Sample MP4 files

Free MP4 test files from 5 KB to 1 GB. Pick a size and download, or type any size you need.

5 KB MP4
1 sec · 96×54 · no sound
10 KB MP4
1 sec · 160×90 · no sound
100 KB MP4
4 sec · 320×180 · with sound
500 KB MP4
8 sec · 640×360 · with sound
1 MB MP4
10 sec · 1280×720 · with sound
5 MB MP4
Made on your device
10 MB MP4
Made on your device
25 MB MP4
Made on your device
50 MB MP4
Made on your device · saved in pieces
100 MB MP4
Made on your device · saved in pieces
500 MB MP4
Made on your device · saved in pieces
1 GB MP4
Made on your device · saved in pieces

Free for any use, including commercial. Made by this site, with no third-party content and no signup.

What is inside

An H.264 test pattern at 25 frames a second, with a running clock
A beeping 440 Hz tone in AAC, so audio and video sync is easy to check
10 KB: 1 s at 160 × 90, no audio. 100 KB: 4 s at 320 × 180. 500 KB: 8 s at 640 × 360
1 MB: 10 s at 1280 × 720
Above 1 MB, up to 1 GB: the same 1 MB clip plus an MP4 free box, which players skip
The index (moov) is at the start, so playback can begin before the download ends

Try it with these tools

They run in your browser. The file you downloaded stays on your device.

About MP4 files

MP4 is a container format, standardised as MPEG-4 Part 14. It holds video, audio and subtitle tracks, plus an index that tells a player where each frame is. H.264 video with AAC audio is by far the most common mix inside it.

It is the format that plays almost everywhere: every browser, phone, smart TV and video site accepts H.264 MP4. That is why upload forms and video tools test against it first.

Two things commonly go wrong. First, a file named .mp4 may hold a codec a player cannot decode, such as H.265, even though the container is fine. Second, when the index (the moov box) sits at the end of the file, a browser must download everything before it can start playing. These samples put the index at the start.

Sources: Media container formats (MDN) · Web video codec guide (MDN) · MPEG-4 file format, version 2 (Library of Congress)

Questions

Why is a 100 MB or 1 GB video only 10 seconds long?

Every file above 1 MB is the 10-second 720p clip with an MP4 free box added to reach the size, made on your device so nothing large is downloaded. They play normally and are right for testing upload limits, but not for testing long videos or high bitrates.

Why does the 10 KB video have no sound?

There is not enough room. One second of 160 × 90 video fills most of the 10 KB, so the smallest clip is video only. Every other size has an AAC audio track.

Will compressing a big sample make it much smaller?

Yes, but mostly because the padding is thrown away. A tool that rewrites the file usually drops the free box, so you get back about the 1 MB clip. That tells you little about how well the tool compresses real video.

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For developers: exact bytes and SHA-256

Sizes are decimal (1 MB = 1,000,000 bytes). The hosted files never change between builds, so these checksums stay valid.

File	Bytes	SHA-256
sample-5kb.mp4	5,000 bytes	9645c9762f72aeff18838f350d24859c54043665155058ce7ce7524d29706da2
sample-10kb.mp4	10,000 bytes	4dbdb6e34304b26a1aac567613b6e645b8808c192786cb8db4ebf588bb7f6ab9
sample-100kb.mp4	100,000 bytes	5dc6580ec9330df1610f491224b696b8e13243dd7ba4f73c99c16080d7f1f3a3
sample-500kb.mp4	500,000 bytes	d87e0405cb0e7391d21288b3864da1763161848978084ea56d273ab3f5fe2b2d
sample-1mb.mp4	1,000,000 bytes	d4df60e4c7d55e46d4609d1af5ac03019f2633fa5d64579c32d160f716f7d003