llm-kb
← Back to products
Productlaunched

AI fact checker for YouTube videos as browser extension and API

PopUpFactCheck is a browser extension (Chrome and Firefox) and API that uses AI to fact-check YouTube videos in real time, including live streams, by analyzing captions. It helps viewers verify claims without leaving the video, with features like navigation via arrow keys and batch report generation.

Visit project ↗
2 engagement·1 source·Sat, Jul 11, 2026, 02:33 AM
The extension displays fact-check bubbles overlaid on YouTube videos, which users can navigate with arrow keys. It supports generating batch reports for entire videos. The tech stack includes an AI model (likely LLM-based) for claim verification, and it is available for free. Traction signals: initial Reddit response, 2 upvotes on the update post.

Entities

PopUpFactCheck(tool)YouTube(company)

Related

ProductSun, Jul 12, 2026, 01:16 PM

Content Chef: browser extension to block AI-generated YouTube videos

Content Chef is a browser extension that lets users filter out AI-generated or otherwise unwanted content from their YouTube feed. It provides customizable filters that can be toggled on or off, giving users control over what they see. The extension addresses the problem of low-quality or unwanted AI content cluttering YouTube recommendations.

6 engagement·1 source·reddit
ProductSun, Jul 12, 2026, 08:32 AM

Chrome extension detects manipulation tactics in political videos in real time

inLie is a Chrome extension that analyzes political YouTube videos (debates, interviews, speeches) as they play, flagging rhetorical manipulation tactics like fear appeals, whataboutism, dodged questions, us-vs-them framing, self-contradictions, and unsourced statistics. It uses an LLM to detect these tactics, but verifies each flag against the transcript to prevent hallucination, showing the verbatim quote and a clickable timestamp. It solves the problem of real-time awareness of manipulation for viewers of political content.

2 engagement·1 source·reddit
ProductSat, Jul 11, 2026, 06:10 PM

YouTube comment analyzer for creators and brands

CrowdOpinio reads every comment on a YouTube channel and generates a report covering sentiment, content ideas, complaints, and sponsorship/revenue signals. It uses LLMs to process large volumes of comments and extract actionable insights for creators, brands vetting creators, investors, or collaborators.

1 engagement·1 source·reddit
ProductSun, Jul 12, 2026, 04:09 AM

AI virality score predictor for short videos

A tool that scores short videos for viral potential before posting, using a model that analyzes faces, motion, and sound. It helps creators optimize content but has blind spots: it cannot evaluate curiosity hooks, captions, or storytelling elements that drive sharing.

3 engagement·1 source·reddit
ProductSun, Jul 12, 2026, 09:58 AM

YouTube watch history analyzer for parents

A tool that analyzes a child's YouTube watch history and generates a 'brainrot risk report' for parents. It uses LLMs to identify patterns like repeat channels, addictive loops, late-night spikes, and content quality, helping parents understand what content shapes their child's feed without relying on screen time alone.

5 engagement·1 source·reddit