Web app
Take timestamped notes while you watch, organize videos into playlists and feeds, reopen your library on any device where you sign in, and unsubscribe from YouTube channels in bulk.
Your learning workspace for YouTube
Don't just watch. Keep what you learn.
Capture timestamped notes as you watch, turn key moments into study cards, and return to the exact moment behind every idea.
For people who want to remember what they watch
Web app
Take timestamped notes while you watch, organize videos into playlists and feeds, reopen your library on any device where you sign in, and unsubscribe from YouTube channels in bulk.
Chrome extension
Set playback speed on supported HTML5 video sites, bookmark YouTube moments with local notes, and use YouTube player tools such as A–B loops. No sign-in needed.
Transcripts & AI summaries
Read a video’s transcript when YouTube captions are available. AI summaries use your own OpenRouter or Cerebras key, run only when you ask, and are part of the Pro plan.
Study cards
Write a question and answer at any moment, review it with spaced repetition and replay its passage. The Free plan includes 50 cards, 10 per video.
Inside the web app
Your video feed and the player, side by side with your notes
The gap between watching and learning
The useful part of a video is easy to lose.
You understand an idea while the video is playing. Then the tab closes, the timestamp disappears, and the note you saved elsewhere no longer explains why that moment mattered.
More content is not the answer. A reliable way back to the right idea is.
One repeatable workflow
Choose. Capture. Return.
ReplayGlows keeps the path from video to idea intact, so every session leaves something useful behind.
Choose the next video with purpose
Bring the videos worth your attention into playlists and focused feeds built around your goals.
Capture the idea while it is clear
Write a note as you watch. ReplayGlows keeps it tied to the moment that gives it meaning.
Return without retracing your steps
Open the saved note and jump back to the relevant passage instead of searching the timeline again.
The difference is the context
A useful note should lead you straight back to the idea.
ReplayGlows keeps the note, video, and exact moment together. You don't have to remember where the explanation was—or scrub through the timeline to find it again.
Example note
This is where the concept becomes practical
The right moment, saved
Open the note to return where the useful explanation begins.
The source stays visible
You know which video and learning topic the idea belongs to.
Ready for review
Return later without rebuilding the trail from scratch.
Watch, capture, remember
Turn a key moment into something you can recall.
Add a question and answer at the moment that matters, then review it later with spaced repetition and replay the exact passage behind it.
Mark the moment
Create a card at the current point in any YouTube video. Each card keeps its passage, from about 20 seconds before to 10 seconds after.
Write the question and answer
Write them yourself, or let AI draft them from the transcript with your own OpenRouter or Cerebras key. AI drafts are part of the Pro plan.
Review what is due
Due cards come back on a spaced schedule. Reveal the answer, replay the source passage, then grade it Again, Hard, Good or Easy.
The ReplayGlows Chrome extension
Take control of the videos in your browser, too.
On YouTube, block the channels, Shorts and comments you never want to see, return to useful moments with timestamped notes, and sort playlists and subscriptions. On supported websites, choose a shared speed, pin a tab to its own pace and repeat a passage with an A–B loop. With a ReplayGlows account, turn a moment into a study card.
- Shared speed and pinned tabs
- Temporary A–B loops
- YouTube filters, notes and tools
- Study cards (account required)
Publication on the Chrome Web Store is in progress. Bookmarks and notes stay in your browser; study cards require a ReplayGlows account.
One learning path, not two disconnected tools
YouTube for discovery. ReplayGlows for continuity.
YouTube helps you find and play the video. A separate notes app captures text. ReplayGlows connects both parts of the learning process.
YouTube + a notes app
- Save the video in one place and the notes in another
- Type a timestamp into every useful note
- Scrub the timeline to find the explanation again
- Follow whatever the recommendation feed serves next
ReplayGlows
- Keep the video and its notes together
- Save the note at the moment it matters
- Jump back to the relevant passage
- Continue through the videos you chose
Keep learning from the creators and videos you already value. Give every useful moment somewhere you can find it again.
Free to start. Pro when you need more.
Start with Free. Move to Pro for higher limits, AI drafts and note export.
Free
Perfect for getting started
$0
- Up to 10 videos
- 50 notes per video
- 3 playlists
- 50 study cards (10 per video)
Pro
For serious learners
$8/month or $72/year
- Up to 100 videos
- 500 notes per video
- 20 playlists
- 2,000 study cards
- AI study card drafts
- AI summaries
- Note export
Don't let your next useful video disappear into your history.
Start free, capture the first idea worth keeping, and know exactly where to find its context later.
What changes
Less searching. More continuity.
When videos, notes, and exact moments share the same context, every session becomes easier to resume—and more useful later.
Your queue has a purpose
Keep the videos you chose for a topic or goal separate from the endless recommendation stream.
Every note keeps its source
The video and exact moment remain attached, so your words still make sense later.
Past learning stays useful
Return to saved videos and ideas without relying on memory or scattered browser tabs.
You resume without starting over
Pick up the learning trail you already organized, even after an interruption.
Made for students who learn from YouTube lectures, teachers preparing video lessons and researchers who cite video sources.
Inside ReplayGlows
Six essentials. One connected learning workflow.
Timestamped Notes
Capture a thought while it is fresh. Open it later at the relevant moment in the video.
Note + contextLearning Playlists
Group videos around a topic, project, or goal instead of leaving useful links scattered.
Video + goalFocused Feeds
Choose which playlists, channels, or subscriptions shape the view you open.
Sources you chooseFast Retrieval
Return to saved notes and videos without depending on YouTube history or memory.
Find it, don't huntIntentional Viewing
Build a learning queue around your priorities and move through it at your pace.
Your queue, your paceViewing Continuity
Keep your videos, playlists, feeds, and notes inside one coherent workflow.
Resume with contextA calmer way to learn
Let your goals choose the next video.
Build a learning path from the videos you selected—not from whatever is most likely to keep you watching.
Everywhere you learn
One account. Every screen.
Web, browser, desktop and mobile share the same library. Start a note on one surface and pick it up on the next.
Web app
Your full library in the browser: videos, playlists, focused feeds, timestamped notes and study cards, on any device where you sign in.
Chrome extension
Publication on the Chrome Web Store in progress. Shared playback speed, A–B loops, YouTube bookmarks and notes, and a Card button to save a moment to your account.
Native apps
Desktop and mobile apps built for background playback and watching anywhere. Your queue follows you off the browser.
Cloud sync
Notes and study cards saved to your account are ready wherever you open ReplayGlows next. Extension bookmarks stay in your browser.
One video is enough to start.
Open ReplayGlows, choose what you want to learn, and keep every useful moment connected to its source.
Start for freeStart with the Free plan.