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Sample ZIP Files — Free Download for Testing

Download free sample ZIP archive files for testing file extraction, upload handlers, and archive processing. Available from 1KB to 100MB. Includes password-protected and nested ZIP variants.

sample-1kb.zip

1.1 KB
Download
File details and verification
Filename
sample-1kb.zip
Exact size
1,163 bytes
Displayed size
1.1 KB
Catalog status
Valid catalog fixture
SHA-256
04d104c11bef76e652a3fbabfdf32dd484a5391461ae4dc05b4dc79a56c8e8de
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-1kb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-10kb.zip

10.8 KB
Download
File details and verification
Filename
sample-10kb.zip
Exact size
11,097 bytes
Displayed size
10.8 KB
Catalog status
Valid catalog fixture
SHA-256
ed152a503c8f6aa597e7a02af51aee217c27775b8126edf0675b018bccb1f114
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-10kb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-100kb.zip

104 KB
Download
File details and verification
Filename
sample-100kb.zip
Exact size
106,174 bytes
Displayed size
104 KB
Catalog status
Valid catalog fixture
SHA-256
6121cd2d8a028e8e390fca16114f1146a1284948191354f67dd383825e78d950
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-100kb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-500kb.zip

510 KB
Download
File details and verification
Filename
sample-500kb.zip
Exact size
522,444 bytes
Displayed size
510 KB
Catalog status
Valid catalog fixture
SHA-256
8bd1c1e127989ddaac1b0675ecd6f269ade00afdfc40397d805b67338ad514c1
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-500kb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-1mb.zip

1.05 MB
Download
File details and verification
Filename
sample-1mb.zip
Exact size
1,102,644 bytes
Displayed size
1.05 MB
Catalog status
Valid catalog fixture
SHA-256
bb63fb5a55ce96b8533aab7e7a18a58321ce007a361a5e68880ef483f436b35b
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-1mb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-5mb.zip

5.25 MB
Download
File details and verification
Filename
sample-5mb.zip
Exact size
5,503,944 bytes
Displayed size
5.25 MB
Catalog status
Valid catalog fixture
SHA-256
a6eab7be93fcbb76a3d28ad664389f3d714b6c6642b4a7cd256ac864196b5711
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-5mb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-10mb.zip

10.50 MB
Download
File details and verification
Filename
sample-10mb.zip
Exact size
11,005,644 bytes
Displayed size
10.50 MB
Catalog status
Valid catalog fixture
SHA-256
53dce6a1a24eec99df56d6bc419bd13da2f2d932dec62e277e0629b8f0b0decd
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-10mb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-50mb.zip

51.52 MB
Download
File details and verification
Filename
sample-50mb.zip
Exact size
54,018,744 bytes
Displayed size
51.52 MB
Catalog status
Valid catalog fixture
SHA-256
56d8d428105b391f4929c6b51a2ce05f0855400a65e843550a3dcd184f738784
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-50mb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-100mb.zip

103 MB
Download
File details and verification
Filename
sample-100mb.zip
Exact size
108,035,244 bytes
Displayed size
103 MB
Catalog status
Valid catalog fixture
SHA-256
5b5f8226ec04c7cd3baab655c8378508488a03178197b0e98476da2dec71b27e
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-100mb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-1gb.zip

1.00 GB
Download
File details and verification
Filename
sample-1gb.zip
Exact size
1,073,741,824 bytes
Displayed size
1.00 GB
Catalog status
Valid catalog fixture
SHA-256
b4d96d4d3ffa8c00ecc4b9c8aedd78be1e83ac712e797966f3ede9ac975dc0f6
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
Note
Contains one uncompressed generated payload.bin entry
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-1gb.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-with-password.zip

224 B

pw: test123

Download
File details and verification
Filename
sample-with-password.zip
Exact size
224 bytes
Displayed size
224 B
Catalog status
Valid catalog fixture
SHA-256
7afa7b76a147be1538ff479e7d00c6279957eff9a767e57dbbb5d8f2661f3790
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
Test password
test123
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-with-password.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-nested.zip

360 B
Download
File details and verification
Filename
sample-nested.zip
Exact size
360 bytes
Displayed size
360 B
Catalog status
Valid catalog fixture
SHA-256
896aeada5019546da98408e8bc6fc4d4752545d34db97efe37a5a10b33745966
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-nested.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-many-files.zip

125 KB
Download
File details and verification
Filename
sample-many-files.zip
Exact size
127,915 bytes
Displayed size
125 KB
Catalog status
Valid catalog fixture
SHA-256
aa018c218748fc662ef754c3f81605ca04b49260510240bc718800d8b40db38b
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-many-files.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-single-file.zip

103 KB
Download
File details and verification
Filename
sample-single-file.zip
Exact size
105,173 bytes
Displayed size
103 KB
Catalog status
Valid catalog fixture
SHA-256
2ba88a345ecfffeb940fe12af2caa67c9a99fb64f12aa203a83183013b9dad20
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-single-file.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

sample-corrupt.zip

7.3 KB
Download
File details and verification
Filename
sample-corrupt.zip
Exact size
7,462 bytes
Displayed size
7.3 KB
Catalog status
Intentionally invalid (negative test)
SHA-256
6c347d65b20b777535772f782634484268e420d3051e174b12ae457993de308f
Header signature
Matched (ZIP local header)
Verified on
2026-08-10
MIME type
application/zip
License
CC0 / Public Domain
Download URL
https://cdn.truefilesize.com/zip/sample-corrupt.zip

See how TrueFileSize generates and measures sample files, or review the editorial policy.

Use cases for sample ZIP files

  • Testing ZIP file upload and extraction in web apps
  • Verifying error handling for corrupt/invalid archives
  • Testing password-protected archive support
  • Load testing archive extraction performance
  • Validating ZIP file size limits in applications
  • Testing nested archive handling (ZIP inside ZIP)

ZIP file structure explained

[Local file header] → [File data] → [Data descriptor]
...repeated for each file...
[Central directory header] → [End of central directory]

ZIP uses the DEFLATE algorithm for compression. Files inside can be individually extracted without decompressing the entire archive.

How to create a ZIP file

Windows

Right-click → Send to → Compressed (zipped) folder

Linux / macOS

zip output.zip file1 file2 file3

Node.js (archiver)

const archiver = require('archiver');
const output = fs.createWriteStream('output.zip');
const archive = archiver('zip', { zlib: { level: 9 } });
archive.pipe(output);
archive.file('data.txt', { name: 'data.txt' });
archive.finalize();

Python

import zipfile
with zipfile.ZipFile('output.zip', 'w') as zf:
    zf.write('data.txt')

Testing with password-protected ZIP

Password: test123

Use to verify your app handles encrypted ZIP files correctly. Note: Legacy ZIP encryption (ZipCrypto) is weak — AES-256 ZIP encryption is not included in the standard ZIP spec.

Technical specifications

FormatZIP (PKZIP)
CompressionDEFLATE (most common)
EncryptionZipCrypto (legacy, weak)
Max file size4 GB per file (ZIP64 for larger)
PlatformUniversal — built into Windows, macOS, Linux

Frequently Asked Questions

Are there any files inside the ZIP that could be harmful?
No. All ZIP files contain safe, generated content — text files, placeholder images, and dummy data. No executables, no macros, no scripts.
What compression method do you use in these ZIP files?
DEFLATE — the standard and most widely supported ZIP compression method. Supported by all operating systems and archive tools without additional software.
Why would I need a corrupt ZIP file for testing?
The sample-corrupt.zip tests that your application gracefully handles invalid archives — showing an error message instead of crashing. Critical for any app that accepts ZIP uploads from users.
How do I test ZIP extraction in JavaScript/Node.js?
Popular libraries: adm-zip, jszip (browser + Node), archiver (create only), unzipper (streaming extraction). Example: const zip = new AdmZip('sample.zip'); zip.extractAllTo('./output');
What is the maximum ZIP file size your tool should support?
Standard ZIP supports up to 4GB per file and 65,535 files. ZIP64 extension removes these limits. Most modern tools (7-Zip, WinRAR, macOS Archive Utility) support ZIP64 automatically.

Other archive formats

RAR7ZDownload Tests

Related reading

·7 min

How to Fix ZIP Extraction Errors: 7 Common Causes

Diagnose ZIP extraction errors caused by corruption, wrong file types, passwords, compression methods, filenames, disk limits, or unsafe paths.

·7 min

Fix Unsupported File Type Errors — MIME Type & Extension Validation

Fix 'Unsupported file type' and 'Invalid file format' errors. Learn MIME type detection, magic bytes validation, extension whitelisting, and how to handle MIME type spoofing.

·8 min

Preventing Zip Bomb Attacks — Detection and Safe Extraction

What is a zip bomb, how it works (42.zip, nested recursion, quine), detection techniques, safe extraction with size limits, and testing with sample ZIPs.