3 MB XML sample
An XML file of exactly 3,145,728 bytes. It is a valid Extensible Markup Language file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 3 MB sample, test or dummy XML file.
Download
sample-xml-3mb.xml
3 MB3,145,728 bytes
Download 3 MB XMLCreated in your browser in a few seconds, then checked against the SHA-256 checksum. No sign-up.
- Type
- application/xml
- SHA-256
54483e805d40089a9d5ee9dab12c26202621b8e09211f81e93fb26c1f1fa028b- Delivery
- Created in your browser from static generator assets (how it works).
What is in this file
A <customers> root element holding 9,789 fictional records that mix child elements, attributes and an empty element. An XML comment before the closing tag brings the file to the exact size.
| Elements | 9,789 <customer> records |
|---|---|
| Root element | <customers> |
| Declaration | XML 1.0, UTF-8 |
| Encoding | UTF-8 (ASCII characters only) |
| Line endings | LF |
How the file begins
The opening lines of sample-xml-3mb.xml, exactly as they appear in the file.
00000000 3c 3f 78 6d 6c 20 76 65 72 73 69 6f 6e 3d 22 31 |<?xml version="1|
00000010 2e 30 22 20 65 6e 63 6f 64 69 6e 67 3d 22 55 54 |.0" encoding="UT|
00000020 46 2d 38 22 3f 3e 0a 3c 63 75 73 74 6f 6d 65 72 |F-8"?>.<customer|
00000030 73 20 67 65 6e 65 72 61 74 6f 72 3d 22 53 61 6d |s generator="Sam|Preview
Creates the file in your browser and shows its first 64 KB.
Where 3 MB matters
A 3,145,728-byte file, 3 MB in the binary units that operating systems and upload limits use. It is useful wherever a form, an API gateway, a storage quota or a mail server is configured with a limit of about this size.
Use this file for
- Finding out whether a 1 MB default has been raised
- Testing XML parsers and data import
- Checking protection against entity attacks
Testing notes for XML
- Parsers that resolve external entities can be made to read local files or call internal services, an attack called XXE. Disable DTD processing for untrusted input.
- Nested entity definitions can expand exponentially ("billion laughs"). The samples here declare no entities.
Technical details
| File name | sample-xml-3mb.xml |
|---|---|
| Format | XML (Extensible Markup Language) |
| Extension | .xml |
| MIME type | application/xml |
| Size | 3,145,728 bytes (3 MB) |
| Kind | Text |
| Signature | 3C 3F 78 6D 6C |
| SHA-256 | 54483e805d40089a9d5ee9dab12c26202621b8e09211f81e93fb26c1f1fa028b |
| Created | 2026-10-23 |
| Validation | See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility. |
| 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 | Data |
Check the stated structure and checksum against your application requirements. 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 generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.
sha256sum sample-xml-3mb.xml # Linux
shasum -a 256 sample-xml-3mb.xml # macOSOn Windows, run Get-FileHash sample-xml-3mb.xml -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.
Related files
Questions about this file
- Is this file exactly 3 MB?
- Yes. It is 3,145,728 bytes, which is 3 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 3 MB XML file?
- A <customers> root element holding 9,789 fictional records that mix child elements, attributes and an empty element. An XML comment before the closing tag brings the file to the exact size.
- Do the XML samples use a DTD or entities?
- No. They have an XML declaration and no DOCTYPE, so they are safe for parsers with DTD processing disabled.