Free captions, right on your device.
Capline is a video editor for content creators. Automatic captions are generated on your phone with an on-device speech model — free, offline after the one-time model download, with no ads and no account.
What Capline does
-
Import & trim FREE
Pick a video with the system picker and trim it on the timeline with drag handles.
-
On-device captions FREE
Automatic captions with whisper.cpp running on your phone. One-time speech model download (about 78 MB), then captions work offline.
-
Caption editor FREE
Fix wording and timing segment by segment, with a live preview over the video.
-
Export with burned captions FREE
1080p MP4 with the captions burned into the frames, saved straight to your gallery.
-
Caption templates FREE PRO
A set of free caption styles, plus additional Pro templates.
-
Bilingual subtitles PRO
Add a second subtitle language with on-device translation — the text never leaves the phone.
-
Extended export PRO
Choose resolution and frame rate, change playback speed and add background music to the export.
-
Lifetime & subscriptions PRO
Capline Pro as a one-time lifetime purchase or a monthly/yearly subscription, sold through Google Play.
-
AI Cut PRO
One tap finds long silences and filler words; review the proposed cuts and apply the ones you want.
-
Teleprompter FREE
Paste your script, set the speed and read it while you record.
-
Voiceover PRO
Record a voiceover take over the preview and mix it into the exported video.
Free vs Pro
FREE
- Import, timeline and trim
- Unlimited on-device captions
- Caption editing and free templates
- 1080p export with burned captions at source settings
- Teleprompter
PRO
- Pro caption templates
- Bilingual subtitles (on-device translation)
- Extended export: resolution, frame rate, speed, music
- AI Cut and voiceover
- Lifetime one-time purchase or monthly/yearly subscription through Google Play
Legal
- Privacy policy (English)
- Política de privacidad (español)
- Terms of use