100 KB JPG sample file
A JPG file of exactly 102,400 bytes. It is a valid JPEG image file, generated for this site and checked with an independent parser.
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sample-jpg-100kb.jpg
100 KB102,400 bytes
Download 100 KB JPG
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- Type
- image/jpeg
- SHA-256
fe4b903ee4251368426a66bbcb50f0e131ae04ec115284b38fa15e3f72b4a19a- Direct URL
https://sampletestfiles.com/downloads/jpg/sample-jpg-100kb.jpg
What is in this file
A 580 × 434 test card with fine grain, encoded as a baseline JPEG at quality 90. 185 bytes of JPEG comment (COM) segment bring the file to the exact size.
| Dimensions | 580 × 434 px |
|---|---|
| Encoding | Baseline DCT, Huffman |
| Chroma subsampling | 4:4:4 |
| Quality | 90 |
| Metadata | JFIF header and a comment, no EXIF |
| Progressive | No |
First bytes of the file
The first 64 bytes of sample-jpg-100kb.jpg as a hex dump: offset, bytes, then the same bytes as text. The JPG signature is FF D8 FF.
00000000 ff d8 ff e0 00 10 4a 46 49 46 00 01 01 00 00 01 |......JFIF......|
00000010 00 01 00 00 ff fe 00 b7 53 61 6d 70 6c 65 54 65 |........SampleTe|
00000020 73 74 46 69 6c 65 73 20 73 61 6d 70 6c 65 20 69 |stFiles sample i|
00000030 6d 61 67 65 2e 20 41 6c 69 67 6e 6d 65 6e 74 20 |mage. Alignment |Preview
Displays the file in your browser.
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
- Checking maximum file-size and dimension rules
- Measuring image optimisation
Testing notes for JPG
- Photos from phones carry EXIF data including location; the samples here contain none.
- A small file can decode to a huge bitmap. Validate pixel dimensions as well as bytes, or a 5 MB upload can demand hundreds of megabytes of memory.
Technical details
| File name | sample-jpg-100kb.jpg |
|---|---|
| Format | JPG (JPEG image) |
| Extension | .jpg |
| MIME type | image/jpeg |
| Size | 102,400 bytes (100 KB) |
| Kind | Binary |
| Signature | FF D8 FF |
| SHA-256 | fe4b903ee4251368426a66bbcb50f0e131ae04ec115284b38fa15e3f72b4a19a |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Images |
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-jpg-100kb.jpg 'https://sampletestfiles.com/downloads/jpg/sample-jpg-100kb.jpg'
sha256sum sample-jpg-100kb.jpg # Linux
shasum -a 256 sample-jpg-100kb.jpg # macOSOn Windows, run Get-FileHash sample-jpg-100kb.jpg -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 JPG file?
- A 580 × 434 test card with fine grain, encoded as a baseline JPEG at quality 90. 185 bytes of JPEG comment (COM) segment bring the file to the exact size.
- Why do larger samples have larger pixel dimensions?
- The quality setting is fixed at 90, so the only way to reach a bigger file is a bigger picture. The dimensions are listed on each download page.