Markdown ⇄ HTML Converter
Convert Markdown to HTML, HTML to Markdown, or strip messy HTML to clean semantic markup.
Developer UtilitiesOpen tool
Text & Code Diff Checker
Compare text, code, or JSON and highlight added and removed content. Export a readable difference report.
Original
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Updated
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Compare drafts, code, or JSON without uploading them. Line mode preserves whitespace; JSON mode compares formatted values. Downloads are readable comparison reports, not executable patches. Up to 200,000 characters combined.
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