25 KB MOV sample
A MOV file of exactly 25,600 bytes. It is a valid QuickTime movie file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 25 KB sample, test or dummy MOV file.
Download
sample-mov-25kb.mov
25 KB25,600 bytes
Download 25 KB MOVCreated in your browser in a few seconds, then checked against the SHA-256 checksum. The file is not uploaded anywhere. No sign-up.
- Type
- video/quicktime
- SHA-256
c7e5ca26f4f1e591e8441574e0862cde37524ee8939d7b9d29a76882b4dd9853- Delivery
- Created in your browser from static generator assets (how it works).
What is in this file
16 frames (0.5 s) of a synthetic test pattern with a frame counter, looping every six seconds, in one H.264 video track of a QuickTime movie. 685 bytes of a trailing "free" atom bring the file to the exact size.
| Dimensions | 640 × 360 px |
|---|---|
| Duration | 0.5 s |
| Frame rate | 30 fps |
| Video codec | H.264 (AVC), Main profile |
| Audio | No audio track |
| Container | QuickTime (brand "qt ") |
| Fast start | Yes (moov before mdat) |
First bytes of the file
The first 64 bytes of sample-mov-25kb.mov as a hex dump: offset, bytes, then the same bytes as text. The MOV signature is 66 74 79 70 71 74 20 20 at offset 4.
00000000 00 00 00 14 66 74 79 70 71 74 20 20 00 00 02 00 |....ftypqt ....|
00000010 71 74 20 20 00 00 02 bb 6d 6f 6f 76 00 00 00 6c |qt ....moov...l|
00000020 6d 76 68 64 00 00 00 00 e5 7b 69 80 e5 7b 69 80 |mvhd.....{i..{i.|
00000030 00 00 03 e8 00 00 02 15 00 01 00 00 01 00 00 00 |................|Preview
MOV files cannot be shown in a browser. Download the file and open it in an application that reads MOV, such as QuickTime Player, iMovie and Final Cut Pro.
Where 25 KB matters
A 25,600-byte file: the size of a small web image or a short document. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| TCP initial congestion window | About 14.6 KB (10 segments) | 25 KB needs at least two flights of packets on a new connection. |
| Base64 encoding | Adds 33 percent | A 25 KB file becomes about 34 KB inside JSON or an email. |
Use this file for
- Checking email size handling
- Checking transcoding of MOV to MP4 for web playback
- Verifying that an allow-list accepts video/quicktime
Testing notes for MOV
- Phone footage stores its orientation as a rotation flag instead of rotating the pixels. A pipeline that ignores the flag produces sideways video.
- Phones upload MOV by default, so an allow-list that names only video/mp4 rejects the most common video a mobile user has.
Technical details
| File name | sample-mov-25kb.mov |
|---|---|
| Format | MOV (QuickTime movie) |
| Extension | .mov |
| MIME type | video/quicktime |
| Size | 25,600 bytes (25 KB) |
| Kind | Binary |
| Signature | 66 74 79 70 71 74 20 20 at offset 4 |
| SHA-256 | c7e5ca26f4f1e591e8441574e0862cde37524ee8939d7b9d29a76882b4dd9853 |
| Created | 2026-10-23 |
| Validation | See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility. |
| Preview | Not available for this file; details only |
| Source | Generated in your browser by this site's generator; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Video |
Check the stated structure and checksum against your application requirements. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Verify your copy
This file is created in your browser, so it has no direct URL for curl or wget. The generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.
sha256sum sample-mov-25kb.mov # Linux
shasum -a 256 sample-mov-25kb.mov # macOSOn Windows, run Get-FileHash sample-mov-25kb.mov -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.
Related files
Questions about this file
- Is this file exactly 25 KB?
- Yes. It is 25,600 bytes, which is 25 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 25 KB MOV file?
- 16 frames (0.5 s) of a synthetic test pattern with a frame counter, looping every six seconds, in one H.264 video track of a QuickTime movie. 685 bytes of a trailing "free" atom bring the file to the exact size.
- Do the MOV samples have sound?
- No. They contain one H.264 video track and no audio track, with the index at the start of the file.