Fire, freely given.
Open-source apps for Mac and Windows that run on your own computer. Free at the core.
Click the fire.
Why Emberline exists
The tools you use every day shouldn't be rented, and your work shouldn't live on someone else's server.
More and more apps charge every month and upload what you make to the cloud. Students feel it most: paying monthly for transcription, notes and study tools, and handing over recordings of their classes to use them.
Emberline builds the alternative. Apps that run on your own computer and keep your files there. The core features are free. If you want more, Pro is a one-time purchase for that app, and it's yours to keep.
Prometheus handed fire to people instead of keeping it for the gods. That's the goal here: share good tools openly. Emberline is run by one college student, and every Pro purchase helps pay for school and keeps new apps coming.
Lecture
Record a class. Get a transcript, your slides lined up with what was said, and flashcards to study from.
Free forever
- Recording
- Transcripts
- Search
- Export
Pro one-time
- Slide sync
- Flashcards and summaries
- Larger, more accurate models
Anything in the free version stays free.
Transcription runs on your computer with a local speech model. Your recordings are never uploaded.
If the limit of the ratio is less than one, the series converges.
Let's try it on n over two to the n.
The ratio simplifies to n plus one, over two n.
That goes to one half, so the series converges.
When does the ratio test show a series converges?
When the limit of |aₙ₊₁ / aₙ| is less than 1.
The Eye
An assistant that looks at your screen when you ask, helps with what you're doing, and remembers context between sessions.
Screenshots and memory stay on your computer. If you connect a cloud AI model, you choose which one and can see exactly what gets sent.
Free core with an optional Pro upgrade. Details before launch.
It follows your cursor. The real one only looks when you ask.
More small tools for Mac and Windows are on the way. Waitlist members hear about them first.
No telemetry. No account. Every line of code is public.
Emberline apps run on your computer and keep your data there. The source for each one is on GitHub, so you can check it yourself.
Read the code on GitHubThe core of every app is free for good. Pro is an optional one-time purchase for each app, never a subscription.
Get the beta first.
- An invite to the Lecture beta before it's public
- Founding-member pricing on Pro
- Early looks at new apps before they're announced
No spam. Unsubscribe anytime. You'll only get email when an app is released or updated.