Launched 2023 · Verified Oct 15, 2026

Eightify

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Browser extension that turns a YouTube video into a timestamped summary and full transcript

youtube summaryvideo transcriptbrowser extensiontimestampsPaid

Listed on EffectHub · Aug 23, 2026

Web · Chrome extension

Screenshot of the Eightify website — eightify.app as we captured it — our own screenshot, not the vendor’s press image.

Pricing

Pricing model: Paid

Subscription after a 7-day free trial, per the Chrome Web Store listing; no permanent free plan. eightify.app and its pricing page returned 403 to automated fetches today, so no price is confirmed (directories still quote $4.99/month).

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Overview

About Eightify

Eightify is a browser extension that sits beside the YouTube player and produces a short summary, a list of key points with clickable timestamps, and the full transcript of whatever you are watching. It is built for long material — the vendor says videos of up to ten hours — and the focus and format of the key points can be adjusted, which makes it more useful on conference talks, lectures and podcast recordings than on short clips. The extension is published by Rational Expressions Inc. of San Francisco and is sold as a subscription after a 7-day trial, with no standing free tier.

Platforms: Web · Chrome extension
API: Not confirmed
Last verified: Oct 15, 2026

Verified sources

eightify.app and eightify.app/pricing returned HTTP 403 to curl and WebFetch (15 October 2026)eightify.app ↗
Chrome Web Store listing: developer Rational Expressions Inc., 447 Sutter St, San Francisco; 200,000 users; 7-day free trial with in-app purchases; summaries of videos up to 10 hours; version 1.643 updated 14 November 2025 (15 October 2026)chromewebstore.google.com ↗

Fact check

Is Eightify legit?

We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.

Domain registered: Dec 19, 2022 (3 years ago)Registry record (RDAP), registrar Namecheap Inc., looked up Sep 6, 2026
TLS certificate: Issued by Google Trust Services, valid until Jan 8, 2027Seen in our own connection to the site on Oct 15, 2026
Last checked: Oct 15, 2026The site answered
On the market since: 2023The vendor's own material, read by us
Operated by: Rational Expressions Inc., United StatesOur research, card verified Oct 15, 2026

How we collect these records

Editorial verdict

Pros & cons of Eightify

medium confidence

A narrow tool that does one job well: decide whether an hour-long video is worth an hour before you spend it. The timestamped key points are the real feature, because they let you jump straight to the section you actually needed. The catch is that it is subscription-only for a job several free extensions and general assistants now also do.

Pros

Key points come with clickable timestamps, so the summary doubles as navigation
Handles very long recordings rather than capping at a few minutes
Output available in roughly 40 languages, including summarising an English video into another language
Works inline on the YouTube page instead of asking you to paste URLs elsewhere

Cons

No permanent free tier — after the trial it is pay or nothing
Summary quality is bounded by YouTube's auto-captions, which are poor on accented or technical speech
The vendor blocks automated access to its own site, so pricing and terms are hard to verify independently

Best for

Skimming long conference talks, lectures or interviews before committing time
Pulling a rough transcript out of a video for notes or quoting
Watching material in a language you read better than you listen to

Not for

Anyone wanting a free tier — only the trial is free
Video that is visual rather than spoken, since the summary works off the transcript

Watch out: eightify.app answers 403 to non-browser requests, which also means directory listings of its pricing can go stale without anyone noticing — check the price in the extension before subscribing.

#2inYouTube Tools· of 30 tools, ranked by rating and popularity

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