Truthifier

Select a claim anywhere on the web and verify it where you are, with sources and exact quotes.

Truthifier checks one claim at a time, and shows you why. Select a sentence on any web page, right-click, and choose Verify with Truthifier. A side panel opens and shows the answer when the check is done. HOW IT WORKS You pick the sentence yourself. Truthifier never rewrites it for you, and never truncates it. Before anything is sent you see exactly which text is going out, and you can edit it. The server asks several AI models to look for sources, fetches the public web pages they point to, and checks each separate premise against exact quotes from those sources. WHAT YOU GET A result in four parts: a verdict, an explanation, the premises the verdict rests on, and the sources each premise came from, with exact quotes you can look up yourself. The verdict is one of five: Verified, Rejected, Partly true, Insufficient evidence or Needs clarification. The last two are abstentions: either the documentation is missing, or the claim has more than one valid reading. Truthifier says so instead of guessing. That last part is the whole point. A fact-checker that always answers is sometimes confidently wrong. Truthifier is built not to be. WHAT YOU SHOULD KNOW A check usually takes one to two minutes. You can close the panel while it runs; the check continues, and the result is there when you open it again. To offer you sentences to choose from, the extension reads the text of the page you are on. That happens locally, in your browser. What gets sent is only the one sentence you chose, not the page content and not its address. Truthifier finds its own sources.