100 MB SRT sample

An SRT file of exactly 104,857,600 bytes. It is a valid SubRip subtitles 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 SRT file.

sample-srt-100mb.srt

100 MB104,857,600 bytes

Download 100 MB SRT

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: application/x-subrip
SHA-256: d694f4191193cb184e8ef4f5f3d3c09eb43ec34b0d47e0cbb7c77493300f8a20
Delivery: Created in your browser from static generator assets (how it works).

What is in this file

875,493 numbered subtitle cues, one every 137 ms and each shown for 123 ms, with up to three lines of text of at most 42 characters. The last cue repeats "End of sample" lines to bring the file to the exact size.

Cues	875,493
Timing	HH:MM:SS,mmm
Line length	At most 42 characters
Formatting tags	None
Encoding	UTF-8 (ASCII characters only)
Line endings	LF

How the file begins

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

00000000  31 0a 30 30 3a 30 30 3a  30 30 2c 30 30 30 20 2d |1.00:00:00,000 -|
00000010  2d 3e 20 30 30 3a 30 30  3a 30 30 2c 31 32 33 0a |-> 00:00:00,123.|
00000020  45 76 65 72 79 20 6c 69  6e 65 20 69 6e 20 74 68 |Every line in th|
00000030  69 73 20 64 6f 63 75 6d  65 6e 74 20 77 61 73 20 |is document was |

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 caption editors and timing tools
Testing subtitle upload and display

Testing notes for SRT

SRT uses a comma before the milliseconds and WebVTT uses a full stop. Mixing them up is the usual reason a converted file fails.
Files saved in a legacy encoding show garbled accents; importers should detect or require UTF-8.

SRT format reference

Technical details

File name	sample-srt-100mb.srt
Format	SRT (SubRip subtitles)
Extension	.srt
MIME type	application/x-subrip
Size	104,857,600 bytes (100 MB)
Kind	Text
SHA-256	d694f4191193cb184e8ef4f5f3d3c09eb43ec34b0d47e0cbb7c77493300f8a20
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	Subtitles

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

On Windows, run Get-FileHash sample-srt-100mb.srt -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 SRT file?: 875,493 numbered subtitle cues, one every 137 ms and each shown for 123 ms, with up to three lines of text of at most 42 characters. The last cue repeats "End of sample" lines to bring the file to the exact size.
How long are the cues?: Each cue lasts three seconds and a new cue starts every four seconds.

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