CapCut's help center lists five video formats as commonly supported: MP4, MOV, AVI, MKV, and M4V. That list ships with three qualifiers printed right next to it, and it is not the same list CapCut's own product pages advertise.
There is a mundane reason almost nobody quotes this table accurately: CapCut publishes it as a picture. In the help article "Why Can't I Import MP4 and JPG Files?", the section headed "Supported File Formats" contains no text list at all — just an image of a table. Search engines can't read an image, so most write-ups about CapCut's formats are quietly working from the marketing pages instead. Below is that table transcribed, cell for cell.
The formats, at a glance
The header in CapCut's image reads "Common Supported formats" — not "Supported formats". Hold on to that word.
| Media type | Formats listed in the help center table |
|---|---|
| Video | MP4, MOV, AVI, MKV, M4V |
| Image | JPG / JPEG, PNG, BMP, WebP, GIF |
| Audio | MP3, AAC, WAV, M4A, FLAC |
Two cells carry parentheses in the original, and both change the meaning:
- GIF is annotated "can be imported as video clips" — it arrives on the timeline as footage, not as a still.
- FLAC is annotated "supported in some versions", which is a weaker claim than the rest of the audio row.
The paragraph sitting under the image adds the rest of the fine print: "CapCut mainly supports the following file formats. Availability may vary depending on your device, operating system, and CapCut version. We recommend keeping CapCut updated to the latest version to ensure the best compatibility."
Read together, that is three hedges in one short section: common formats, availability that varies by device, OS and app version, and a recommendation to stay on the latest build. A format on this list isn't guaranteed on your install, and the table never claims to be a complete whitelist.
What's missing from the video row
No WebM. No FLV, WMV, 3GP or MPEG either.
This is where CapCut's site disagrees with itself. The product page for CapCut's online video converter says: "CapCut's supported files as an input include 3GP, FLV, MP4, M4V, MKV, AVI, WMV, WEBM, and more." Another FAQ on that same page says: "It supports 1000+ formats including MP4, MOV, and WebM while maintaining original quality." The free video compressor page says CapCut "supports all these major formats including 3GP, MPEG, WMV, and FLV, allowing smooth importing, editing, and exporting across different devices and platforms."
Those are product pages for CapCut's browser-based converter and compressor tools; the table above is the help center describing imports into the editor. Both live on capcut.com and they list different things. Practical stance: treat the help center's five as the reliable floor, and if you need WebM or another format from the product-page list, convert first rather than betting an afternoon on it. Converting a WebM to MP4 takes seconds and removes the question entirely.
Why a "supported" format still fails to import
The format table only describes containers — the .mp4, .mov, .mkv part of the filename. CapCut is explicit that this isn't the whole story: "CapCut supports a range of common video and image formats, but some formats or encodings are not supported at the moment. Even if your file is labeled as MP4 or JPG, its actual format may not match the extension, and therefore cannot be recognized by CapCut."
The word doing the work there is encodings. CapCut is saying the container can be on the list while the stream inside it isn't recognised — which is exactly the "but it's an MP4!" complaint. CapCut's help center doesn't name a single specific codec anywhere in that article, so nobody can tell you which encodings are accepted; check the official documentation if you need a definitive answer for a specific file.
The related trap gets its own heading in the same article: "Simply renaming a file's extension (for example, changing another format to '.mp4' or '.jpg') does not change the actual file format. As a result, the file may still fail to import into CapCut." Renaming is not converting. The bytes have to be rewritten.
What to do when a file won't import
CapCut's own fix, quoted from the same help article, is three steps:
- "Use a trusted third-party transcoding or conversion tool."
- "Convert the video or image into a format supported by CapCut."
- "Import the converted file into your project and continue editing."
Step 2 means one of the five in the video row. MP4 is the safest target — CapCut's article on videos not showing up in the editor gives the same advice for PC, telling you to "Reimport the video file or convert it to a common format, such as MP4."
If your source is a QuickTime file off an iPhone or a Mac screen recording, that conversion is the common case, and it doesn't need an install:
Try it right here
Runs in your browser. Your file is not uploaded anywhere.
This runs inside your browser tab — the file is read from disk, remuxed or re-encoded locally, and handed back. Nothing is uploaded, which matters when the footage is a client's or your own unreleased work. The rest of the converters are in the Clapr tools directory.
Gotchas the format table doesn't cover
Audio can be missing even when the video imports. CapCut lists two separate causes: "Some imported videos may not contain audio, especially screen recordings or compressed files", and "Certain audio formats may not be fully compatible, leading to playback failure." The second one is a format problem wearing a playback costume.
Subtitle files are a different list. CapCut states it "supports importing external subtitle files—primarily in SRT (.srt) or TXT (.txt) format", and that "subtitle import functionality is only available on CapCut Desktop and CapCut Web. The Mobile App does not support direct subtitle file import as of 2026." On Web the rule tightens further: "TXT files are not supported on Web—only SRT."
Project files from other editors are not importable at all. CapCut says plainly: "Currently, CapCut does not support direct importing or exporting of project files from third-party editing software, including Adobe Premiere Pro." Its suggested path is to "Export your sequence as a standard, high-quality video file (e.g., MP4, MOV, or AVI)" and then import that render.
The order you import in changes your output. This one has nothing to do with formats and catches people anyway. In the "Check project settings" step of its mobile-app guidance for blurry imported video, CapCut states that "CapCut automatically sets the timeline resolution to match your first imported clip's resolution", and that "If you later add higher-res clips, the timeline won't upscale—so start with your highest-resolution clip." So in the mobile app, if the first thing you dropped in was a 1080p phone clip, adding 4K footage afterwards will not raise the project past what that first file set. CapCut states this for mobile only; check the official documentation for how desktop and web behave.
There is no published size ceiling. CapCut's help center doesn't state a maximum import file size anywhere. If you're weighing whether a huge file is the problem, see our notes on CapCut file size limits — and check the official documentation before treating any number you read elsewhere as CapCut's.
FAQ
Does CapCut support WebM? The help center's format table does not list WebM; CapCut's online converter product page does. The two official pages disagree, so there's no single official answer. Converting to MP4 first sidesteps the question.
Why won't my MP4 import into CapCut? Because the extension and the actual contents can differ. CapCut states that "some formats or encodings are not supported" and that a file "labeled as MP4" may not match its extension. Re-encoding it to a genuine MP4 is the fix CapCut itself recommends.
Can CapCut import MKV and AVI files? Both appear in the help center's video row, alongside MP4, MOV and M4V. The same page warns that availability "may vary depending on your device, operating system, and CapCut version", so an older build may behave differently.
Can I import a GIF into CapCut? GIF is in the image column, annotated "can be imported as video clips" — so it behaves as footage on the timeline rather than as a still image.
What file formats can CapCut export to? CapCut's help center articles don't publish a list of export container formats. Check the export panel in your own version, or the official documentation, rather than any third-party list.
Does renaming a file to .mp4 help? No. CapCut says renaming "does not change the actual file format" and the file "may still fail to import". You need an actual conversion.
Formats and quotes taken from CapCut's official help center, checked 16 September 2026. More CapCut specifics are collected in our limits guides.
