See what's true. Before you believe it.
EvidenceLens checks videos, articles, podcasts and PDFs against millions of scientific studies — so you can tell facts from opinion.
Know more. Get manipulated less.
Four simple things, for every claim you come across.
Know what the research says
See which claims real studies actually support.
Protect yourself from manipulation
Spot confident claims that aren't backed by evidence.
Understand the context
Learn the limits and caveats behind each claim.
Check the sources
Read the research that the conclusions rest on.
Everyone has something to say. Who do you trust?
We have never had access to so much information. Yet it has never been harder to tell facts from opinion. EvidenceLens gives you a calm, evidence-based second opinion — in seconds.
Paste a link. We do the rest.
It really doesn't get simpler than this.
Paste a link
A video, article, podcast or PDF — anything you want to check.
We analyze it
EvidenceLens reads the content and finds the claims that matter.
You get clear conclusions
Each claim gets a plain-language verdict, with the sources behind it.
See what is actually known.
Every claim gets a clear, color-coded verdict — and you can open the studies behind it.
Supported by research
Backed by strong, consistent scientific evidence.
Treat with caution
Some support, but with important limits or mixed results.
Not confirmed
The evidence does not back this claim.
Not enough data
There isn't enough research to judge it yet.
Every verdict links to the publications it is based on.
This is how it looks
We don't tell you what to think.
We show you what's worth basing your decision on.
Built on real research, not just a confident guess.
Most AI tools answer from general training data. EvidenceLens is built around a library of over 200 million peer-reviewed publications, and matches the claims in your content to the studies that test them.
Generic AI
- Can sound confident without showing its sources.
- May miss the exact claim that was actually made.
- Splits summary, checking and follow-up across different tools.
EvidenceLens
- Starts from the actual content and the claims inside it.
- Checks each claim against a large library of research papers.
- Gives you verdicts, caveats, citations and chat in one place.
Two products, one account
The Chrome extension is purpose-built for YouTube. The mobile app extends the same evidence-aware analysis to any YouTube link, website, or PDF — so you can verify content wherever you find it.
Chrome extension
Works on YouTube videos only
The Chrome extension runs inside Chromium browsers and opens beside the YouTube player. Summarize the video, verify claims, and chat about the transcript without leaving the page.
- Summarize and verify YouTube videos beside the player
- Works in Chrome, Edge, Brave, Opera, and Vivaldi
Mobile app
Verify any YouTube link, website, or PDF
The mobile app extends EvidenceLens beyond YouTube. Paste a link, share content from another app, or open a PDF — and get the same research-backed analysis on the go.
- YouTube videos via URL or the share sheet
- Any website or online article
- PDF research papers, reports, and documents
Both products share the same account, plan, and monthly credits — switch between them anytime.
For everyone who wants to think for themselves.
And everyone who wants to make better decisions, every day.
Start free. Upgrade when you want more evidence.
Every plan includes summaries, claim checks, and chat. Early Bird prices stay locked while the offer is available.
Free
For quick checks and first-time users
- 20 verifications / month
- 50 summaries / month
- 30 chat messages / month
- Evidence taxonomy & credibility score
- Unlimited verifications
Plus
For regular YouTube research sessions
Your rate stays locked while Early Bird lasts
- 300 verifications / month
- Unlimited summaries
- Unlimited chat messages
- Evidence taxonomy & credibility score
- Access to 200M+ papers
Plus Annual
Best value for frequent evidence checks
Your rate stays locked while Early Bird lasts
€3.58/ month
- Everything in Plus
- Billed once annually
- Priority support
- Early access to new features
- Save €29/year vs monthly
- Cancel anytime
- Locked-in pricing
All plans include access to 200M+ indexed papers · Prices in EUR · VAT may apply
Made for people who ask: source?
EvidenceLens helps sharp readers and viewers turn persuasive content into evidence they can inspect.
“I use EvidenceLens for every health-related video I watch. It caught an overstated claim about vitamin D that I would have completely believed otherwise.”
“Being able to instantly see which claims are backed by real papers, and which are not, has changed how I screen sources.”
“Finally, a tool that summarizes the video and then shows which claims actually hold up in the literature.”
Frequently asked questions
The practical details before you install.
EvidenceLens is a fact-checking assistant. You give it a video, article, podcast or PDF, and it finds the key claims, checks them against scientific research, and shows a clear verdict for each one — with links to the studies. It works as a Chrome extension for YouTube and as a mobile app for everything else.
YouTube videos, online articles and news, podcasts, and PDF documents such as research papers or reports. Anything that makes factual or scientific claims is a good fit.
General-purpose AI tools can be useful, but they are not built specifically around YouTube transcripts and research verification. EvidenceLens is designed for the watching workflow: summary first, claim extraction next, then verdicts grounded in an indexed research database with citations and caveats.
Our database contains over 200 million indexed peer-reviewed publications sourced from established academic repositories and indexed on our own infrastructure. This includes papers across health, psychology, environment, education, economics, technology, engineering, and social science.
Yes, no credit card required. You get 20 verifications, 50 summaries, and 30 chat messages per month. When you need more, Plus includes 300 verifications and unlimited summaries and chat.
EvidenceLens extracts claims and matches them against peer-reviewed literature with semantic search. Each claim receives a nuanced verdict such as supported, refuted, overstated, or inconclusive, plus confidence levels and citations so you can review the evidence yourself.
The Chrome extension is built around YouTube and opens beside the player to summarize the video, verify claims, and chat about the transcript. The mobile app handles a wider range of sources: YouTube videos, any website or online article, and PDF documents. Both share the same account, plan, and monthly credits, so you can move between them seamlessly.
Yes. There are no contracts or commitments. You can cancel your Plus subscription from your dashboard, and you will keep access until the end of your billing period.
We do not store video transcripts, web page text, or PDF content. They are processed in real time and discarded. We do not access your YouTube account, browsing history, or personal data beyond what is needed for authentication. See the privacy policy for full details.
Don't let anyone manipulate you.
Check what you watch, read and listen to.
Install EvidenceLens for free and get clear, evidence-based answers in seconds.
Free forever plan · no credit card · Browser extension and mobile app