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Transcribe lectures on your Mac

Turn recorded lectures, seminars, and study sessions into searchable text on your Mac — offline, with no subscription and no per-minute fees. Record it once, read it, search it, and dictate your notes and essays too.

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100%on-device — audio never uploaded
Pay onceno subscription
99languages, auto-detected
macOS 13+Apple Silicon (M1+)
Lesskeys recordings library on macOS listing lectures and study recordings with transcripts, stored locally
Every lecture and its transcript in one local library on your Mac.

Can I transcribe a lecture offline on a Mac?

Yes. Record a lecture (or drop in one you already have) and Lesskeys transcribes it on your Mac's GPU — no upload, no account, and no per-minute charge. Because it's local, you can transcribe a whole semester of recordings without a recurring bill, and nothing you record leaves your laptop.

Turn lectures into notes you can actually search

A two-hour recording is hard to revise from. A transcript makes it searchable: jump to the exact moment a term was defined with the transcript-synced player, and for seminars and group work, automatic speaker labels tell you who said what. Multilingual course? 99 languages with auto-detect, all on-device.

Dictate your notes and essays

The same app does system-wide dictation: press a hotkey in any app — your notes doc, an email to a professor, an essay draft — and just talk. Faster than typing, and it never leaves your Mac.

A working setup for the semester

  1. Record or import — capture a lecture on your Mac, or drop in an audio/video file you already have.
  2. Transcribe on-device — each recording is transcribed (and speaker-labeled for seminars) locally, so a whole term costs nothing extra to process.
  3. Search and revise — use the synced player to re-listen to any point, and export a TXT into your notes.
  4. Dictate the write-up — draft notes and essays by voice with the global hotkey.
Download on the Mac App Store

Pay once. No subscription. · macOS 13+

Related

How local transcription works → Speaker diarization → For researchers →

FAQ

Can students transcribe lectures offline on a Mac?

Yes. Lesskeys transcribes recorded lectures entirely on your Mac, offline, with no upload and no per-minute cost — so a full semester of recordings is free to process.

Is it a subscription?

No. Lesskeys is a one-time purchase on the Mac App Store, with no monthly fee.

Can I transcribe a lecture I already recorded?

Yes. Import an existing audio or video file and Lesskeys transcribes it locally, with speaker labels for multi-person seminars.