About Toololis

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Toololis is a free online toolkit with browser-based utility tools. We built it because we were tired of the dominant pattern on the web: tool sites that are bloated, slow, demand signups, and upload your private files to unknown servers.

Our mission

Make the web's most-needed utilities instantly usable, privately, from any device, forever. No accounts. No uploads. No watermarks. No limits. No tracking of your content.

How we work

  • Client-side by design: Almost every tool runs in your browser using JavaScript, the Canvas API, and WebAssembly. Your files stay on your device; the few tools that need an outside service (for example exchange rates or DNS and IP lookups) say so on their page.
  • Open-source libraries: We use trusted, audited libraries — pdf-lib, pdfjs-dist, qrcode, diff, js-md5 — all under MIT or Apache licenses.
  • Zero API costs: Because tools run locally, we don't need expensive AI APIs or server infrastructure. That's why we can offer them free forever.
  • Privacy by design: No advertising or tracking-profile cookies. Visits are counted with Google Analytics 4 (IP anonymization on, sets an analytics cookie).

How we make money

Toololis currently shows no ads. If that ever changes, it will be stated here and on the privacy page, and ads will never sit above a tool or block it. We don't sell your data and we don't profile you.

What's coming next

  • More tools — we add 2–5 new tools every month
  • More languages — German, Spanish, French, and more
  • Tool APIs for developers who want to integrate our logic
  • Advanced versions of power-user tools (batch PDF operations, bulk image processing)

Who built this

Toololis is built and maintained by one independent developer, focused on fast, accessible, privacy-respecting web tools. Based in Germany. Reach us via /contact.

Technology stack

  • Astro 4 — static site generator (ships 0 KB JS by default)
  • Tailwind CSS — utility-first styling
  • Cloudflare Pages — global CDN hosting
  • TypeScript — type-safe codebase

Contact & feedback

Found a bug? Want a tool we don't have? Have a suggestion? Visit our Contact page.