How we build and test our tools

What runs where, how every release is checked, and how we keep results and guides accurate.

ToolsForAnyone is a free online toolbox. Most tools run entirely in your web browser using established open-source engines, every release passes an automated test suite before it goes live, and every page shows when it was last updated.

Where your data is processed

  • PDF, Office, image and ZIP tools run in your browser. They use open-source libraries such as PDF.js and pdf-lib (PDF), docx, jsPDF and PptxGenJS (Office documents), zip.js (ZIP archives), UTIF (TIFF) and heic2any (HEIC photos). Your files are not uploaded to us.
  • Online compilers run WebAssembly builds of real compilers and interpreters in your browser, including Clang for C and C++, Pyodide for Python, webR for R, sql.js for SQL, ruby.wasm, SWI-Prolog and Lua.
  • AI detectors run their analysis in your browser, using Transformers.js for the language model and statistical checks for the rest; text and images are not sent to an AI service.
  • Network and website tools must ask the internet: they query public DNS-over-HTTPS resolvers, the domain and IP registries through RDAP, and an IP geolocation provider, and show you the answers.
  • Collaborative editor and Team Quiz need a server to connect people; what they store, and for how long, is described in the privacy policy.

How every release is tested

  1. Automated tests. A test suite covering page rendering, structured data, sitemaps, redirects, APIs, rate limits and the interactive features must pass before any change is deployed.
  2. Site-wide checks. Every page listed in the sitemap is crawled to check titles, descriptions, headings, canonical links, language alternates, structured data and internal links.
  3. Phones first. Pages are opened at phone width to catch layouts that scroll sideways and script errors, and new tools are checked in light and dark mode.
  4. Real use. New tools are run end to end in a browser with sample inputs in the supported formats before release, and interactive features such as the quiz are played through on the live site after deployment.

Accuracy and honest limits

  • Results that are estimates are labelled as estimates: IP locations are approximate, and an AI-detection score is a signal, not proof of who wrote a text.
  • Guides explain how things work in plain English and link to the tools that let you check for yourself. When a claim depends on a standard (for example an RFC) or a vendor's documentation, that is the source we follow.
  • Every tool and guide shows an "Updated" date, which changes only when the page itself changes.
  • Found a mistake? Tell us and we will correct it.

Languages

The interface is available in 10 languages. Translations are produced with AI assistance and checked automatically so that numbers, placeholders and links stay intact and titles fit search results. If a translation reads oddly, please let us know.

How the site is funded

The tools are free and need no account. The site is paid for by advertising (Google AdSense), shown only with the consent required in your region. Advertising never changes a tool's results, and we do not sell personal data. We do not show ads on screens where you tap quickly, such as the quiz player, to avoid accidental clicks.

Frequently asked questions

Are my files really not uploaded?

For the PDF, Office, image, ZIP, AI-detection and compiler tools, yes: the processing code runs inside your browser tab. You can check it yourself in your browser's developer tools: the Network tab shows the page loading its code, but no upload of your file when you process it.

Who runs ToolsForAnyone?

ToolsForAnyone is an independent website. You can reach the team through the contact form; read more on the About page.

How do I report a wrong result?

Use the contact form with the page address, what you entered and what you expected. Please do not attach confidential files.

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