100 MB Markdown sample

A Markdown file of exactly 104,857,600 bytes. It is a valid Markdown file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 100 MB sample, test or dummy Markdown file.

sample-md-100mb.md

100 MB104,857,600 bytes

Download 100 MB Markdown

Created in your browser and, in browsers that can stream to disk, sent straight to your downloads list; this can take a minute. No sign-up.

Type: text/markdown
SHA-256: de8fa4f9bfd26ff7f3a06d0e41c37680f5dfe18a4d39f26df9d66094804328c3
Delivery: Created in your browser from static generator assets (how it works).

What is in this file

266,987 sections with headings, paragraphs, bulleted and numbered lists, block quotes, fenced code blocks and tables. An HTML comment at the end brings the file to the exact size.

Sections	266,987
Flavour	CommonMark, with GitHub-style tables
Elements	Headings, emphasis, lists, links, quotes, code blocks, tables
Encoding	UTF-8 (ASCII characters only)
Line endings	LF

How the file begins

The opening lines of sample-md-100mb.md, exactly as they appear in the file.

00000000  23 20 53 61 6d 70 6c 65  20 4d 61 72 6b 64 6f 77 |# Sample Markdow|
00000010  6e 20 66 69 6c 65 20 28  31 30 30 20 4d 42 29 0a |n file (100 MB).|
00000020  0a 41 20 43 6f 6d 6d 6f  6e 4d 61 72 6b 20 64 6f |.A CommonMark do|
00000030  63 75 6d 65 6e 74 20 66  6f 72 20 74 65 73 74 69 |cument for testi|

Preview

Creates the file in your browser and shows the first 64 KB of it.

Where 100 MB matters

A 104,857,600-byte file: the request-body limit of Cloudflare's Free and Pro plans, and the size above which GitHub rejects a file outright.

All 100 MB sample files

Use this file for

Finding the first upload limit in a new stack
Testing documentation pipelines
Testing Markdown renderers and editors

Testing notes for Markdown

Markdown may contain raw HTML, so anything that renders user-supplied Markdown needs an HTML sanitiser.
Tables are an extension rather than part of CommonMark, so renderers differ on whether they appear.

Markdown format reference

Technical details

File name	sample-md-100mb.md
Format	Markdown (Markdown)
Extension	.md
MIME type	text/markdown
Size	104,857,600 bytes (100 MB)
Kind	Text
SHA-256	de8fa4f9bfd26ff7f3a06d0e41c37680f5dfe18a4d39f26df9d66094804328c3
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	Documents

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-md-100mb.md     # Linux
shasum -a 256 sample-md-100mb.md # macOS

On Windows, run Get-FileHash sample-md-100mb.md -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 100 MB?: Yes. It is 104,857,600 bytes, which is 100 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 100 MB Markdown file?: 266,987 sections with headings, paragraphs, bulleted and numbered lists, block quotes, fenced code blocks and tables. An HTML comment at the end brings the file to the exact size.
Which Markdown features do the samples use?: Headings, emphasis, ordered and unordered lists, links, a pipe table, a fenced code block and a block quote.

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