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Sample 241 KB MP3 File — Free Download for Testing

sample-audio-15s-128kbps.mp3 · 241,324 bytes · 15 s · MP3 · 128 kbps · 44.1 kHz · stereo

Exactly 241,324 bytesaudio/mpegDirect linkNo sign-upFree for any use

This is a 241 KB sample MP3 file — exactly 241,324 bytes, generated by us rather than scraped, so the size is deliberate and the contents are free of anyone else's copyright. 15s • 128 kbps (15 s · MP3 · 128 kbps · 44.1 kHz · stereo). Use it to test an upload limit near 241 KB, to time a transfer, or as a fixture whose hash never changes.

Sizes here are decimal: 241 KB means 241,324 bytes, not 0.23 MiB. If your limit is expressed in binary units, check the exact byte count above before assuming this file is under it.

Preview: sample-audio-15s-128kbps.mp3 — every file on this page uses the same test pattern at a different size or resolution.

File details

File namesample-audio-15s-128kbps.mp3
Exact size241,324 bytes (241 KB / 236 KiB)
FormatMPEG-1 Audio Layer III (.mp3)
MIME typeaudio/mpeg
Properties15 s · MP3 · 128 kbps · 44.1 kHz · stereo
SHA-256414a857680104e085d6e37091cdb8b8d99c32e9b1192e9165eaf8aecb49b30ce
Direct URLhttps://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/audio/mp3/sample-audio-15s-128kbps.mp3

Download from the command line

curl -O https://pnb-website-bucket.s3.us-east-2.amazonaws.com/samples/audio/mp3/sample-audio-15s-128kbps.mp3
shasum -a 256 sample-audio-15s-128kbps.mp3

Other MP3 sizes

Frequently asked questions

How big is this MP3 file exactly?

Exactly 241,324 bytes (241 KB using decimal units, where 1 MB = 1,000,000 bytes). Binary-unit tools will show a slightly different number: 0.23 MiB. The SHA-256 on this page lets you confirm you received the same file byte for byte.

What can I test with a 241 KB MP3 file?

Upload size limits that sit near 241 KB, transfer timing, storage quotas, and any pipeline that behaves differently above or below a size threshold. Pick the file just under and just over your limit to find out whether the limit is inclusive.

Is this file free to use commercially?

Yes. It is generated from scratch by our own open script — no third-party copyright, no scripts or macros inside — and free for any purpose including commercial products and redistribution, with no attribution required.

Found a problem, or something that could be better? We read every message and we fix things quickly.

Sample Files by Pine & Birch — technology consulting, Toronto. Free to use, no signup, no attribution required.