No API · No upload · No limits
Free AI video detector
Detect AI-generated videos without uploading them. Unlimited checks, no sign-up, and a transparent breakdown of every signal behind the verdict.
- 100% free
- Unlimited checks
- No upload — runs on your device
- No sign-up
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- File & Content Credentials
- Frame sampling
- AI model
- Visual analysis
Verdict
Evidence
File details
No detector is 100% accurate. Treat this as one piece of evidence, not proof. How the score works.
Why this AI video detector is different
Private by design
Your video never leaves your device. That matters when you’re checking something sensitive — a clip sent to you privately, a video of you, or evidence for a story.
Actually unlimited
Most free tiers cap you at 3–5 videos a month because each upload costs them API fees. Our checks run locally, so there’s nothing to cap.
Evidence, not a magic number
You see exactly which signals fired — credentials, camera tags, frame scores — and how much each counted toward the verdict.
Built on open source
We use open models from Hugging Face and the open C2PA standard. The method is documented on our how it works page.
How to use the AI video detector
- Get the file. Download the original if you can, or save/screen-record the clip from the app.
- Drop it in. Drag the file onto the box above, tap “Choose video”, or paste it.
- Read the evidence. Look at which signals fired, not just the percentage. A confirmed Content Credential beats any visual score.
- Use your eyes. Scrub through the frames with our visual checklist and look for the original source.
FAQ
What is the best free AI video detector?
The best free option is one that shows its evidence and doesn’t cap you. IsThisVideoReal is unlimited because it runs on your device, and it combines Content Credentials, file forensics and a visual model instead of a single opaque score.
Why don’t you limit free checks like other tools?
Other detectors pay for a server or API every time you upload. We don’t have that cost — your browser does the work — so there is no reason to limit you.
What’s the maximum file size?
There’s no hard limit. We read only the metadata and 10 sampled frames, so even long, large files work. Very large files (over 1–2 GB) may be slow on phones.
Which formats are supported?
Anything your browser can play: MP4 (H.264), WebM, and MOV. HEVC/H.265 MOV files from iPhones work in Safari and on most Macs; on Windows Chrome you may need to convert them first.