Sample MP3 files
Free MP3 test files from 5 KB to 1 GB. Pick a size and download, or type any size you need.
5 KB MP3
0.3 s of music
10 KB MP3
0.6 s of music
100 KB MP3
6.2 s of music
500 KB MP3
31.2 s of music
1 MB MP3
1 min 2 s of music
5 MB MP3
Made on your device
10 MB MP3
Made on your device
25 MB MP3
Made on your device
50 MB MP3
Made on your device · saved in pieces
100 MB MP3
Made on your device · saved in pieces
500 MB MP3
Made on your device · saved in pieces
1 GB MP3
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
- A generated arpeggio over four repeating chords; no recorded or third-party music
- 128 kbps constant bitrate, 44.1 kHz, mono
- Length follows size: 10 KB is about 0.6 s and 1 MB about 1 min 2 s. Above 1 MB the music repeats, so 100 MB plays for about 1 hour 40 minutes and 1 GB for about 17 hours
- An ID3v2 tag with the title “ToolXkit sample MP3”
- The tag’s padding makes each file exactly its labelled size
Try it with these tools
They run in your browser. The file you downloaded stays on your device.
- Compress MP3 Re-encode an MP3 at a lower bitrate to make it smaller.
- Audio Cutter Trim a clip to exactly the part you want.
- MP3 to WAV Decode a compressed MP3 to lossless WAV.
- Audio Converter Convert between MP3, WAV, M4A, OGG and FLAC.
- Edit Audio Tags Fix the title, artist and album on a music file.
- Audio Joiner Stitch several tracks into one continuous file.
- Change Audio Speed Speed a recording up or slow it down.
- Volume Boost & Normalise Make a quiet recording loud, without clipping it.
About MP3 files
MP3 is the audio part of the MPEG-1 standard from the early 1990s. It is lossy: it removes sounds the ear is unlikely to notice. At 128 kbps a song takes roughly a megabyte a minute.
It is still the audio format that plays on almost anything: phones, car stereos, browsers, podcast apps and cheap speakers. Voice notes, ringtones and podcast episodes are often shared as MP3 for that reason.
Length is where things go wrong. In a variable-bitrate MP3 a player has to guess the duration unless the file carries a proper header, so the time shown can be wrong and seeking can jump. These samples use a constant bitrate, so the length is exact.
Sources: Web audio codec guide (MDN) · MP3 file format (Library of Congress)
Questions
Does a 1 GB MP3 really play that long?
Yes. Above 1 MB the file repeats our minute of music until it reaches the size, made on your device, so a 1 GB MP3 plays for about 17 hours. It is a good test of long-file seeking and players that load the whole file.
Why is it mono?
Mono at 128 kbps is simple and common, and a stereo file at the same bitrate holds the same length. If your tool has a stereo-only path, this is a quick way to find out.
What is at the start of the file?
An ID3v2 tag with the title and some empty padding, which is normal for MP3. A tool that expects audio to start at byte zero will fail here, and on most real MP3s too.
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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.mp3 | 5,000 bytes | 3197a42ecfd734bceb9fa6fb262d9cea11c0d6a7cf7685150803133dba28f7a8 |
| sample-10kb.mp3 | 10,000 bytes | 7a09eac00596d35517dfd1519818c1438661237061bd3b191156316e6a6a321b |
| sample-100kb.mp3 | 100,000 bytes | f8749d5fed77ee814bc330d714ed41c68e9237596b93f23034b395e5b23ddd79 |
| sample-500kb.mp3 | 500,000 bytes | 0f58ce8dec82915c46532ea4880dabeceae75763b6df07f970f961cf914350d6 |
| sample-1mb.mp3 | 1,000,000 bytes | eeffb896485a95e0b69a106f282538dcf4fc46a9469c8aa277101656ea288213 |