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You can start a project in Captions using footage you’ve already recorded — a video file, an audio file, or an image. This page covers how to import files on iOS, Web, and Android.
Works on: iOS, Web, and Android

Import a video file

1

Open Captions and tap the + button

From the home screen, tap the + button to start a new project.
2

Select Upload

Choose Upload from the new project options.
3

Choose your file

Browse your Photos library or Files app to select the video you want to edit. Captions supports MP4, MOV, and M4V formats.
4

Your project opens

The video is imported and your project opens in the editor, ready to caption, edit, or apply AI Edit.

Import audio only

If you have a voiceover, podcast clip, or audio recording you want to turn into a captioned video, you can import audio directly. On iOS: Tap +Upload → select an audio file (MP3, M4A, AAC, WAV). Captions creates a project with a waveform background you can style. On Web: Drag and drop an audio file into the upload area or use the upload button to select one.

Import from a URL

On iOS and Web, you can paste a YouTube or other video URL directly to create a project from an existing video — no download required. Tap +Import URL and paste the link.
Use Import URL to pull in podcast episodes, YouTube videos, or social clips to repurpose with captions or AI Shorts.

Supported formats

TypeFormats
VideoMP4, MOV, M4V
AudioMP3, M4A, AAC, WAV

File size and length limits

  • iOS / Android: Up to 60 minutes per file
  • Web: Up to 60 minutes per file
If your file exceeds the limit, trim it to a shorter segment before uploading, or use AI Shorts to extract the highlights after upload.

What’s next?

AI Edit

Apply AI Edit to turn your uploaded footage into a polished, caption-ready video automatically.

Add Captions

Generate captions for your imported video with one tap.

AI Shorts

Extract the best moments from a long video automatically.

Record with Teleprompter

Record directly in Captions instead of importing.
Last modified on April 20, 2026