Convert PNG to WebP Online
WebP supports both lossless and lossy modes and full alpha-channel transparency — making it the ideal modern replacement for PNG on the web.
↑ Select output format — all files convert to this format
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Why convert PNG to WebP?
WebP's lossless mode produces files 20–35% smaller than equivalent PNGs while preserving every pixel exactly — same image, fewer bytes. Its lossy mode (with alpha) goes much further, often shrinking PNGs by 60–80% with quality losses that are invisible at typical web viewing sizes.
Crucially, WebP keeps the alpha channel. Unlike JPG, you don't lose transparent backgrounds when you convert, which makes WebP a true drop-in replacement for PNG on the web. Logos, icons, UI elements, and product cutouts all convert cleanly.
Browser support is now universal — every major browser, including Safari and Edge, has supported WebP for years. There's no longer any reason to ship raw PNGs to web users when WebP gives you the same visual result for a fraction of the bandwidth.
Common use cases
- Replacing PNG product images on e-commerce sites
- Compressing UI icon sets for SPAs
- Optimizing logos with transparent backgrounds
- Reducing the size of game sprite sheets
How to convert PNG to WebP
- Upload your PNG files — drag and drop into the uploader above, or click to browse. Up to 20 files per batch, 25 MB each.
- Confirm WebP as the output format — the format selector is already pre-selected for this conversion. You can change it before clicking Convert if you change your mind.
- Click Convert — your PNG files are processed on our server in seconds. A progress bar shows live status for each file.
- Download the ZIP — your converted WebP files are bundled into a ZIP for one-click download. Source files are deleted immediately afterwards.
PNG to WebP — Frequently Asked Questions
Is the PNG to WebP converter really free?
Yes — completely free, with no signup, no credit card, no watermarks, and no file count limits. The full feature set is available without any account.
Are my PNG files private?
Yes. Files are stored in a private directory outside the web root, never shared with anyone, and deleted immediately after you download your ZIP.
How many PNG files can I convert at once?
Up to 20 PNG files per batch, with a maximum of 25 MB per file. There are no limits on the number of batches you can run.
Does the converted WebP keep the same image quality?
Quality is essentially indistinguishable from the PNG source at typical viewing sizes. WebP uses lossy compression, but the quality settings are tuned for high fidelity, so the conversion produces visually identical results for almost all images.
Will the WebP files work in Safari?
Yes. Safari has supported WebP since version 14.0 (released in 2020), and every other major browser has supported it for years. WebP is now safe to use as a primary web image format.
Related image conversions
Or browse the full supported conversions matrix on the homepage.