Test files that tell you what they break.

Q: Where can I download a sample CSV file with 1000 rows?

HEXAQA offers ready-made CSV test files and an on-demand generator at /gen?type=csv&rows=1000&cols=5 that streams a CSV of any size, free.

Q: What is the EICAR test file?

EICAR is a harmless 68-byte string that every antivirus is required to detect as if it were malware, so you can safely test that your scanning works. HEXAQA hosts it on a separate subdomain.

Q: How do I get a large test file for upload testing?

HEXAQA has a size ladder from 0 bytes to 250 MB, and a Worker that streams any size on demand (e.g. /gen?type=bin&size=2gb), with free bandwidth.

Q: Are these files safe and free to use?

Yes. Every file is generated from source (no third-party copyright), free to download and redistribute, and has a published SHA-256 digest so you can verify it.

A deterministic corpus for QA and test engineers — stable URLs, published SHA-256 digests, and a note on the exact bug each file is built to catch. Nothing tracked, nothing to sign up for.

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Need a file that isn't in the catalog?

The on-demand generator streams a file of any size — binary, CSV, JSON, NDJSON, XML, SQL, log, UUIDs or ZIP — straight from a Worker, so nothing is stored and nothing is capped. It also serves httpbin-style endpoints for slow, truncated and error responses that a static file can't reproduce.

Open the generator → Or build files with CLI commands

Popular test & sample files

The files QA and dev teams download most — each on its own page with a download link, SHA-256, and what it catches.

Sample CSV file (100 rows)Clean CSV for import testing

Large CSV file (1,000,000 rows)~34 MB, for performance testing

Corrupt PDF fileBroken xref, for error handling

Sample PDF fileMinimal valid 1-page PDF

100 MB test fileLarge file for upload testing

250 MB test fileThe biggest stored file

Sample XLSX (Excel) fileReal OOXML workbook with a formula

Sample DOCX (Word) fileReal Word document

Animated GIF sample4-frame looping GIF

Sample JPEG fileBaseline JPEG, from source

Sample JSON fileValid JSON with every type

Sample ZIP fileClean archive for extraction tests

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Frequently asked

Where can I download a sample CSV file with 1000 rows?

Use the ready-made CSV files or the on-demand generator — /gen?type=csv&rows=1000&cols=5 streams a CSV of any size, free.

What is the EICAR test file?

A harmless 68-byte string every antivirus must detect as if it were malware, so you can safely test that scanning works. It's on the security page (served from a separate host).

How do I get a large test file for upload testing?

Download from the size ladder (0 bytes → 250 MB) or stream any size on demand: /gen?type=bin&size=2gb. Bandwidth is free.

Are these files safe and free to use?

Yes — every file is generated from source (no third-party copyright), free to download and redistribute, with a published SHA-256 so you can verify it.