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SRT subtitles, generated on your own Mac
Subtitle generators are almost all web services: upload the video, pay by the minute, download an .srt. Lesskeys does the same job locally — transcribe the file on your Mac, then export standard SRT or WebVTT with one click.
How to generate an SRT file on a Mac
Drop the video (or audio) into Lesskeys and let it transcribe locally — then use the SRT or VTT export button on the transcript. You get a standard, timestamped subtitle file that imports into YouTube, video editors, and players. The transcription runs on your Mac's chip, so unpublished footage never touches a server.
Why creators do this locally
Unreleased content stays unreleased. Uploading a rough cut to a subtitle site means your unpublished video sits on someone's server before launch day. Cost: per-minute subtitle services get expensive across a back catalog; Lesskeys is a one-time purchase with no metering, so subtitling every episode you've ever made costs nothing extra. Speed at volume: no upload/download round-trip per file — long videos transcribe locally in minutes on Apple Silicon.
Edit before you export
Subtitles are only as good as the transcript, so fix the transcript first: the synced player jumps to any line so you can check it against the audio, and speaker names can be assigned where that helps. Then export — SRT for editors and YouTube, WebVTT for the web. (Lesskeys generates the subtitle file; styling, positioning, and burning subtitles into the video happen in your editor.)
Three steps
- Drop the video in — MP4, MOV, or plain audio if that's what you have.
- Review the transcript — click any line to hear that moment; correct what needs it.
- Export SRT or VTT — a standard subtitle file, ready for YouTube or your editor.
Pay once. No subscription. · macOS 13+
FAQ
Can I generate SRT subtitles offline on a Mac?
Yes. Lesskeys transcribes the video locally on Apple Silicon and exports standard SRT or WebVTT files — no upload, no internet needed after the one-time model download.
Does the SRT work with YouTube and video editors?
Yes — SRT and WebVTT are the standard subtitle formats; YouTube, Premiere, Final Cut workflows, DaVinci Resolve, and web players all accept them.
Does Lesskeys burn subtitles into the video?
No — it generates the subtitle file. Burning in, styling, and positioning are editor jobs; the SRT/VTT it exports drops straight into those tools.
What does it cost per video?
Nothing per video. Lesskeys is a one-time purchase with unlimited local transcription — no per-minute subtitle pricing.