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Focused tools

10 HTML jobs

Runtime

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Private HTML tools for source inspection

Format, validate, minify, sanitize, encode, decode, extract, inspect, and audit pasted HTML without loading it as a web page.

Every operation remains in the active browser tab.

Choose an HTML job

Each route owns one concrete source or report contract.

HTML FormatterNormalize parser output into readable indented HTML source without executing it.Open tool
HTML Parser ValidatorReport up to 100 parser diagnostics with source positions and a clear non-conformance disclaimer.Open tool
HTML MinifierSerialize a compact parsed tree while preserving text inside pre and textarea elements.Open tool
HTML SanitizerReturn sanitized source text after removing active elements, resource loaders, event handlers, and unsafe URL schemes.Open tool
HTML Entity EncoderTurn literal text characters into named or numeric references without parsing markup.Open tool
HTML Entity DecoderDecode comprehensive HTML5 character references as plain text while leaving unknown names visible.Open tool
HTML to Plain Text ConverterCollect human-readable text with block boundaries and no rendering or remote loads.Open tool
HTML DOM Tree ViewerSerialize parser-recognized structure as inert JSON for debugging and integration review.Open tool
HTML Metadata InspectorExtract a narrow metadata inventory from pasted HTML without resolving or validating destinations.Open tool
HTML Link AuditorCreate an offline URL-attribute inventory with reachability explicitly unchecked.Open tool

Start with the HTML formatter

Normalize one parsed document here, or open a dedicated route for diagnostics, sanitizing, text, tree, metadata, entity, or link work.

Format HTML

Source stays in this tab. Parser input is capped at 500 KiB; sanitizing uses 256 KiB.

Formatted HTML

Every result is inert, copyable source or data, never live DOM.

A bounded local source workspace

Pasted markup can contain private drafts and dangerous active content. Tool Swim parses strings locally and exposes results only as inert text or JSON.

Document and fragment modes are explicit. Input is capped at 500 KiB, sanitizing at 256 KiB, output at 1 MiB, and traversal at 100,000 nodes and 100 levels.

No route loads images, follows links, runs scripts, mounts HTML into live DOM, or claims that parser diagnostics prove full conformance.