2 MB PNG sample file

A PNG file of exactly 2,097,152 bytes. It is a valid Portable Network Graphics file, generated for this site and checked with an independent parser. Use it wherever you need a 2 MB sample, test or dummy PNG file.

sample-png-2mb.png

2 MB2,097,152 bytes

Download 2 MB PNG

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

Type: image/png
SHA-256: 3201ab5f4f78242d46c94e544f20d2f1c2ebdd876f1f1e94a46410f946f883b4
Delivery: Created in your browser. Files of 2 MB and more have no direct URL (why).

What is in this file

A 965 × 724 test card. The pixel data sits in a deflate stream made of stored blocks, so the size is set by the pixel count. 141 bytes of tEXt comment chunk bring the file to the exact size.

Dimensions	965 × 724 px
Colour type	Truecolour RGB, 8 bits per channel
Transparency	No
Compression	Deflate stream of stored blocks
Interlaced	No

First bytes of the file

The first 64 bytes of sample-png-2mb.png as a hex dump: offset, bytes, then the same bytes as text. The PNG signature is 89 50 4E 47 0D 0A 1A 0A.

00000000  89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52  |.PNG........IHDR|
00000010  00 00 03 c5 00 00 02 d4 08 02 00 00 00 ad ad 07  |................|
00000020  b1 00 00 00 81 74 45 58 74 43 6f 6d 6d 65 6e 74  |.....tEXtComment|
00000030  00 53 61 6d 70 6c 65 54 65 73 74 46 69 6c 65 73  |.SampleTestFiles|

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
Checking transparency handling
Testing image optimisation and conversion

Testing notes for PNG

PNG compresses flat colour extremely well, so a tiny file can expand to a very large bitmap. Check dimensions before decoding.
Converting a transparent PNG to JPEG needs a background colour; pipelines that forget produce black backgrounds.

PNG format reference

Technical details

File name	sample-png-2mb.png
Format	PNG (Portable Network Graphics)
Extension	.png
MIME type	image/png
Size	2,097,152 bytes (2 MB)
Kind	Binary
Signature	89 50 4E 47 0D 0A 1A 0A
SHA-256	3201ab5f4f78242d46c94e544f20d2f1c2ebdd876f1f1e94a46410f946f883b4
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	Images

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-png-2mb.png     # Linux
shasum -a 256 sample-png-2mb.png # macOS

On Windows, run Get-FileHash sample-png-2mb.png -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 PNG file?: A 957 × 730 test card. The pixel data sits in a deflate stream made of stored blocks, so the size is set by the pixel count. 369 bytes of tEXt comment chunk bring the file to the exact size.
Is there a sample with transparency?: Yes. The curated library includes a 512 × 512 PNG with an alpha gradient.

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