Developer Text Tools — FreeToolStack

Tools

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Beautify or minify JSON with customizable indentation. Validates syntax automatically.

Validate JSON syntax and see detailed error messages with line numbers.

Test regular expressions against text. See all matches highlighted with capture groups.

More text utilities tools

Word, character, sentence, and paragraph counting tools

Case converter, slug generator, text sorter, deduplicator, and cleanup tools

HTML, URL, Base64, binary, and ASCII encoding and decoding tools

Markdown to HTML, CSV to JSON, and other format conversion tools

Fancy text generator and invisible character tools