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Skip to contentChange video width while keeping aspect ratio. Use Tentaco Resize Video to process the file in your browser and download the result — no account.
Full tool — runs in your browser. No sign-up required.
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Change video width while keeping aspect ratio. Files are processed entirely in your browser with FFmpeg — nothing is uploaded to a server.
Load your file into Tentaco Resize Video. The core flow runs locally; online steps are labeled in the UI.
The primary button opens the matching studio mode so you can start without an account. People often search for: resize video, scale video, video skalieren.
Open Resize Video via the studio button (direct mode).
Select or drop your file.
Adjust options and review the preview or output.
Download the result and re-run if you need another pass.
Hybrid: core steps run locally; labeled online steps may send data to a service. Permanent storage only after your action.
Local + OnlineHybrid tool: local processing by default, with optional online steps that are clearly marked.
Resize Video accepts the file types listed in the tool UI. Convert unsupported formats first or use a related Tentaco tool.
Only for labeled online steps. The core flow of Resize Video stays local.
Practical limits depend on your device and browser memory. Very large files may be slow or fail in Resize Video — shrink the file and retry.
After processing, Resize Video shows a download action. Save locally; Tentaco does not auto-archive to a cloud library.
Yes, Resize Video runs in mobile browsers. For very large media, desktop is often more comfortable.
Tentaco Video Studio — free browser video editor
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Save the audio track as MP3. Use Tentaco Extract Audio from Video to process the file in your browser and download the result — no account.
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