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Fact-Check

Know what's true — with the sources to prove it.

Select any claim, or point it at a page or video. Get a 1–10 truth score cross-checked by two independent AIs, with real, linkable sources — and see the reasoning behind the number.

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Free tier included · it only checks when you ask

How it works

You trigger it. It does the work. You read the evidence.

1

Select the claim

Highlight a sentence on any page — or point it at a whole page or a video.

2

Right-click → verify

Two AIs search real sources and cross-check the claim. Nothing runs until you ask.

3

Read the full picture

A 1–10 score, the finding in your language, sources, and a "Why this score" reasoning trail.

More than a number

A verification tool that shows its work — and keeps you in control.

🤖

Dual-AI cross-check Pro

Two independent models verify each claim. You see when they agree — and when they don't.

🧭

Why this score

The reasoning trail behind the number — what supports it, what undermines it, what's unresolved.

↻

Re-check, different sources

Not convinced? Re-run the check against an independent source set, on demand.

🌐

Full Spectrum Pro

Steelmanned counter-views, who holds them, open questions and non-mainstream sources — evidence-based.

📚

Proof Library Pro

A private, tamper-proof archive of every verification — claim, verdict, sources, date.

🔒

Privacy-first

Only the text you submit is checked; PII is stripped locally first. No tracking, no background activity.

For high-stakes work

Built to support — not replace — professional judgment.

Featurewyper.ioTypical fact-check tools
Two independent AIs cross-check✓Single source/model
Reasoning trail behind the score✓Score only
Re-check against alternate sources✓—
Counter-views & open questions✓ Pro—
Tamper-proof proof archive✓ Pro—
Local PII redaction before sending✓Rare

Frequently asked

What does Fact-Check do with my data?
Only the text you explicitly submit is sent to wyper.io's backend to verify it, and personal data (emails, phone numbers, card numbers) is stripped locally first. Nothing is sold, tracked or profiled, and nothing runs in the background.
How is the 1–10 truth score decided?
Two independent AIs cross-check the claim against real web sources. You see the sources, whether the AIs agree, and a "Why this score" reasoning trail behind the number.
Can it check videos?
Yes. It reads the spoken words (captions) on YouTube and other platforms where captions are available.
What language does it answer in?
It reads the source in its own language but always returns the verdict in your browser's language, correctly handling local calendars and conventions.
Is it a replacement for professional judgment?
No. It is a verification and research tool that supports your judgment with sourced evidence; it does not replace it.
Ready?

Stop guessing. Start verifying.

Free tier included. One key unlocks every wyper.io tool.

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