Sample 7Z File — 1MB Download

Download a free 1MB 7z archive. A compact file for quick testing of 7z format detection, LZMA/LZMA2 decompression support, and basic archive handling workflows.

sample-1mb.7z

1.00 MB

Download

File details and verification

Filename: sample-1mb.7z
Exact size: 1,048,789 bytes
Displayed size: 1.00 MB
Catalog status: Valid catalog fixture
SHA-256: a56c77880278bd3f30b39da2b8b18425cfae5ca15630cdf4807bef4bfbf0cf38
Header signature: Matched (7z)
Verified on: 2026-08-10
MIME type: application/x-7z-compressed
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/7z/sample-1mb.7z

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

Other 7Z files

sample-10mb.7z

10.00 MB

Download

File details and verification

Filename: sample-10mb.7z
Exact size: 10,486,703 bytes
Displayed size: 10.00 MB
Catalog status: Valid catalog fixture
SHA-256: 69e1cacc926349c6aa81de39ace0ba337301aeb51e38a916683de833da73dda3
Header signature: Matched (7z)
Verified on: 2026-08-10
MIME type: application/x-7z-compressed
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/7z/sample-10mb.7z

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

sample-50mb.7z

50.00 MB

Download

File details and verification

Filename: sample-50mb.7z
Exact size: 52,432,733 bytes
Displayed size: 50.00 MB
Catalog status: Valid catalog fixture
SHA-256: a6a2f9a797107ecd488ed0f8b24354c305bcd37ab2903159ba96b3500ef08b9a
Header signature: Matched (7z)
Verified on: 2026-08-10
MIME type: application/x-7z-compressed
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/7z/sample-50mb.7z

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

Frequently Asked Questions

What compression does 7z use?

7z primarily uses LZMA/LZMA2 compression, which typically achieves 30–70% better compression ratios than ZIP's Deflate algorithm. It also supports PPMD, BCJ, and BZip2 methods.

How do I extract 7z files programmatically?

Node.js: node-7z or 7zip-min. Python: py7zr (pure Python) or pylzma. Java: Apache Commons Compress. Go: go7z package. All require LZMA decoder support.