10 KB WebP sample file
A WebP file of exactly 10,240 bytes. It is a valid WebP image file, generated for this site and checked with an independent parser.
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sample-webp-10kb.webp
10 KB10,240 bytes
Download 10 KB WebP
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- Type
- image/webp
- SHA-256
f5b6853f4ca35a360957b7fd4d14ae46b7f035df319977a54baa73330c7bb808- Direct URL
https://sampletestfiles.com/downloads/webp/sample-webp-10kb.webp
What is in this file
A 66 × 48 lossless test card coded with literal pixels only, so the size is set by the pixel count. 574 bytes of XMP metadata, most of it standard whitespace padding, bring the file to the exact size.
| Dimensions | 66 × 48 px |
|---|---|
| Encoding | Lossless (VP8L) |
| Container | Extended (VP8X) with XMP metadata |
| Transparency | No |
| Animated | No |
First bytes of the file
The first 64 bytes of sample-webp-10kb.webp as a hex dump: offset, bytes, then the same bytes as text. The WebP signature is 52 49 46 46 ?? ?? ?? ?? 57 45 42 50.
00000000 52 49 46 46 f8 27 00 00 57 45 42 50 56 50 38 58 |RIFF.'..WEBPVP8X|
00000010 0a 00 00 00 04 00 00 00 41 00 00 2f 00 00 56 50 |........A../..VP|
00000020 38 4c 9b 25 00 00 2f 41 c0 0b 00 80 40 00 00 00 |8L.%../A....@...|
00000030 e2 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|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
- Testing image CDNs and optimisation
- Testing whether upload forms accept modern formats
Testing notes for WebP
- Allow-lists written years ago often contain only JPEG, PNG and GIF, so WebP uploads fail on otherwise working forms.
- Sniffers that read only the first four bytes see RIFF and may confuse WebP with WAV or AVI.
Technical details
| File name | sample-webp-10kb.webp |
|---|---|
| Format | WebP (WebP image) |
| Extension | .webp |
| MIME type | image/webp |
| Size | 10,240 bytes (10 KB) |
| Kind | Binary |
| Signature | 52 49 46 46 ?? ?? ?? ?? 57 45 42 50 |
| SHA-256 | f5b6853f4ca35a360957b7fd4d14ae46b7f035df319977a54baa73330c7bb808 |
| 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-webp-10kb.webp 'https://sampletestfiles.com/downloads/webp/sample-webp-10kb.webp'
sha256sum sample-webp-10kb.webp # Linux
shasum -a 256 sample-webp-10kb.webp # macOSOn Windows, run Get-FileHash sample-webp-10kb.webp -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 WebP file?
- A 66 × 48 lossless test card coded with literal pixels only, so the size is set by the pixel count. 574 bytes of XMP metadata, most of it standard whitespace padding, bring the file to the exact size.
- Are the sample WebP files lossy or lossless?
- Lossless. They use the VP8L bitstream in an extended container with a small XMP metadata chunk.