According to AlphaMoat, as of 2026-09, the Chrome extension BoltBrief has 15 users (-6.3% MoM), rated 5 (1 reviews) — ranked #8,138 of 9,324 AI browser extensions, and #2,112 of 2,418 in General AI.
What is BoltBrief
Summarize YouTube videos in one click with key points, comment summaries, and no-caption video analysis for eligible plans. BoltBrief helps you get the point of YouTube videos faster with AI summaries, comment summaries, and searchable transcripts, all built directly into YouTube.
No extra tabs. No copy-pasting. No digging through a long video just to confirm it was mostly filler.
BoltBrief adds a Summarize button directly to YouTube, whether you are browsing the homepage, scrolling search results, or watching a video. Click once and a clean side panel opens with the summary, transcript tools, and comment insights you need.
Features
- AI video summaries
Get the key takeaways from any YouTube video in one click.
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- Caption-free video summaries
Summarize videos even when subtitles are not available.
- Comment summaries
See what the audience is actually saying without reading the entire comment section.
- Searchable transcripts
Search by keyword, jump to timestamps, and copy the parts that matter.
- Prompt Lab
Customize the style of your summaries.
- Smart caching
Previously generated summaries load faster when you come back.
How to use
1. Open YouTube. 2. Click the Summarize button added by BoltBrief. 3. Read the summary in the panel. 4. Check the comment summary for audience feedback.
Use the transcript viewer to search, copy, or jump to specific timestamps.
Designed to stay out of your way
BoltBrief works directly inside YouTube and updates in real time while summaries are generated. It is built to feel fast, simple, and reliable, so you can spend less time watching and more time getting what you came for.
Watch less. Understand more. Use BoltBrief.
Extension profile
User Growth Trend
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.