CapCut auto captions not working: causes and fixes

No captions appear or the button does nothing

CapCut's help page on auto captions that don't work names five causes: unclear audio or background noise, an unsupported or wrong language setting, a weak internet connection, a muted or missing audio track, and an outdated version. The first two take seconds to rule out, so start there.

1. Play the clip you want captioned. If it's muted or the track is empty, CapCut has nothing to recognize.
2. Open Auto Captions and set the language to the one spoken in the clip. A wrong choice can return no captions or a garbled transcript. If your language isn't in the list, skip to the last section.
3. Check your connection. CapCut lists a weak one as a cause and tells desktop users to check it, then restart the app.
4. Reset the app. In the web editor, refresh the page and use Chrome or Edge. On a phone, update CapCut from the App Store or Google Play.

In the web editor and the desktop app, the path is Captions → Auto Captions, then pick a language and click Generate. On mobile, tap Captions in the bottom menu, then choose a language and template. Other CapCut help pages call the same panel Text → Auto Captions, so look under both tabs if one lacks the button.

Stuck at 45%, 99% or any other number

CapCut has no help page for a stall at 45%. Its page on recognition stuck at 99% is the nearest official one, and every check on it costs nothing to try.

In the web editor, don't refresh or leave the page, because that cancels the job. Use Chrome or Edge at 100% zoom with ad blockers off, and give it 5 to 10 minutes, since CapCut says server queues can slow things down at busy hours. If it's still stuck, try another browser or a private window and shorten the clip. CapCut recommends keeping web uploads to about 15 minutes.

In the desktop app, wait 3 to 10 minutes and open Task Manager (Windows) or Activity Monitor (Mac) to see whether the machine is short on resources. Then quit and reopen CapCut. The page says the app keeps intermediate results. Update to the current version before you try again.

On mobile, wait 2 to 5 minutes without switching apps, on stable Wi-Fi or mobile data. If nothing moves, force-close CapCut, reopen the project and use Split to cut the video into pieces of 10 minutes or less. CapCut says videos over 15 minutes often hit timeouts or memory limits, and it tells you to avoid music-heavy or noisy audio.

Wrong language or too many mistakes

If the captions came out in the wrong language, delete them and run Auto Captions again with the right language selected. CapCut's page on inaccurate auto captions gives the same remedy for poor results in general: delete, then generate again. If the captions that are missing or wrong are on Instagram instead, our guide to fixing missing or wrong Instagram captions covers that.

When the language is right and the words are still off, CapCut blames background noise, accents, fast speech and low audio quality. Remove background music before you generate, and avoid clips where people talk over each other. Then fix the rest by hand:

• Web editor: open Edit captions in the right panel and correct the text. Split a badly cut caption with the scissors icon or the B key.
• Desktop app: double-click a caption block or right-click it and choose Edit Captions. Split at a pause with Ctrl+B on Windows or Cmd+B on Mac.
• Mobile: select the subtitle clips, tap Edit captions at the bottom and tap a line to change it. The scissors icon splits long sentences.

Style the captions before you edit the text. CapCut's page on Apply to all captions failing says captions you pasted or typed by hand drop out of that setting. Its last-resort fix is to delete every caption, run Auto Captions again and apply the styling first.

A Pro prompt when you export

CapCut's page on Pro prompts for Standard users says you're asked to join Pro when something in the project is Pro-only. It gives auto captions as one example of a feature that can include Pro-only functionality. The fix it gives: remove anything marked with a Pro icon, or swap in a free alternative, before you export. CapCut presents the prompt as a way to try Pro features before deciding to upgrade.

Neither that page nor the auto-captions page gives a free caption quota or a list of Pro-only caption styles. The thing to check is the Pro icon on the captions, fonts, effects or other items in your own timeline.

When it still fails: make the SRT in another app

CapCut can import a subtitle file, which lets you skip its recognizer. The page on importing subtitles says it takes SRT and TXT files saved as UTF-8, with one limit per platform:

• Web editor: open the Captions tab on the left toolbar and choose Upload caption file. Only SRT works here. Files of 1,000+ lines can process slowly.
• Desktop app: choose Captions → Add Captions → Import file and pick the .srt or .txt file. A TXT file has to follow the SRT layout with timecodes.
• Mobile: there is no direct import. Import on the desktop app or the web editor first.

To make the file, transcribe the audio in a different app and export SRT. Our guides to MacWhisper and Descript cover transcribing a recording in each, so look for SRT among the export formats. If a site wants VTT instead, you can convert an SRT file to VTT in a couple of steps. An SRT's timecodes belong to the file it was made from. Transcribe the clip as it sits on your timeline, and if you cut it afterwards, expect to retime the captions.

Imported captions are ordinary text clips. In the desktop app you can change fonts, colors, position and animation from the right panel, but Apply to all captions, the button meant for auto-generated subtitles, won't reach them. To decide whether captions should be part of the picture or stay a separate track, read about choosing between open and closed captions.