Compress MOV to 25 MB
Turn a MOV video into an MP4 just under 25 MB with the sharpest picture that fits. Free, no watermark, processed on your device.
MOV
iPhones and Macs record MOV files, usually with HEVC (H.265) video, which many Windows PCs and Android apps cannot play.
Nibbo decodes the MOV and saves an H.264 MP4, so the compressed file is smaller and plays everywhere.
What fits in 25 MB
What the compressor picks for a typical 1080p 30 fps phone clip (about 16 Mbit/s) of different lengths when the limit is 25 MB:
| Clip length | Resolution | Video bitrate |
|---|---|---|
| 30 seconds | 1080p | 6,127 kbit/s |
| 1 minute | 720p | 2,994 kbit/s |
| 2 minutes | 540p | 1,460 kbit/s |
| 5 minutes | 360p | 553 kbit/s |
| 10 minutes | 240p | 239 kbit/s |
How it works
- We read your video locally and measure how detailed (SI) and how much in motion (TI) it is.
- From the size you pick we compute an exact bitrate budget, then choose the resolution and frame rate that look best at that budget. Lower resolution with enough bits beats blocky full resolution.
- Your GPU encodes it through WebCodecs. Formats the browser cannot decode go through FFmpeg compiled to WebAssembly.
- If the result is even slightly over the limit, we re-encode with a corrected bitrate, so the file fits.
Questions
Can I keep the MOV format?
The result is MP4, because H.264 MP4 plays everywhere, including Windows and Android. Rename tricks are not needed.
Will the file be exactly that size?
It will be just under 25 MB, never over. If the first pass overshoots, Nibbo re-encodes with a corrected bitrate.
Is my video uploaded?
No. Nibbo runs in your browser and compresses the video on your device. You can switch off Wi-Fi after the page loads and it still works.
Why does my video get a lower resolution?
A small file has a fixed number of bits. Spreading them over fewer pixels gives a clean picture; keeping full resolution would make it blocky.