AI video caption generator

Turn Your Voiceinto CaptionsAutomatically

Upload your video, generate captions synced to speech, customize the style, and export a clip ready to share.

  • 5 Free Exports
  • No Watermark
  • SRT Export

From raw video to ready-to-share captions.

Capgen is an AI video caption generator for Reels, TikTok and YouTube Shorts. Turn video speech into timed subtitles, customize the style, and download a captioned video or an SRT file.

Open the Studio
AUTO CAPTIONS

Auto Captions

Generate timed captions from your video's spoken audio.

Captions synced to speech
WORD-LEVEL TIMING

Word-Level Timing

Highlight words in sync with the speaker.

Light upeveryword as you speak
CAPTION STYLES

Caption Styles

Choose fonts, colors, layouts and caption presets.

DefaultNeonBOLDMarker
ANIMATED CAPTIONS

Animated Captions

Add pop, marker, glow or typewriter motion.

POP!
SRT EXPORT

SRT Export

Download your captions as an SRT file.

captions.srt00:01.200 → 00:03.850 Hello world00:03.850 → 00:06.200 This is Capgen
MULTIPLE ASPECT RATIOS

Multiple Aspect Ratios

Create videos for 9:16, 1:1 and 16:9.

9:161:116:9

From video to finished captions.

01

Upload your video

Choose a video from your device.

02

Generate captions

Select the spoken language and generate synchronized captions.

03

Customize & export

Choose fonts, colors and animation, then export a captioned video or SRT subtitles.

Caption Styles

See how your captions can look.

Compare fonts, word highlights and contrast using presets from the Studio. These are style illustrations, not exported clips.

Default caption style preview
Here's how I made this video.

Default

Apple Minimalist

Bold caption style preview
MAKE EVERY WORD COUNT.

Bold

Versely Bold Impact

Highlight caption style preview
Small changes. Better videos.

Highlight

Tidemark Marker

Neon caption style preview
LET YOUR STORY STAND OUT.

Neon

Versely Cyber Neon

Pop caption style preview
Wait until you see this!

Pop

The Bumblebee

Turn speech into captions automatically.

Upload a video, generate timed captions, then adjust the fonts, colors and layout in one studio. Preview the result before exporting.

  • Automatic transcription
  • Word-level timing
  • Custom caption styles
  • Export-ready videos

Studio illustration. Caption words and timings are not individually editable.

Caption videos for the way you publish

Prepare your own footage for Instagram Reels, TikTok videos or YouTube Shorts. Each guide covers captions inside the video, canvas choice and manual upload.

Browse animated caption styles, learn the SRT subtitle workflow, or explore captioning workflows for creators, podcasters and teams.

Ready to caption
your next video?

Generate timed captions, choose a style and export your video.

Frequently asked questions

Free exports, supported formats and what you can customize.

Yes. Every new account gets 5 free video exports with no watermarks, and re-exporting the same project never costs extra credits.