10 KB JPG sample file
A JPG file of exactly 10,240 bytes. It is a valid JPEG image file, generated for this site and checked with an independent parser.
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sample-jpg-10kb.jpg
10 KB10,240 bytes
Download 10 KB JPG
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- Type
- image/jpeg
- SHA-256
486f8cf26a0b36a230188d425f7b84691c7c667aeb304c0801298716d296f7cd- Direct URL
https://sampletestfiles.com/downloads/jpg/sample-jpg-10kb.jpg
What is in this file
A 152 × 113 test card with fine grain, encoded as a baseline JPEG at quality 90. 36 bytes of JPEG comment (COM) segment bring the file to the exact size.
| Dimensions | 152 × 113 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-10kb.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 22 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 ff db 00 43 00 03 02 02 |mage. Al...C....|Preview
Displays the file in your browser.
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
- Measuring image optimisation
- Testing lazy loading and responsive images
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-10kb.jpg |
|---|---|
| Format | JPG (JPEG image) |
| Extension | .jpg |
| MIME type | image/jpeg |
| Size | 10,240 bytes (10 KB) |
| Kind | Binary |
| Signature | FF D8 FF |
| SHA-256 | 486f8cf26a0b36a230188d425f7b84691c7c667aeb304c0801298716d296f7cd |
| 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-10kb.jpg 'https://sampletestfiles.com/downloads/jpg/sample-jpg-10kb.jpg'
sha256sum sample-jpg-10kb.jpg # Linux
shasum -a 256 sample-jpg-10kb.jpg # macOSOn Windows, run Get-FileHash sample-jpg-10kb.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 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 JPG file?
- A 152 × 113 test card with fine grain, encoded as a baseline JPEG at quality 90. 36 bytes of JPEG comment (COM) segment bring the file to the exact size.
- What do the sample JPGs show?
- A test card with colour bars, a grey ramp, a checkerboard and a gradient, with light grain so the file compresses like a photograph.