Add animated, word-by-word subtitles to TikToks, Reels and Shorts. Free AI captions with no sign-up, and your video never leaves your device.
Drop your video here or browse
MP4, MOV or WEBM
Vixo listens to your video and writes perfectly timed captions. Fix a word, pick a style and download, all in about a minute.
Every word is timed automatically, so captions appear exactly when they're spoken.
Your video never leaves your device. There's no upload, no account and no email.
my-video-captioned.mp4
Captions ready
Choose from bold presets made for TikTok, Reels and Shorts, or design your own look with fonts, colors and animations.
Bold highlights, clean subtitle boxes, comic pops and more, each ready to use.
Move captions up or down to keep them clear of faces and each app's buttons.
The active word lights up in a color you choose, the style made popular by top creators.
Names, slang and brand words can be corrected in seconds before you export.
English, Spanish, Hindi, Urdu, Arabic, Portuguese, French, German and many more.
Captions are part of the video itself, so they show on every platform and every player.
Practical tips for captions that people actually read.
A step-by-step guide to adding accurate, good-looking captions to vertical videos, plus the mistakes that make captions hard to read.
Captions aren't only for accessibility. Here's how they help viewers who watch muted, non-native speakers, and your own watch time.
From bold word-by-word highlights to clean subtitle boxes, here are the caption styles that work best for TikTok, Reels and Shorts.
No sign-up, no watermark and no upload. Just open a video and add captions.
0 MB
of your video uploaded
8
ready-made caption styles
Yes. You can caption up to 3 videos a day, each up to 1 minute long, without paying or creating an account. A paid plan is available if you need longer videos or more per day.
Accuracy depends mostly on your audio. Clear speech with little background music usually transcribes very well. Because every line is editable, you can fix anything the AI gets wrong before exporting.
No. Your video never leaves your device. Speech recognition and video export both run inside your browser, so we never receive your files. See our privacy policy for details.
The first time, your browser sets up the caption engine. It keeps it ready afterwards, so your next videos start within seconds.
Recent versions of Chrome, Edge and Safari on desktop and mobile. A laptop or a recent phone gives the fastest results, while very old devices may be slow.
Most common formats work, including MP4, MOV, WEBM and MKV. The download is always an MP4 (H.264), which every social platform accepts.
No. Exports contain only your video and your captions.
Yes. The exported MP4 keeps your original aspect ratio (vertical, square or horizontal) and is ready to upload anywhere.
Start free with 3 videos a day and no account. Upgrade any time for longer videos and more exports.