WebP to JPG Converter
Turn a WebP picture into an ordinary JPEG that any program will open.
Results
What this tool does
WebP is what a great many websites now hand you when you save an image, and it is also what a great many older programs refuse to open. Converting to JPEG solves that at the cost of a larger file, since WebP compresses better. Choose the image and the converted copy appears, ready to download. As always, the file is read and rewritten by your own browser and never leaves the machine.
Formula
difference = (size before − size after) ÷ size before
Variables
| Symbol | Meaning | Unit |
|---|---|---|
quality | Quality | % |
bytes_in | Original size, in bytes | — |
bytes_out | New size, in bytes | — |
OUT | New file size | — |
BF | It was | — |
SV | Difference | — |
PC | Saved | % |
DR | Smaller or bigger | — |
Worked example
- Quality90 %
- Original size, in bytes210,000
- New size, in bytes340,000
- New file size332.0 kB
- It was205.1 kB
- Difference127.0 kB
- Saved-61.9 %
- Smaller or biggerBigger
Limitations
- The calculation runs entirely in your browser. The values you type are never sent to a server.
Frequently asked questions
Why did the file get bigger?
Because WebP is simply better at compressing than JPEG, often by a quarter to a third for the same visible quality. Going the other way undoes that advantage. The reason to convert is not size but reach: WebP is what the picture was saved as, and JPEG is what the program in front of you will actually open.