Convert JPG and PNG images to genuine WebP files in your browser. Smaller files, same look — perfect for faster websites. Free, unlimited, no upload.
Drag & drop or click to upload
JPG, PNG, WebP up to 50MB
Output format: WebP — downloads will be .webp files.
Files are processed locally and never uploaded.
Drop your JPG or PNG images into the uploader above — they never leave your device.
The tool re-encodes each image as a genuine WebP file using your browser's canvas encoder.
Download the .webp files individually or as a batch and use them anywhere WebP is accepted.
WebP has quietly become the web's default image format. Developed by Google, it typically produces files 25–35% smaller than JPEG at equivalent visual quality, and it handles transparency like PNG — one format covering the jobs that used to need two.
For anyone running a website, that size difference is free performance: smaller images download faster, pages feel snappier, and mobile visitors on slow connections notice the difference immediately. It's the single easiest image optimization most sites haven't done yet.
A few years ago “but does it work in Safari?” was a real question. Not anymore: every modern browser — Chrome, Firefox, Safari (since version 14), Edge, and all mobile browsers — has displayed WebP natively for years. In 2026, WebP support is effectively universal on the web.
The remaining exceptions are outside the browser: some desktop publishing tools, older email clients, and print workflows still expect JPG or PNG. Rule of thumb: WebP for anything displayed on the web, JPG or PNG for anything headed to print or attached in email to non-technical recipients.
This page opens the compressor with WebP output pre-selected. Your image is decoded and re-encoded through your browser's native canvas encoder, producing a genuine .webp file — not a renamed JPG, not a container trick. What you download is the real format.
Transparency survives the trip: PNGs with alpha channels convert to WebP with transparency intact, and at a fraction of the file size. Everything happens locally, so you can convert a whole folder of site assets without uploading anything.
Converted WebP files look identical to their sources at normal viewing sizes — the format's whole point is discarding data your eyes can't see. Photographs convert especially well; flat graphics and screenshots with transparency also shrink dramatically compared to PNG.
One honest note: conversion can't add quality that isn't there. A blurry, over-compressed JPG becomes a smaller blurry WebP — the file gets lighter, but the pixels don't get better. Start from the best-quality source you have.
Format is only half the battle — dimensions are the other half. A 4000-pixel WebP is still heavier than it needs to be for an 800-pixel blog slot. Convert here, then make sure each image is also sized for its actual display slot.
If you're optimizing a whole site rather than converting a few files, our website image guide walks through sensible per-image size targets and how they feed into Google's Core Web Vitals measurements.
Yes. The tool re-encodes your image through the browser's canvas encoder and downloads it with a .webp extension — a genuine WebP file that any modern browser, CMS, or image tool will recognize.
Not visibly. WebP is engineered to match JPEG's visual quality at 25–35% smaller sizes. At normal viewing distances a converted photo is indistinguishable from its source.
Yes. Unlike JPG, WebP supports an alpha channel, so transparent PNGs convert to transparent WebPs — usually at a fraction of the original file size.
This page handles still images — JPG and PNG in, static WebP out. Animated sources need a dedicated animation converter, which this tool isn't.