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5 MB MP3 test file

A MP3 audio file of exactly 5,242,880 bytes, created instantly in your browser. Nothing is uploaded, and there is no sign-up.

Testing a limit? Grab the edge cases too

Need another size or name? Open it in the generator.

What’s inside the file

An MPEG audio frame header followed by padding. It is recognised as audio/mpeg but is silent/unplayable — meant for upload and MIME tests.

  • Size: 5,242,880 bytes = 5 MB (binary) ≈ 5.24 MB (decimal)
  • MIME type: audio/mpeg
  • File name: dummy-5mb.mp3

Will a 5 MB file upload?

How a 5 MB file compares with published limits (verified 2026-09-27):

ServiceLimit5 MB file
Gmail — email attachments (total per message)25 MBFits
Outlook.com — email attachments25 MBFits
Yahoo Mail — email attachments (total per message)25 MBFits
WhatsApp — documents / files2 GBFits
Discord (free) — file attachments20 MBFits
Slack — file upload1 GBFits
Facebook Messenger — files in chats100 MBFits
Notion (Free) — file upload5 MBFits
Trello (Free) — card attachment from computer10 MBFits
X (Twitter) — image5 MBFits
LinkedIn — document post (pdf, docx, pptx)100 MBFits
Shopify — product image20 MBFits
Typeform — file upload question10 MBFits

Sources and 40+ more limits (servers, frameworks, cloud storage): file upload limits reference.

Good for testing

  • Audio and podcast upload forms
  • Voice-message attachment limits
  • audio/mpeg MIME validation

Questions

Is this 5 MB MP3 exactly 5,242,880 bytes?

Yes. The file is exactly 5,242,880 bytes (5 MB with 1 MB = 1,024 × 1,024 bytes). If the system you test counts 1 MB as 1,000,000 bytes, use the 5,000,000-byte button instead.

Will the MP3 file play?

No — An MPEG audio frame header followed by padding. It is recognised as audio/mpeg but is silent/unplayable — meant for upload and MIME tests. Use it to test uploads, size limits and MIME checks, not playback.

Is it safe? Where does the file come from?

The file is created by JavaScript in your own browser when you click the button. Nothing is uploaded or downloaded from a server, and the file contains no macros, scripts or personal data.

More about the format: MP3 format guide.