1 KB WebP sample
A WebP file of exactly 1,024 bytes. It is a valid WebP image file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 1 KB sample, test or dummy WebP file.
Download
sample-webp-1kb.webp
1 KB1,024 bytes
Download 1 KB WebPCreated in your browser in a few seconds, then checked against the SHA-256 checksum. The file is not uploaded anywhere. No sign-up.
- Type
- image/webp
- SHA-256
9197210f493b047651e96ac9750b0df45933f16bf6cd4ea2dd16f332bf9807af- Delivery
- Created in your browser from static generator assets (how it works).
What is in this file
A 15 × 11 lossless test card coded with literal pixels only, so the size is set by the pixel count. 360 bytes of XMP metadata, most of it standard whitespace padding, bring the file to the exact size.
| Dimensions | 15 × 11 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-1kb.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 03 00 00 57 45 42 50 56 50 38 58 |RIFF....WEBPVP8X|
00000010 0a 00 00 00 04 00 00 00 0e 00 00 0a 00 00 56 50 |..............VP|
00000020 38 4c 69 02 00 00 2f 0e 80 02 00 80 40 00 00 00 |8Li.../.....@...|
00000030 e2 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|Preview
Creates the file in your browser and shows it here.
Where 1 KB matters
The smallest practical test file: 1,024 bytes, small enough to travel in a single network packet. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| Ethernet | 1,500 bytes (typical MTU) | A 1 KB payload fits in one packet with its headers. |
| Browser cookies | 4,096 bytes per cookie | 1 KB is well inside the limit; the 5 KB sample is over it. |
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-1kb.webp |
|---|---|
| Format | WebP (WebP image) |
| Extension | .webp |
| MIME type | image/webp |
| Size | 1,024 bytes (1 KB) |
| Kind | Binary |
| Signature | 52 49 46 46 ?? ?? ?? ?? 57 45 42 50 |
| SHA-256 | 9197210f493b047651e96ac9750b0df45933f16bf6cd4ea2dd16f332bf9807af |
| Created | 2026-10-23 |
| Validation | See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility. |
| Preview | Available on this page |
| Source | Generated in your browser by this site's generator; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Images |
Check the stated structure and checksum against your application requirements. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Verify your copy
This file is created in your browser, so it has no direct URL for curl or wget. The generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.
sha256sum sample-webp-1kb.webp # Linux
shasum -a 256 sample-webp-1kb.webp # macOSOn Windows, run Get-FileHash sample-webp-1kb.webp -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.
Related files
Questions about this file
- Is this file exactly 1 KB?
- Yes. It is 1,024 bytes, which is 1 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 1 KB WebP file?
- A 15 × 11 lossless test card coded with literal pixels only, so the size is set by the pixel count. 360 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.