Tools / Data
HTML Tools
Sandboxed preview, beautify, minify, outline, links, a11y audit, to Markdown. Free, runs entirely in your browser—nothing is uploaded.
What you can do
- Sandboxed preview
- Beautify
- Minify
- Outline
- Links
- A11y audit
- To Markdown
Private by design
HTML Tools runs entirely in your browser. Your input is never uploaded, there is no sign-up, and the tool keeps working offline after the first visit.
Related tools
- Markdown — Live GFM preview, formatting toolbar, TOC, stats, styled HTML export.
- Encoding & Hash — Base64/URL, gzip, SHA, HMAC, HTML entities, data URI.
- URL Inspector — Parse/build URLs, edit query, encode components.