Using Videos in Mobile Messages (Coming Soon)
Estimated 2 minute read
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Updated Jan 12, 2026, 11:11 AM EST
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This article provides an overview of how to manage and send video content within your mobile messaging channels, including WhatsApp, RCS, MMS, and Push.
The Media LibraryThe Media Library
To better accommodate video content, the "Images & brand" section of Klaviyo has been renamed to Media & brand.
Uploading and Managing VideosUploading and Managing Videos
You can now upload MP4 and MPEG files directly to your library.
- File Size Limit: Individual video uploads are capped at 16MB.
- Organization: You can use the new File type filter to toggle between viewing images (PNG, JPG, GIF) and videos (MP4, MPEG).
- Thumbnails: Klaviyo automatically generates a thumbnail for uploaded videos.
- Clicking a thumbnail in the library opens a preview tab with full playback controls.
Adding Videos to Mobile Messages
Adding Videos to Mobile Messages
You can attach videos to messages within the editor for WhatsApp, RCS, MMS, and Push notifications. The workflow is identical to adding images: browse the Media Library or upload a file directly from the editor.
Channel-Specific RequirementsChannel-Specific Requirements
| Channel | File Types Supported | File Sizes Supported |
| Supports MP4 only; MPEG files will appear disabled in the library. | Video files attached cannot exceed 16MB. | |
| RCS | Supports MP4 and MPEG for rich cards. | Video files attached cannot exceed 16MB. The total media file size across all cards in an RCS message cannot exceed 100MB. |
| MMS | Supports MP4 and MPEG. | Video files attached cannot exceed 16MB. Video files greater than 600KB can be attached to an MMS, however Klaviyo does not recommend this. |
| Push | Videos and GIFs are only supported on iOS devices; these will be skipped for Android recipients. | Video files attached cannot exceed 16MB. |
Important Considerations
Important Considerations
- MMS File Sizes: If a video in an MMS exceeds 600KB, a warning banner will appear in the editor. Larger files may be subject to carrier limitations or compression.
- Email Editor: Videos are not supported in the email editor. If you access the Media Library from an email template, videos will appear in a disabled state.
- Image Remix: You cannot use videos with the Image Remix tool.
- Compression: Videos are currently exempt from Klaviyo’s automatic image compression settings and will be handled similarly to GIFs.
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