Converting images to WebP, and when not to
WebP beats JPG and PNG at the same visual quality. Support is no longer the issue it was, but there are still two cases to avoid it.
WebP is the format that should be your default for web images now. At the same visual quality it is typically 25 to 35 percent smaller than JPG, and considerably smaller than PNG for anything photographic. It also supports transparency, which historically forced people into PNG and its much larger files.
Browser support stopped being a real objection years ago. Two cases still argue for keeping the original: images that users will download and open in older desktop software, and images going into print workflows, where JPG or TIFF remains expected. For everything on a web page, WebP is the better choice, and the converter is in ToolHub.
Convert Image to WebP: the facts that matter
| Input | JPG, PNG, and common formats |
| Saving over JPG | 25 to 35 percent at equal quality |
| Saving over PNG | Often much larger, for photographic content |
| Transparency | Supported |
| Keep original for | Print workflows and user-downloaded files |
How to do it, step by step
- 1Open the WebP converter in ToolHub and add your images.
- 2Set quality around 80 percent. WebP holds up better than JPG at the same number.
- 3Convert, then compare the file sizes. The saving over JPG should be visible immediately.
- 4Check any image that had transparency. WebP keeps it, but confirm rather than assume.
- 5On a website, serve WebP with a fallback if you support very old clients.
Three things worth knowing
- Make WebP the default for web images and keep JPG only where something outside the browser will open the file.
- Combine with resizing. Format conversion and correct dimensions together are what make pages fast.
- Run siteIQ on a site to find which images are still costing you load time.
Common problems, solved
Where to run it
This tool is part of the ToolHub tool library, a library of over 1,000 browser-based tools covering PDF, image, video, audio, text and developer work. Everything runs in the browser and none of it needs an account.
ToolHub is built by codaiman.com, an AI-first software company in Ahmedabad. Related to this page: siteIQ ai-powered website auditing: seo analysis, performance testing, security checks, accessibility reports and backlink analysis.
Convert Image to WebP, in the browser: no install, no sign-up, no upload queue. Part of the ToolHub library from CodeAiMan.
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