Add Captions

Add captions on iOS or on Captions on Web. Generate captions with AI, add them manually on mobile, or walk through the web editor flow from upload to export.

iOS

How to add and generate captions

Add automatic captions with AI

To add captions automatically with AI:

1. Import or record your video
2. Select the language that is being spoken in the video
3. Select No Translation or choose the language you’d like to translate to

Add captions manually

To add captions manually:

1. Scroll to a location where there are no captions
2. Tap Add
3. Start typing and Apply

Supported languages for adding and translating captions

You can add captions or translate your video in the following languages:

Afrikaans, Amharic, Arabic, Armenian, Assamese, Asturian, Azerbaijani, Belarusian, Bengali, Bosnian, Bulgarian, Burmese, Cantonese, Catalan, Cebuano, Chichewa, Chinese (simplified), Chinese (traditional), Croatian, Czech, Danish, Dutch, English, Estonian, Filipino (Tagalog), Finnish, French, Fulah, Galician, Ganda, Georgian, German, Greek, Gujarati, Hausa, Hebrew, Hindi, Hinglish, Hungarian, Icelandic, Igbo, Indonesian, Irish, Italian, Japanese, Javanese, Kabuverdianu, Kannada, Kazakh, Khmer, Korean, Kurdish, Kyrgyz, Lao, Latvian, Lingala, Lithuanian, Luo, Luxembourgish, Macedonian, Malay, Malayalam, Maltese, Māori, Marathi, Mongolian, Nepalese, Northern Sotho, Norwegian, Occitan, Odia, Pashto, Persian (Farsi), Polish, Portuguese, Punjabi, Romanian, Russian, Serbian, Shona, Sindhi, Slovak, Slovenian, Somali, Spanish, Swahili, Swedish, Tajik, Tamil, Telugu, Thai, Turkish, Ukrainian, Umbundu, Urdu, Uzbek, Vietnamese, Welsh, Wolof, Xhosa, Zulu

If there are multiple languages being spoken in your video, you can choose “multiple languages”

Frequently asked questions

How to add captions in an additional language?

To add captions for videos that are in multiple languages:

1. Import or record your video
2. Choose Multiple Languages as the spoken language

What are the video duration limits?

Feature	iOS	Desktop	Android
Captions in same language	10 minutes	10 minutes	5 minutes
Captions in another language	5 minutes	5 minutes	5 minutes
Dub to another language	5 minutes	5 minutes	5 minutes

Web

Add professional captions to any video. You start from the Home page, walk through upload and style choices, then create a project you can open to review and refine.

Open Edit from Home

On the Home page, open the menu on your item or entry point, then choose Edit.

Upload your video

Upload your video by dragging and dropping it onto the upload area, or browse and select the file manually. Supported formats are .mp4 and .mov.

Add reference media or links (optional)

You can manually add media such as images and videos to use in the edit. You can also paste links (for example, links to a product page) as reference for editing the video.

Choose an editing style

Open the styles library and select an editing style. Right now the available styles are AI Edit styles. They are premium styles and use more credits than a simple captions-only flow. In the future, the product may support a path that only generates simple captions without AI editing.

Review recommended cuts in the outline

In the Outline section, review recommended cuts. Captions detects pauses such as filler sounds (for example, “um” and “hmm”) and can remove them from both the audio and the outline.

• To keep the original audio and outline without those cuts, click Restore original.
• To undo cuts one at a time, click Revert on each cut you want to keep.

When you are done, click Save.

Captions only (optional)

In the Apply edit style section, click the edit icon to open the panel on the right. If you want captions without other editing elements, open Captions only. Pick a template style from that tab, then click Save.

Create the project

Click Create project to start generation. This step can take a few minutes.

Review and adjust captions

When creation finishes, open the project to review the output.

You can change caption wording and timing at any time. For spelling and text edits, see Edit Spelling.

To change how captions look, click Style in the right sidebar. Changing caption style costs extra credits. Switching to another Captions only style typically costs 3 credits. AI Edit styles are estimated at about 15 credits, depending on the style you pick.

Frequently asked questions

What are the video duration limits?

• Minimum: 4 seconds
• Maximum: 60 seconds

What is the maximum file size?

• Remix feature: 2 GB maximum
• Home screen uploads: 100 MB maximum

What aspect ratio is required?

• Required: 9:16 (vertical/portrait)
• Margin of error: 10% tolerance

What video formats are supported?

• Supported formats: MP4, MOV/QuickTime
• Supported MIME types: video/mp4, video/mov, video/quicktime