Make every word count.
Capzax turns speech into clean, perfectly timed captions. Write them on your phone or with cloud AI, style them in a tap and export a video that is ready to post.
Everything you need to caption well
Fast to start, easy to fine-tune, and built for the way people really make short videos.
Automatic captions
Pick a video and get timed captions word by word. Fix any word with a tap.
Private by design
On-phone mode works offline and never uploads anything. Your video never reaches our servers.
Many languages
Languages like English work well right on your phone, with no internet. Others, like Persian, give their best results with Cloud AI. We are always adding languages and improving quality.
Ready-made styles
A dozen looks, from clean to bold to playful. Pick one, then change any detail: font, colours, frame, highlight.
Text anywhere
Add titles and notes, drag them where you want, choose when they appear and give them a simple animation.
Canvas & export
Original, square, 4:5, 9:16 or 16:9, with fit or fill. Export a finished video with the captions burned in.
From video to captions in three steps
Pick a video
Choose a clip from your gallery. Newest first, or sort by size.
Choose how to caption
Type them yourself, write them on your phone, or use Cloud AI for the highest accuracy.
Style and export
Pick a look, adjust the details, preview full screen and export.
Two ways to write captions
Use whichever fits the moment. You can switch any time.
On your phone
Private and offline. No credits used. Languages such as English work very well on your phone with no internet connection. Quality varies by language, so we show you what to expect before you start.
Cloud AI
Better results for languages that are harder to do on a phone, such as Persian. Only the audio of the video is sent to a speech provider to be transcribed.
Your videos stay yours
- Videos, captions and projects are saved on your phone only.
- We never receive your video. In Cloud AI mode only the audio goes to the speech provider, straight from your phone.
- No ads and no tracking cookies on this website.
Simple plans
Start free. Upgrade when you need more. Prices will be announced at launch.
Free
Type your captions yourself and export your video with a small Capzax mark.
- Manual captions
- All styles
- Canvas & text
Standard
Unlimited on-phone captions plus a monthly allowance of Cloud AI captions.
- Unlimited on-phone AI
- Monthly Cloud AI
- No Capzax mark
Pro
Everything in Standard with more Cloud AI, using credits when you need them.
- Cloud AI credits
- Priority features
- No Capzax mark
Plan details may change before launch.
Be among the first to try Capzax
Capzax is coming to Android first, with iPhone to follow. Tell us you are interested and we will write to you when early access opens.