100 KB GZ sample file
A GZ file of exactly 102,400 bytes. It is a valid Gzip compressed file file, generated for this site and checked with an independent parser.
Download
sample-gz-100kb.gz
100 KB102,400 bytes
Download 100 KB GZDirect download. No sign-up and no waiting.
- Type
- application/gzip
- SHA-256
0e4fddb05f684b44d96ed07d72f329039d6f18deb7e304c4b926798678ab5569- Direct URL
https://sampletestfiles.com/downloads/gz/sample-gz-100kb.gz
What is in this file
One gzip member that expands to sample.log, 7,226 access-log lines (1,180,002 bytes). 263 bytes of text in the optional gzip header comment field bring the file to the exact size.
| Compressed member | sample.log |
|---|---|
| Uncompressed size | 1,180,002 bytes |
| Compression method | Deflate |
| Members | 1 |
| Original file name stored | Yes |
First bytes of the file
The first 64 bytes of sample-gz-100kb.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 100 KB matters
A 102,400-byte file that sits exactly on the default request-body limit of Express. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| Express body parsers | 100 KB (102,400 bytes) by default | A request body of exactly this size passes; anything larger returns 413 Payload Too Large. |
| Gmail message clipping | About 102 KB of HTML | Longer messages are truncated behind a "view entire message" link. |
| Amazon DynamoDB items | 400 KB per item | 100 KB fits; the 500 KB sample does not. |
Use this file for
- Checking email size handling
- Testing streaming decompression
- Testing decompression of uploads and log archives
Testing notes for GZ
- A small .gz can decompress to gigabytes. Stream and cap the output rather than inflating it into memory.
- 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.
Technical details
| File name | sample-gz-100kb.gz |
|---|---|
| Format | GZ (Gzip compressed file) |
| Extension | .gz |
| MIME type | application/gzip |
| Size | 102,400 bytes (100 KB) |
| Kind | Binary |
| Signature | 1F 8B 08 |
| SHA-256 | 0e4fddb05f684b44d96ed07d72f329039d6f18deb7e304c4b926798678ab5569 |
| 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-100kb.gz 'https://sampletestfiles.com/downloads/gz/sample-gz-100kb.gz'
sha256sum sample-gz-100kb.gz # Linux
shasum -a 256 sample-gz-100kb.gz # macOSOn Windows, run Get-FileHash sample-gz-100kb.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 100 KB?
- Yes. It is 102,400 bytes, which is 100 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 100 KB GZ file?
- One gzip member that expands to sample.log, 7,226 access-log lines (1,180,002 bytes). 263 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.