AI YouTube video analyzer.
Verdict before you watch.

Flashines is a YouTube video analyzer built into your feed. Click the flash icon under any video and it reads the transcript and gives you the answer, the steps or the verdict in about five seconds. Without opening the video.

Add to Chrome, it is free See how it works

Seats are limited to 50 because of AI usage. No API key needed.

youtube.com
⚡ Flashines
Search + Create
14:02

Is the new 14" MacBook Pro worth it in 2026?

Hardware Unpacked · 214K views

⚡ Flash
8:41

How to set up a home NAS in 8 minutes

Selfhosted Weekly · 63K views

⚡ Flash
22:17

5 things nobody tells you about freelancing

The Quiet Desk · 1.1M views

⚡ Flash
⚡ Flashines ~4-8s ✕
WORTH IT?

Yes, if you edit video.

  • Why yes. The M5 Pro cut his 4K export from 11 to 4 minutes on the same timeline.
  • Why not. For browser and office work he measured no felt difference against the 2023 M3.
MORE DETAIL
  • Numbers. Export 11:02 to 4:10, Lightroom import 2.1x faster, battery 14 h in his test.
  • Skip if you mostly browse, write or run meetings: the 2023 M3 felt identical.
  • Tip from the video: the 24 GB config, not the M5 Max, is the price sweet spot.
Watch video Ask Gemini Show more
~5smedian from click to the finished verdict
30free verdicts a month, no API key needed
0accounts, emails or passwords to create
1 clickno new tab, no paste, no prompt writing

How it works

How the YouTube video analyzer works.

The extension only ever sends the video id, the title and the channel. The transcript fetch and the model call run in the background worker, on the hosted beta or with your own key if you prefer.

01

Click the flash chip

Flashines adds a small ⚡ Flash chip under the byline of every video in the home feed. Nothing else on YouTube moves.

⚡ Flash

02

The transcript gets analyzed

The full transcript goes to a small fast model with an instruction that depends on what the title is actually asking. Flashines analyzes what the video says, not its view count.

03

The answer streams in

A verdict, the steps, or the list, in the language spoken in the video. Then you decide: watch it, or move on.

Worth it?YES

What the analyzer tells you

Every YouTube title makes you curious. Is it worth your time?

“Is it worth it?”

→

Yes, no or depends, plus the two reasons the reviewer actually gave.

“How to do X”

→

The numbered steps, in order, without the intro and the sponsor read.

“5 things you need…”

→

The actual five items. No counting down for eleven minutes.

Anything else

→

A three point gist so you know what the video really covers.

Pricing

Free for the first 50 users.

One plan while Flashines is young. No API key needed in the early stage. If you prefer, bring your own key and the only cost is fractions of a cent per verdict, billed by your provider and never by us.

Founding 50

$0forever, for the first 50 users

  • ✓ Unlimited verdicts on the YouTube home feed
  • ✓ Intent aware output: verdict, steps, list or gist
  • ✓ Optional: bring your own key, it never leaves your browser
  • ✓ Ask Gemini hand off with the video prefilled
  • ✓ Your usage stats stay local, video ids are hashed
  • ✓ Direct line to the maker while we shape v2
Claim a free seat

Seats are limited to 50 because of AI usage. No API key needed.

FAQ

The obvious questions.

What is a YouTube video analyzer?

A YouTube video analyzer is a tool that tells you what a video contains without watching it. Flashines does this with AI: it reads the transcript and returns the verdict, the numbered steps or the key points, right in the YouTube feed.

Does Flashines analyze views, likes or engagement?

No. Creator analytics tools do that. Flashines analyzes the content of the video, so you can decide whether it is worth your time before you click.

Do I have to paste a YouTube URL?

No. The analyzer lives on the YouTube home feed. Every video gets a ⚡ Flash chip; one click and the answer streams in next to the video.

Does it work on every video?

It needs a transcript. Videos without captions in any language cannot be read, and Flashines tells you that instead of guessing. Home feed only in this version.

What language is the answer in?

The language spoken in the video, not the language of the title. Czech video with an English clickbait title gets a Czech verdict.

What does Flashines know about me?

Nothing leaves your machine except the transcript request and the model call, both with your keys. Usage counters are local and video ids are hashed.

Stop paying for videos with your time.

Free for the first 50 users. Two minutes to install.

Add to Chrome