JPG to WebP
Convert JPG images to WebP right in your browser. JPG is what cameras, phones and most of the web produce, already compressed once and with no transparency. WebP produces noticeably smaller files at similar quality, ideal for the web.
- Free, no watermarks
- Files deleted after 1 hour
- Runs in your browser
- No account needed
Why use SnapFetch
- Turns JPG files into standard WebP images in one click
- Runs server-side with no quality tricks - no watermark, no signup
- Your image is deleted from our servers after 1 hour
How it works
- 1
Choose or drag in a JPG image
- 2
We convert it to WebP
- 3
Download your WebP image
- 4
Files are deleted from our servers after 1 hour
When to use JPG to WebP
Convert when the destination will not take JPG or when the trade-offs of WebP suit you better. A JPG has already been through lossy compression once, with its colour detail stored at reduced resolution, and it has no alpha channel at all. WebP keeps near-identical quality at a much smaller file size than JPG or PNG, and supports transparency. Support is universal in current browsers but patchy in older desktop software. Because the source is already lossy, this is a second generation of compression rather than a first. Re-encoding cannot recover what the original discarded, and it can add its own artefacts on top - usually around the high-contrast edges the first pass had already softened. Converting once is fine; it is converting repeatedly between lossy formats that visibly degrades a picture. Keep the JPG you started from rather than re-converting the output later.
Specifications & limits
- Accepted input
- JPG and JPEG (.jpg, .jpeg)
- Output format
- WebP (lossy compression)
- Compression on input
- JPG is already lossy - some detail was discarded before upload
- Transparency
- Not applicable - JPG has no alpha channel, so there is no transparency to carry over
- Maximum dimensions
- 8000 x 8000 pixels
- Maximum file size
- 20 MB per upload
- File retention
- Deleted from our servers 1 hour after upload
Troubleshooting
The background is white and I wanted it transparent
A JPG cannot store transparency in the first place, so there is none to carry across - the white was already part of the picture. To get a transparent background you need Remove Background, not a format conversion.
The WebP looks worse than the JPG it came from
Each lossy encode discards a little more. The JPG had already lost detail before it reached us, and this pass re-encodes what was left. Start from the highest-quality original you still have, and do not feed the result back through another conversion.
The output is larger than the original
Unusual, but it happens when the JPG was already heavily compressed. Try Compress Image instead of converting.
The upload is rejected before anything happens
The file is over the 20 MB cap. Compress it first, or split a long PDF into smaller files and process them separately.
References
The published specification for the formats involved, and the open-source software that actually performs this conversion.
- Image file type guide - MDN
A neutral comparison of when to use each web image format.
- WebP - Google Developers
Google's WebP documentation, including its size comparisons against JPEG and PNG.
- Pillow documentation
The imaging library used for our image conversion, resizing and compression.
Frequently asked questions
A little. JPG is already lossy, so converting to WebP is a second round of compression rather than a first - it cannot restore what was lost earlier, and it can add its own artefacts around high-contrast edges. Converting once is fine; repeatedly round-tripping between lossy formats is what does visible damage.
From the blog
WebP: When It's Worth It, and When It Isn't
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