Will these actually extract?

Yes. Each one is a real, valid archive - ZIP, 7Z, and TAR.GZ bundle real sample files, and even the RAR is a genuine (if minimal) archive - so extraction works with any standard tool.

What are they useful for, then?

Checking an upload size limit on a website or app, accepted archive extensions, an email attachment limit, or storage and bandwidth handling.

How big is the largest file?

About 10MB - big enough to exercise chunked or resumable upload handling without requiring a huge download just to test with.

Can I use these in an automated test suite?

Yes. Each file has a stable, direct URL, so you can fetch it in a CI pipeline instead of committing large binary fixtures to your repository.

Archives

Sample archive files in ZIP, RAR, 7Z, and GZ (tar.gz), including a 1GB file for large-upload testing.

What these files actually are

Each file below is a real, valid archive - built with zip, 7z, and tar+gzip around real sample content, plus one small real RAR fixture - so opening or extracting it actually works.

sample-archive-100mb.zip

ZIP · 98 MB VirusTotal report

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sample-archive-50mb.zip

ZIP · 50 MB VirusTotal report

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sample-archive-large.zip

ZIP · 10 MB VirusTotal report

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sample-archive-medium.zip

ZIP · 899 KB VirusTotal report

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sample-archive-small.zip

ZIP · 600 B VirusTotal report

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sample-archive.7z

7Z · 899 KB VirusTotal report

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sample-archive.rar

RAR · 82 B VirusTotal report

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sample-archive.tar.gz

GZ · 899 KB VirusTotal report

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Are these files safe to download?

Every sample file is generated by us — no executable code, no macros. Files are served over HTTPS from our CDN, each with a SHA-256 checksum so you can verify your download and a link to an independent VirusTotal scan report.

Check this site independently:

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Common use cases

Backup pipeline testing

Push a large archive through a backup or sync job to see how it handles a big single-file transfer.

Multipart/chunked upload testing

Use the largest archive to test resumable or chunked upload behavior and timeout handling at scale.

Extraction-service negative testing

Confirm an unzip or extraction service errors cleanly on an invalid archive instead of hanging or crashing.

Storage quota testing

Fill a test bucket or folder with archives of varying sizes to see how the system behaves near a quota.

Formats & variants

ZIP: The most universally supported archive format, with native OS support on Windows and macOS.
RAR: Proprietary format common for media releases; needs a dedicated app to extract.
7Z: Open format that typically gives the best compression ratio of the four.
GZ (.tar.gz): Common on Unix and Linux systems, usually paired with tar for multi-file archives.

Frequently asked questions

Will these actually extract?: Yes. Each one is a real, valid archive - ZIP, 7Z, and TAR.GZ bundle real sample files, and even the RAR is a genuine (if minimal) archive - so extraction works with any standard tool.
What are they useful for, then?: Checking an upload size limit on a website or app, accepted archive extensions, an email attachment limit, or storage and bandwidth handling.
How big is the largest file?: About 10MB - big enough to exercise chunked or resumable upload handling without requiring a huge download just to test with.
Can I use these in an automated test suite?: Yes. Each file has a stable, direct URL, so you can fetch it in a CI pipeline instead of committing large binary fixtures to your repository.
Which formats are available?: ZIP, RAR, 7Z, and GZ.