validator Online

YAML Validator Online. Free, instant, runs in your browser.

TOML to JSON Converter

TOML to JSON Converter. Free, instant, runs in your browser.

XML Formatter Online

XML Formatter Online. Free, instant, runs in your browser.

JSON Flatten — Nested to Dot Notation

JSON Flatten — Nested to Dot Notation. Free, instant, runs in your browser.

JSON Path Tester Online

JSON Path Tester Online. Free, instant, runs in your browser.