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Pretty-print HTML with consistent indentation, lowercased tags, and clean breaks. Works on full documents and fragments.
This html formatter runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Best-effort formatting; not a full validator.
Same browser-only philosophy. Free, no signup, no upload.
Compress HTML by removing whitespace, comments, and optional quotes.
Beautify CSS with one declaration per line and consistent indent.
Format JavaScript / TypeScript in your browser with Prettier.
Beautify XML with consistent indentation and self-closing tags.
Beautify, validate, and minify JSON with sortable keys, exact error positions, and a one-click copy.
Validate JSON syntax with exact line and column for every error.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.