Extentius
Small, useful browser tools
Extentius builds privacy-first tools that do one thing well and run entirely in your browser. We sweat the small details and keep the numbers honest. Here's what's live so far.
Products
Snip2Prompt
Click any element on a page and get a clean, token-light prompt to rebuild that component with ChatGPT or Claude. Bookmarklet + Chrome extension.
Open →
TableSnip
Click any table on a page and copy it as clean CSV, Markdown, or JSON. No upload, 100% local.
Try it →
What's next
We ship small, useful tools and keep the ones people actually use. The ones that earn their spot stay; the rest get cut.
Why these tools are worth trusting
Private by default
They process what they need locally and collect nothing unless you opt in. No tracking baked in.
Free core, fair upgrades
The useful part is free. If there's a paid tier it's a small, optional one-time or monthly add-on.
No nonsense
No dark patterns, no fake urgency. The tools collect nothing; the site uses only cookieless analytics. We cut tools nobody uses instead of pretending.