5 MB MP4 sample file

An MP4 file of exactly 5,242,880 bytes. It is a valid MPEG-4 Part 14 video file, generated for this site and checked with an independent parser.

sample-mp4-5mb.mp4

5 MB5,242,880 bytes

Download 5 MB MP4

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Type: video/mp4
SHA-256: 1d7adeb70e0491fd3f79a87c6f5e25fda6ee9a2d8052367d5be4bcc67ef8eb41
Direct URL: https://sampletestfiles.com/downloads/mp4/sample-mp4-5mb.mp4

What is in this file

2,793 frames (1 min 33 s) of a synthetic test pattern with a frame counter, looping every six seconds, in one H.264 video track. 650 bytes of a trailing "free" box bring the file to the exact size.

Dimensions	640 × 360 px
Duration	1 min 33 s
Frame rate	30 fps
Video codec	H.264 (AVC), Main profile
Audio	No audio track
Fast start	Yes (moov before mdat)

First bytes of the file

The first 64 bytes of sample-mp4-5mb.mp4 as a hex dump: offset, bytes, then the same bytes as text. The MP4 signature is 66 74 79 70 at offset 4.

00000000  00 00 00 20 66 74 79 70 69 73 6f 6d 00 00 02 00  |... ftypisom....|
00000010  69 73 6f 6d 69 73 6f 32 61 76 63 31 6d 70 34 31  |isomiso2avc1mp41|
00000020  00 00 2f 93 6d 6f 6f 76 00 00 00 6c 6d 76 68 64  |../.moov...lmvhd|
00000030  00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 e8  |................|

Preview

Loads the whole 5 MB file in your browser.

Where 5 MB matters

A 5,242,880-byte file: the size of a phone photo and the minimum part size for S3 multipart uploads. These are the default limits a file of this size is useful for testing:

System	Limit	Note
PHP	2 MB per uploaded file by default (upload_max_filesize)	A 5 MB upload fails on an untuned PHP installation.
Vercel Functions	4.5 MB request body	Larger uploads must go directly to object storage.
Amazon S3 multipart upload	5 MiB minimum part size	This file is exactly one minimum part.
AWS Lambda	6 MB synchronous invocation payload	5 MB of binary data exceeds it once base64-encoded.
Browser localStorage	About 5 MB per origin	Storing this file as text fills the quota.
Django	2.5 MB in memory by default	Larger uploads are streamed to a temporary file instead of held in memory.

All 5 MB sample files

Use this file for

Simulating photo uploads from phones
Testing video upload, transcoding and thumbnail extraction
Checking HTML video playback and seeking

Testing notes for MP4

Uploads are large and slow, so they expose timeout, retry and progress-reporting bugs that small files never reach.
Seeking in a browser needs HTTP range requests. A server that ignores the Range header makes video appear to work until someone drags the progress bar.

MP4 format reference

Technical details

File name	sample-mp4-5mb.mp4
Format	MP4 (MPEG-4 Part 14 video)
Extension	.mp4
MIME type	video/mp4
Size	5,242,880 bytes (5 MB)
Kind	Binary
Signature	66 74 79 70 at offset 4
SHA-256	1d7adeb70e0491fd3f79a87c6f5e25fda6ee9a2d8052367d5be4bcc67ef8eb41
Created	2026-10-10
Validation	Exact size, signature bytes and structure checked when the file was generated
Preview	Available on this page
Source	Generated for this site; not copied from elsewhere
Licence	Free to use, modify and redistribute (terms)
Category	Video

Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Download from the command line and verify

Fetch the file with curl, then compare its checksum with the SHA-256 value above.

curl -o sample-mp4-5mb.mp4 'https://sampletestfiles.com/downloads/mp4/sample-mp4-5mb.mp4'
sha256sum sample-mp4-5mb.mp4     # Linux
shasum -a 256 sample-mp4-5mb.mp4 # macOS

On Windows, run Get-FileHash sample-mp4-5mb.mp4 -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.

Related files

Questions about this file

Is this file exactly 5 MB?: Yes. It is 5,242,880 bytes, which is 5 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 5 MB MP4 file?: 2,793 frames (1 min 33 s) of a synthetic test pattern with a frame counter, looping every six seconds, in one H.264 video track. 650 bytes of a trailing "free" box bring the file to the exact size.
Do the MP4 samples have sound?: No. They contain a single H.264 video track and no audio track.

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