10 KB GZ sample file
A GZ file of exactly 10,240 bytes. It is a valid Gzip compressed file file, generated for this site and checked with an independent parser.
Download
- Type
- application/gzip
- SHA-256
f6a7c3f4b3b50312b49249e9637d34614c585ad56b07d0c7d0fb93e9841e27ca- Direct URL
https://sampletestfiles.com/downloads/gz/sample-gz-10kb.gz
What is in this file
One gzip member that expands to sample.log, 683 access-log lines (111,533 bytes). 58 bytes of text in the optional gzip header comment field bring the file to the exact size.
| Compressed member | sample.log |
|---|---|
| Uncompressed size | 111,533 bytes |
| Compression method | Deflate |
| Members | 1 |
| Original file name stored | Yes |
First bytes of the file
The first 64 bytes of sample-gz-10kb.gz as a hex dump: offset, bytes, then the same bytes as text. The GZ signature is 1F 8B 08.
00000000 1f 8b 08 18 00 b9 55 69 00 ff 73 61 6d 70 6c 65 |......Ui..sample|
00000010 2e 6c 6f 67 00 53 61 6d 70 6c 65 54 65 73 74 46 |.log.SampleTestF|
00000020 69 6c 65 73 20 73 61 6d 70 6c 65 20 61 72 63 68 |iles sample arch|
00000030 69 76 65 2e 20 41 6c 69 67 6e 6d 65 6e 74 20 70 |ive. Alignment p|Preview
GZ files cannot be shown in a browser. Download the file and open it with gzip and gunzip.
Where 10 KB matters
A 10,240-byte file that still arrives in the first round trip of a new connection. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| TCP initial congestion window | About 14.6 KB (10 segments) | A 10 KB response fits in the first flight of packets; the 25 KB sample does not. |
| nginx and Apache request headers | 8 KB per header line by default | Data this large must go in the request body. |
| webpack asset modules | 8 KB by default | Assets over the threshold are emitted as files instead of data URIs. |
Use this file for
- Checking thumbnail and icon handling
- Testing streaming decompression
- Testing decompression of uploads and log archives
Testing notes for GZ
- If a server sends a .gz file with Content-Encoding: gzip, the client transparently decompresses it and saves a file whose content does not match its name.
- A small .gz can decompress to gigabytes. Stream and cap the output rather than inflating it into memory.
Technical details
| File name | sample-gz-10kb.gz |
|---|---|
| Format | GZ (Gzip compressed file) |
| Extension | .gz |
| MIME type | application/gzip |
| Size | 10,240 bytes (10 KB) |
| Kind | Binary |
| Signature | 1F 8B 08 |
| SHA-256 | f6a7c3f4b3b50312b49249e9637d34614c585ad56b07d0c7d0fb93e9841e27ca |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Not available for this format; details only |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Archives |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-gz-10kb.gz 'https://sampletestfiles.com/downloads/gz/sample-gz-10kb.gz'
sha256sum sample-gz-10kb.gz # Linux
shasum -a 256 sample-gz-10kb.gz # macOSOn Windows, run Get-FileHash sample-gz-10kb.gz -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 10 KB?
- Yes. It is 10,240 bytes, which is 10 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 10 KB GZ file?
- One gzip member that expands to sample.log, 683 access-log lines (111,533 bytes). 58 bytes of text in the optional gzip header comment field bring the file to the exact size.
- What do the sample .gz files decompress to?
- A text file named sample.log containing web-server access log lines. The uncompressed size is shown on each download page.