Change video resolution
The same video at 1080p, 720p or 480p.
Drop files here
or click to choose from your deviceAccepted: MP4, M4V, MOV
One file per runUp to 150 MB per file5 runs per dayRemove limits with Pro✓ Works offline
Your files stay on your device
This tool runs entirely in your browser. Nothing is uploaded, nothing is stored, and you can even turn off your internet connection before you start.
Example
Worked example — Change video resolution
Use the following inputs and settings.
| Item | Value |
|---|---|
| Input | clip.mp4 · 320 × 240 px · 3 s |
| Resolution (longest side) | Up to 720p (1280 px) |
| Quality | Best picture |
| Aim for a size | No target, use the quality below |
| Output files | 1 |
| Output | clip.mp4 |
| File size | 111166 B |
| Output | 3.00 s |
Expected result — Output files: 1.
How it works
- Add the video — MP4, M4V or MOV, which covers phones, screen recordings and most cameras.
- Choose the resolution. It counts the long side: 720p makes it 1280 pixels, so a portrait phone video comes out 720 × 1280. 720p is the usual answer to “the file is too big”.
- Leave the quality on Best picture unless you also need the file to be much smaller.
- Download the re-encoded video.
Frequently asked questions
- Will it look worse?
- It has fewer pixels, so on a big screen yes. Watched at the size it now is, a 720p copy of a 1080p video is hard to tell apart — which is why it is the usual compromise.
- Can I make it bigger instead?
- No, and nothing else honestly can either: the detail is not in the file. Upscaling invents pixels, and for video that mostly means a softer picture.
- Does the sound change?
- No. The sound track is copied across as it is, not re-encoded, so it loses nothing. A track that cannot be copied that way, such as the uncompressed PCM in some camcorder MOV files, is reported rather than dropped; choose Remove the sound then. You can also remove it if you only need the picture.
- Is my video uploaded?
- No — it is decoded and re-encoded by your own browser, which is also why a long video takes a while.
Related tools
▶ Compress video A smaller MP4, made on your device by the same encoder your phone records with. ✂ Trim video Keep the seconds you need. The file never leaves your device. ♪ Video to MP3 The sound out of your video, as an MP3, made on your device. ▶ Video to GIF Pick the seconds you want and get a GIF, without the video leaving your device.