FREE ONLINE TOOL

Fact Anchor Checker

Compare claims against supplied evidence and identify what is supported, partially supported or not found.

No account requiredFocused workflowFree to use
WHAT IT DOES

A quick evidence-comparison pass when you want to see whether statements are anchored in text you provide.

USE 1

Break an answer into individual claims

Open the workspace when this is the task you need to finish.

USE 2

Compare claim wording and numbers with supplied evidence

Open the workspace when this is the task you need to finish.

USE 3

Flag claims as supported, partially supported or not found

Open the workspace when this is the task you need to finish.

HOW TO USE IT

Three steps from input to result.

STEP 1

Paste the claims or AI-generated answer

STEP 2

Paste the evidence you want those claims compared against

STEP 3

Run the check and review each claim alongside its status

GOOD TO KNOW

Clear expectations before you use it.

Does this independently verify whether a claim is true?

No. It compares claims with the evidence you supply. It is not an independent fact-checking service or definitive hallucination detector.

What does “Not found” mean?

It means the checker did not find enough textual support in the supplied evidence under its matching rules; it does not by itself prove the claim is false.