Uploads, formats and link imports
Valmera accepts MP4, MOV, M4V, MKV and WebM video up to 14 GB and 3 hours per file; both limits apply. Add images (PNG, JPG, WebP) and audio (MP3, WAV, M4A, AAC, OGG) up to 50 MB each, or paste a link and the agent imports the media for you. Uploading is free. After upload, Valmera analyzes the video once so the agent can read and edit it.
Supported files and limits
| File | Formats | Limit | Used for |
|---|---|---|---|
| Main video | MP4, MOV, M4V, MKV, WebM | 14 GB and 3 hours | The footage you edit; transcribed and analyzed |
| Extra video clips | MP4, MOV, M4V, MKV, WebM | 14 GB and 3 hours | B-roll, inserts, cutaways, picture-in-picture |
| Images | PNG, JPG/JPEG, WebP | 50 MB | Logos, photos, slides, slideshow stills |
| Audio | MP3, WAV, M4A, AAC, OGG | 50 MB | Music, voiceover, sound effects |
| Link imports | Direct file links; YouTube, TikTok, Vimeo, SoundCloud pages | 500 MB video, 50 MB audio, 10 MB images; 60 minutes | Media you don’t have as a file |
The file extension names a container, not the codec inside it. Renaming a file to .mp4 doesn’t convert it; re-export it from your editor or recorder instead.
How to upload
- Open Studio and pick a mode
Open Studio. Keep LONG VIDEO to edit one video, or choose SHORTS to cut a long recording into several shorts. Start a new project from the menu with + New Project, or just drop a file.
- Drop your video
Drag your MP4, MOV, M4V, MKV or WebM file onto the page or choose it. It uploads directly to secure storage; keep the tab open until the upload finishes.
- Let analysis run
Valmera analyzes the video once: transcript, speaker labels, shots, silences, burned-in text, a visual overview and a preview copy. Type your request meanwhile; it starts when analysis finishes.
- Add extra files
Use + Add media in the workspace toolbar, or drop images, audio or extra clips into the chat. Staged files go in with your next message, so say what each one is for: “Use logo.png in the top-right corner” or “Put drone.mp4 after the intro.”
What analysis produces
Valmera analyzes each upload once. The agent uses these results for every request you make afterwards.
| Result | What it lets you do |
|---|---|
| Word-level transcript with speaker labels | Cut by quoted words, remove filler words, word-timed captions, “keep only the guest’s answers” |
| Shot changes | Transitions on real scene changes, per-shot framing |
| Silences and pauses | One-request dead-air removal with breathing room |
| Burned-in text | Remove or avoid existing subtitles, watermarks and on-screen text |
| Visual overview of the footage | The agent can see moments, faces and screen content before it edits |
| Preview copy (proxy) | Fast previews while you edit; the export still uses the original |
Corrections to the transcript are saved for that video, so later captions and edits use the fixed words. See correct the transcript.
Import from a link
Paste a link in the chat and say what it’s for. Valmera downloads the media into your project and, if you asked, places it in the edit. It works with direct file links (Dropbox, Google Drive, a CDN or stock site) and with pages on YouTube, TikTok, Vimeo and SoundCloud.
| Link import limit | Value |
|---|---|
| Video | Up to 500 MB, fetched at up to 1080p |
| Audio | Up to 50 MB |
| Images | Up to 10 MB |
| Duration | Up to 60 minutes |
- Here’s my b-roll: https://… Put the first five seconds right after the intro.
- Use the audio from this video as the background music: https://…
- Download this image and show it full screen when I mention the new office: https://…
Type these in Studio chat, or ask Claude, ChatGPT, Cursor or another assistant connected to Valmera’s MCP server. More in the prompt library.
Importing doesn’t check who owns the media. Valmera reports the source with each import; use only media you have the rights to publish. Private, removed or login-only links can’t be fetched. Upload the file instead; direct uploads also allow much larger files.
Prepare a large recording
If a recording is over 14 GB, export a copy before uploading and keep the original on your device:
- H.264 video at up to 1080p and the original frame rate.
- An average video bitrate of about 10 Mbps, with AAC audio at 128 kbps. At that rate a full three-hour recording stays under 14 GB.
- Check the exported size and watch a few moments with small text or fast motion before uploading.
Compression reduces size, not duration: split anything longer than three hours into parts. The video bitrate calculator estimates file size for other settings.
Troubleshooting
| Symptom | Fix |
|---|---|
| “File type not supported” | Use MP4, MOV, M4V, MKV or WebM for video, PNG/JPG/WebP for images and MP3/WAV/M4A/AAC/OGG for audio. Re-export the file; renaming the extension doesn’t convert it. |
| “File is larger than the 14 GB limit” | Export an H.264 copy at about 10 Mbps (see above), or split the recording. |
| The video is longer than 3 hours | Split it into parts. Each part can be its own project. |
| The upload stalls or the tab was closed | Reopen the project. Studio shows what completed; start the upload again only if the file isn’t there. |
| Export says the original is still uploading | Keep the uploading tab open until the transfer finishes, then export. |
| A link import fails | The link may be private, removed, region-locked or behind a login. Download the file yourself and upload it. |
| A link import is too large | Link imports stop at 500 MB for video. Upload the file directly instead (up to 14 GB). |
| “Upgrade to use the Valmera AI editor” after uploading | Editing requires a subscription. Your upload is kept; choose a plan, then send your request. |
| The transcript has errors | English is the best-tested language. Fix any line with the pencil in the transcript panel. |
Limits
- Video: MP4, MOV, M4V, MKV, WebM up to 14 GB and 3 hours per file.
- Images and audio: up to 50 MB each. Link imports: 500 MB video, 50 MB audio, 10 MB images, 60 minutes.
- One main video per project; other videos are clips you place in the edit.
- No SRT or VTT subtitle import.
- Speech in inserted clips isn’t transcribed, so captions cover the main video.
Tools behind this page: upload_start upload_finish index_status fetch_url list_assets create_project · Full toolset reference
Frequently asked questions
What video formats does Valmera accept?
MP4, MOV, M4V, MKV and WebM, up to 14 GB and 3 hours per file. Both limits apply to every video.
Do both the 14 GB and 3-hour limits apply?
Yes. A 1 GB recording that runs four hours is too long, and a 20 GB recording that runs twenty minutes is too large. Split long recordings and export oversized files as H.264 before uploading.
What image and audio files can I add?
Images: PNG, JPG/JPEG and WebP. Audio: MP3, WAV, M4A, AAC and OGG. Each file can be up to 50 MB.
Can I import a video from YouTube or another link?
Yes. Paste the link into the chat and say how to use it. Valmera imports direct file links and pages from YouTube, TikTok, Vimeo and SoundCloud: video up to 500 MB, audio up to 50 MB, images up to 10 MB, up to 60 minutes long, at up to 1080p. Use only media you have the rights to use.
Can I upload more than one video to a project?
Each project has one main video that Valmera transcribes and edits. Add other videos as clips for inserts, cutaways and picture-in-picture, or give each recording its own project.
Can I upload SRT or VTT subtitles?
No. Valmera writes captions from the speech in your video and burns them into the export. There is no SRT or VTT import or export.
Is uploading free?
Yes. Creating an account and uploading are free. Editing requires a subscription.