BMP to WebP Converter

Add your BMP files — drag in or click to browse.

Set the quality — choose a level; lower means smaller files.

Convert and download — save each WebP, or click Download All as ZIP. ```

Hugely. BMP is uncompressed, so files are enormous, while WebP uses modern compression — converting typically cuts the size by well over 90% with little or no visible difference. It's one of the biggest size wins you can get.

Every modern browser — Chrome, Firefox, Edge, and Safari — supports WebP, so it's safe to use across the web today. Only very old browsers lack support, in which case a JPG or PNG fallback covers them.

WebP offers both. The quality slider controls lossy compression for the smallest files; a high setting looks identical to the source. If you need exact pixels, a high-quality or lossless WebP keeps them while still beating BMP on size.

WebP supports an alpha channel, so transparency is preserved if the source BMP has it. Standard BMP files have no transparency, so the WebP will simply carry the same solid background.

To make a heavy bitmap practical for the web. WebP is tiny by comparison and widely supported, so pages load faster and images upload easily — a far better fit than BMP for anything online.

For web images, a mid-to-high quality gives a big size saving with no visible loss. Lower it for non-critical images, or raise it for detailed graphics. Check the preview before downloading.

No. The converter runs entirely in your browser using the HTML5 Canvas, so your files are processed on your own device and never uploaded. Nothing is stored once you close the tab. That keeps your images private and makes conversion fast, because there's no upload or download to a server.

Yes. Drag in a whole batch and the tool converts them all locally. Download each result from its card, or click "Download All as ZIP" to save the entire set in one folder. There's no cap on the number of files beyond your device's memory.

Yes. It runs in your phone's browser with nothing to install, so you can convert files on Android or iOS and download the result. Small batches convert quickly; very large or high-resolution sets use more memory and are smoother on a computer, but everyday conversions work fine on mobile.

There's no artificial cap or paywall, because nothing is uploaded — the work happens on your device. The practical limit is your device's memory. A large batch of high-resolution images uses more memory and is smoother on a computer, but everyday conversions run quickly even on a phone.

No. There's nothing to download or install and no account to create. The converter runs in any modern web browser, on any operating system, so you don't need a desktop image editor or codec. Just open the page, add your files, and convert.

Yes, it's completely free with no account and no limits, and it adds no watermark — what you download is clean. Because everything runs locally in your browser, there's no paywall and no usage cap.