10MB TXT File Download — Large Stress Test

Download a free 10MB plain text file with 500,000 lines. Extreme stress test for text processing pipelines, streaming parsers, virtualized text viewers, and large file upload handling.

sample-10mb.txt

10 MB

500,000 lines

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Verified file details

Filename: sample-10mb.txt
Exact size: 10,485,760 bytes
Displayed size: 10 MB
MIME type: text/plain
Lines: 500,000
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/sample-10mb.txt

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Other TXT files

sample-1kb.txt

1 KB

50 lines

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Verified file details

Filename: sample-1kb.txt
Exact size: 1,024 bytes
Displayed size: 1 KB
MIME type: text/plain
Lines: 50
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/sample-1kb.txt

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sample-10kb.txt

10 KB

500 lines

Download

Verified file details

Filename: sample-10kb.txt
Exact size: 10,240 bytes
Displayed size: 10 KB
MIME type: text/plain
Lines: 500
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/sample-10kb.txt

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sample-100kb.txt

100 KB

5,000 lines

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Verified file details

Filename: sample-100kb.txt
Exact size: 102,400 bytes
Displayed size: 100 KB
MIME type: text/plain
Lines: 5,000
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/sample-100kb.txt

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sample-1mb.txt

1 MB

50,000 lines

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Verified file details

Filename: sample-1mb.txt
Exact size: 1,048,576 bytes
Displayed size: 1 MB
MIME type: text/plain
Lines: 50,000
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/sample-1mb.txt

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lorem-ipsum.txt

2.6 KB

100 lines

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Verified file details

Filename: lorem-ipsum.txt
Exact size: 2,708 bytes
Displayed size: 2.6 KB
MIME type: text/plain
Lines: 100
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/lorem-ipsum.txt

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words-list.txt

40.0 KB

5,000 lines

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Verified file details

Filename: words-list.txt
Exact size: 40,959 bytes
Displayed size: 40.0 KB
MIME type: text/plain
Lines: 5,000
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/txt/words-list.txt

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Frequently Asked Questions

Can browsers handle a 10MB text file?

Fetching and parsing 10MB of text in a browser is fine (~100–200ms). However, rendering 500K lines in the DOM will freeze the page. Use virtualization (react-window) to display only visible lines.

Should I read a 10MB text file into memory?

For server-side processing, yes — 10MB is small for modern servers. For browser/mobile apps, use streaming (ReadableStream) or chunked reading to avoid blocking the main thread.

How do I efficiently search through 500K lines?

Use a streaming approach: read line by line without loading the entire file. In Node.js, use readline.createInterface(). In Python, iterate the file object directly. Avoid loading the full content into a string for regex matching.