Caption Comet - Local Processing, No Cloud or Subscription
Local AI subtitles for Mac - no cloud, no subscription.
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What is Caption Comet?
Caption Comet is a native macOS app that generates AI subtitles locally on your Mac without cloud uploads or subscriptions. It uses Apple Silicon acceleration to transcribe and process videos directly on your device, then lets you edit, burn, or export subtitles in multiple formats. Designed for creators who need fast, privacy-focused caption generation for both short-form and traditional videos.
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Key Features of Caption Comet
- Local AI transcription (no cloud upload)
- Apple Silicon accelerated processing
- Quick Mode for batch processing
- Project Mode for subtitle editing
- Waveform timeline for precise timing adjustment
- Burn captions into video or export to SRT, VTT, ASS, TXT formats
- Multiple caption style presets (Clean, Minimal, Bold, Social, Karaoke, Progressive, One Word Punch)
- Support for vertical and horizontal video
- Playback proxies for smooth preview
- No subscription required
Who Should Use Caption Comet?
Generate subtitles for short-form social media clips (Reels, TikTok)
Add captions to traditional horizontal videos
Batch process multiple videos with consistent styling
Correct and fine-tune AI-generated captions before export
Burn captions directly into video files
Export subtitle files for video editing workflows
Caption Comet: Pros & Cons
✓Pros
- Runs entirely locally - videos never leave your Mac
- No subscription or account required
- Apple Silicon optimized for fast processing
- Batch processing capability for multiple videos
- Flexible editing with Project Mode when needed
- Multiple export format options
- Pre-built caption style templates included
✕Cons
- Apple Silicon only (M1/M2/M3 Macs required)
- Free mode limited to first 30 seconds of exports
- Free mode includes Caption Comet watermark on burned videos
Frequently Asked Questions about Caption Comet
Does Caption Comet require an internet connection?
No. Caption Comet runs entirely locally on your Mac, so no cloud upload or account is needed.
What Mac models are compatible with Caption Comet?
Caption Comet requires Apple Silicon (M1, M2, M3, or newer) and is available on the Mac App Store.
What subtitle formats can I export?
You can export subtitles as SRT, VTT, ASS, TXT, or as burned captions directly into video.
Can I edit subtitles after they're generated?
Yes. Use Project Mode to correct words, adjust timing word-by-word with the waveform timeline, and fine-tune caption styles before export.
Does Caption Comet work with vertical videos?
Yes. The same workflow supports both short-form vertical clips and traditional horizontal videos.
Tool Details
- Pricing
- Free
- Category
- Ai Video Translator
- Added
- Jul 2026
- Last Updated
- Jul 2026
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