2 MB WAV sample file

A WAV file of exactly 2,097,152 bytes. It is a valid Waveform Audio File Format file, generated for this site and checked with an independent parser. Use it wherever you need a 2 MB sample, test or dummy WAV file.

sample-wav-2mb.wav

2 MB2,097,152 bytes

Download 2 MB WAV

Created in your browser in a few seconds, then checked against the SHA-256 checksum. No sign-up.

Type: audio/wav
SHA-256: ea9f5ba3b3402e018bf3ab913734892c32deddf4ce87d1ddda6727eb3b889a9d
Delivery: Created in your browser. Files of 2 MB and more have no direct URL (why).

What is in this file

11.9 s of a synthesised eight-second musical phrase that repeats, as uncompressed 16-bit stereo PCM behind a 44-byte RIFF header. No padding is needed: the sample count sets the size.

Duration	11.9 s
Sample rate	44,100 Hz
Channels	2 (stereo)
Bit depth	16-bit PCM
Bit rate	1,411 kbit/s

First bytes of the file

The first 64 bytes of sample-wav-2mb.wav as a hex dump: offset, bytes, then the same bytes as text. The WAV signature is 52 49 46 46 ?? ?? ?? ?? 57 41 56 45.

00000000  52 49 46 46 f8 ff 1f 00 57 41 56 45 66 6d 74 20  |RIFF....WAVEfmt |
00000010  10 00 00 00 01 00 02 00 44 ac 00 00 10 b1 02 00  |........D.......|
00000020  04 00 10 00 64 61 74 61 d4 ff 1f 00 00 00 00 00  |....data........|
00000030  02 00 02 00 0a 00 09 00 15 00 13 00 2a 00 27 00  |............*.'.|

Preview

Creates the file in your browser and shows it here. Nothing large is downloaded from our server.

Where 2 MB matters

A 2,097,152-byte file: exactly the default upload limit of PHP, and twice the default of nginx and Spring Boot. 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 file of exactly 2 MB is accepted; one byte more is refused.
nginx	1 MB by default (client_max_body_size)	Rejected with 413 Request Entity Too Large.
Spring Boot multipart	1 MB per file by default (max-file-size)	Rejected unless the property is raised.
Django	2.5 MB in memory by default	2 MB is held in memory; the 5 MB sample is streamed to a temporary file.
Vercel Functions	4.5 MB request body	Accepted, including as base64 at about 2.8 MB.

All 2 MB sample files

Use this file for

Finding out whether a 1 MB default has been raised
Testing large audio uploads
Checking transcoding to MP3, AAC or Opus

Testing notes for WAV

Not every WAV file has a 44-byte header; extra chunks may appear before the audio data, so parsers must walk the chunk list.
Three MIME types are in common use: audio/wav, audio/x-wav and audio/vnd.wave. Allow-lists should accept all of them.

WAV format reference

Technical details

File name	sample-wav-2mb.wav
Format	WAV (Waveform Audio File Format)
Extension	.wav
MIME type	audio/wav
Size	2,097,152 bytes (2 MB)
Kind	Binary
Signature	52 49 46 46 ?? ?? ?? ?? 57 41 56 45
SHA-256	ea9f5ba3b3402e018bf3ab913734892c32deddf4ce87d1ddda6727eb3b889a9d
Created	2026-10-14
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-wav-2mb.wav     # Linux
shasum -a 256 sample-wav-2mb.wav # macOS

On Windows, run Get-FileHash sample-wav-2mb.wav -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy, or use a 1 MB file, which has a direct URL.

Related files

Questions about this file

Is this file exactly 2 MB?: Yes. It is 2,097,152 bytes, which is 2 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 2 MB WAV file?: 11.9 s of a synthesised eight-second musical phrase that repeats, as uncompressed 16-bit stereo PCM behind a 44-byte RIFF header. No padding is needed: the sample count sets the size.
What format are the WAV samples?: 16-bit stereo PCM at 44,100 Hz with the canonical 44-byte header.

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