How We Test & Review Tools

Every tool published on Blank2Done is built and verified in-house before it ships. This page documents exactly how each tool is tested, so you know what “works” means before you paste anything into it.

1. Functional testing in a real browser

Each tool is exercised in an automated headless-browser harness: we type realistic input, click the primary action button, and verify the output is correct — not just that the page renders. Tools that produce files (PDF, images, QR codes) are checked for valid output bytes, and text tools are checked against known-good fixtures.

2. Privacy verification

Our core promise: your input never leaves the browser tab. For every tool we open the browser DevTools Network panel and confirm zero requests carry your data — all processing is client-side JavaScript. You can repeat this test yourself on any tool page in under a minute.

3. Static builds, no servers

The entire site is a static export served from a CDN. There is no backend that could log, store, or leak what you type. If a tool ever needed a network call to work, it would not be published under the Blank2Done name.

4. Re-testing after changes

When we redesign the site or modify shared components, we re-run the full tool regression sweep before deploying. As of September 2026, all 220 tools on this site have passed their functional tests on the current build. We do not publish placeholder tools: if it is listed here, it works.

5. Corrections

Found a tool that misbehaves? Contact us with the tool URL, your input, and what you expected. Verified bugs are fixed and redeployed, usually within a day.