Precision-engineered base64, url & html text encoder/decoder for the modern web.
About Base64, URL & HTML Text Encoder/Decoder
Base64, URL & HTML Text Encoder/Decoder is the fastest way to map and audit the URL structure of any webpage without spinning up a crawler or paying for an SEO suite. Built on native browser APIs, it parses rendered HTML on-device, identifies every hyperlink, categorises internal versus external destinations, follows redirect chains and surfaces dead links — all while keeping your input private. Whether you are doing a pre-launch QA pass, a competitor audit or a migration check, Base64, URL & HTML Text Encoder/Decoder gives you a complete, export-ready map of a page's link architecture in under a second.
Problems This Tool Solves
Manually auditing a page's links is slow, error-prone and impossible at scale. - Base64, URL & HTML Text Encoder/Decoder extracts thousands of links per second and classifies each one by type, status code and destination.
Pasting data into an online tool means trusting a third-party server with your content. - Base64, URL & HTML Text Encoder/Decoder runs 100% inside your browser — nothing you paste is transmitted, logged, or stored.
Broken and redirected links quietly hurt SEO rankings and user experience. - Base64, URL & HTML Text Encoder/Decoder surfaces 404s, 301/302 chains and loops in a single audit so you can fix them before Googlebot does.
Exporting link data for use in other SEO tools usually means reformatting spreadsheets. - Base64, URL & HTML Text Encoder/Decoder outputs clean CSV and JSON with industry-standard column headers that drop straight into Ahrefs, Screaming Frog and custom pipelines.
How to Use
Paste the target URL - Drop the page address into the input field. No sign-up, no API key.
Configure the scan - Choose same-page, same-domain or follow-all. Every level stays on-device.
Run the audit - The WebAssembly engine parses the DOM and classifies every link in milliseconds.
Review and export - Inspect the results in-browser or export clean CSV/JSON for your SEO workflow.
Why This Tool Is Better
Local-first privacy - URLs you analyse never leave your browser tab — unlike cloud crawlers that log every request server-side.
WebAssembly speed - Parsing runs at near-native speed, so even long pages with thousands of links complete in well under a second.
Export-ready output - Clean CSV and JSON with canonical column headers plug straight into Ahrefs, Screaming Frog and your own pipelines.