Sample 10-second MP3 audio
An MP3 file that lasts 10 seconds: a synthesised musical phrase at a constant 128 kbit/s, 44.1 kHz stereo, with an ID3v2.3 tag.
Download
sample-mp3-10-seconds.mp3
156 KB160,207 bytes
Download MP3 sampleCreated in your browser in a few seconds, then checked against the SHA-256 checksum. The file is not uploaded anywhere. No sign-up.
- Type
- audio/mpeg
- SHA-256
b9f2bda1dbe09ced8e4c47c30c8c7ca96d708c0bfd0dc36c869fe407aab853dd- Delivery
- Created in your browser, so nothing is downloaded from our server (how it works).
Why test with this file
A clip short enough to play to the end in an automated test, for checking players, duration display and the "ended" event.
| Duration | 10.0 s |
|---|---|
| Bit rate | 128 kbit/s constant |
| Sample rate | 44,100 Hz |
| Channels | Stereo |
| Format | MPEG-1 Audio Layer III |
| Tags | ID3v2.3 (title, artist, album, genre) |
What to check
After your application has processed sample-mp3-10-seconds.mp3, confirm that:
- The duration is reported as 10 seconds, to within a tenth of a second.
- Playback reaches the end and the player returns to its stopped state.
- The title from the ID3 tag is shown instead of the file name.
First bytes of the file
The first 64 bytes of sample-mp3-10-seconds.mp3 as a hex dump: offset, bytes, then the same bytes as text. The MP3 signature is 49 44 33.
00000000 49 44 33 03 00 00 00 00 00 78 54 49 54 32 00 00 |ID3......xTIT2..|
00000010 00 1b 00 00 00 53 61 6d 70 6c 65 20 4d 50 33 20 |.....Sample MP3 |
00000020 28 31 36 30 2c 32 30 37 20 62 79 74 65 73 29 54 |(160,207 bytes)T|
00000030 50 45 31 00 00 00 10 00 00 00 53 61 6d 70 6c 65 |PE1.......Sample|Preview
Creates the file in your browser and shows it here.
Technical details
| File name | sample-mp3-10-seconds.mp3 |
|---|---|
| Format | MP3 (MPEG-1 Audio Layer III) |
| Extension | .mp3 |
| MIME type | audio/mpeg |
| Size | 160,207 bytes (156 KB) |
| Kind | Binary |
| Signature | 49 44 33 |
| SHA-256 | b9f2bda1dbe09ced8e4c47c30c8c7ca96d708c0bfd0dc36c869fe407aab853dd |
| Created | 2026-10-21 |
| Validation | Exact size, signature bytes and structure checked when the generator was built; your copy is checked against the SHA-256 after it is created |
| Preview | Available on this page |
| Source | Generated in your browser by this site's generator; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Audio |
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
Verify your copy
This file is created in your browser, so it has no direct URL for curl or wget. The bytes are the same every time and in every browser, so after saving it you can compare its checksum with the SHA-256 value above.
sha256sum sample-mp3-10-seconds.mp3 # Linux
shasum -a 256 sample-mp3-10-seconds.mp3 # macOSOn Windows, run Get-FileHash sample-mp3-10-seconds.mp3 -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.
Where it fits
- Web development
Placeholder images, media, data and documents for building and demonstrating web interfaces.
- File upload testing
Test an upload form or endpoint with files of every size and type it should accept, and several it should refuse.