1GB Test File Download — Gigabyte Speed Test
Download a free 1 GB test file for speed testing, upload API validation, and bandwidth measurement. Pure binary data, served from CDN.
test-1gb.bin
1 GB
File details and verification
- Filename
- test-1gb.bin
- Exact size
- 1,073,741,824 bytes
- Displayed size
- 1 GB
- Catalog status
- Valid catalog fixture
- SHA-256
- 97a0e58f3b9bf452ee1e0e7867fc30efd8d6e0fd5cce93311a853d286c2e8cbd
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-1gb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
Other test file sizes
test-1mb.bin
1 MB
File details and verification
- Filename
- test-1mb.bin
- Exact size
- 1,048,576 bytes
- Displayed size
- 1 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- a7fc76e5b7f6d9551e3658ca60aeb008238cbe3fea9cb2d17b52d049d297b50a
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-1mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
test-5mb.bin
5 MB
File details and verification
- Filename
- test-5mb.bin
- Exact size
- 5,242,880 bytes
- Displayed size
- 5 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 22bf07aae7e1ac15c10e69c3320d287c79efd7058ea03eda01271eaae7d14b92
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-5mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
test-10mb.bin
10 MB
File details and verification
- Filename
- test-10mb.bin
- Exact size
- 10,485,760 bytes
- Displayed size
- 10 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 7d04fde0818e71734edc44c306e1227e564f3e6d9b129df577066d677e5898a3
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-10mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
test-50mb.bin
50 MB
File details and verification
- Filename
- test-50mb.bin
- Exact size
- 52,428,800 bytes
- Displayed size
- 50 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 86ce11f277af3f983a0e356aa19735aca11b11294fb2beb4c5e52945ad06cee0
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-50mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
test-100mb.bin
100 MB
File details and verification
- Filename
- test-100mb.bin
- Exact size
- 104,857,600 bytes
- Displayed size
- 100 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 981f50f01d3cf8f48528f916391e9cb4d96203e21b7e633117283dfa442c242d
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-100mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
test-200mb.bin
200 MB
File details and verification
- Filename
- test-200mb.bin
- Exact size
- 209,715,200 bytes
- Displayed size
- 200 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- aa0eb93157466e802e3313aa6e098121d31868be7cf7152bcfb3a5d1805cffd1
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-200mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
test-500mb.bin
500 MB
File details and verification
- Filename
- test-500mb.bin
- Exact size
- 524,288,000 bytes
- Displayed size
- 500 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 19a1b842611bcc8ccf4dc2ae057dc0119d946684a6b8ce9566f288ff841380c6
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/test/test-500mb.bin
See how TrueFileSize generates and measures sample files, or review the editorial policy.
Frequently Asked Questions
Why would I need a 1GB test file?
1GB files are used for real-world speed testing: ISP bandwidth verification, cloud storage upload limits, backup system testing, and verifying that your application handles multi-gigabyte files without crashing or timing out.
How long does it take to download 1GB?
On a 100 Mbps connection: ~80 seconds. On 1 Gbps fiber: ~8 seconds. On 10 Mbps: ~13 minutes.
My download keeps failing at 1GB — why?
Common causes: browser timeout settings, proxy/firewall limits on file size, ISP throttling, or insufficient disk space. Try using curl or wget for more reliable large downloads.