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Image to WebP Converter: JPG, PNG, BMP, GIF to WebP

Convert JPG, PNG, BMP, or GIF to WebP in your browser. Lossy WebP for smaller, faster-loading pages. No uploads, fully private, works offline.

Browser Native
Privacy First
Free Tool

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How It Works

WebP earns its place by shipping the same image in fewer bytes than JPG or PNG, which is why Google built it and why it's now the workhorse format for fast pages. This tool takes the formats already sitting in your folders (JPG, PNG, BMP, GIF) and re-encodes them as lossy WebP, the format every current browser decodes and paints natively. All of it runs on your machine. Your file is decoded into raw pixels, drawn onto a canvas, and exported through the browser's built-in `image/webp` encoder. Nothing is uploaded, so a 4000px BMP and a quick screenshot follow the same path: read, encode, hand back. PNG transparency carries into the WebP alpha channel, so logos and cutouts keep their see-through background. Two limits worth knowing before you start. This is a lossy re-encode, not a lossless repack, so it targets smaller web files rather than archival, pixel-for-pixel copies. And because a canvas only holds one frame, an animated GIF comes out as a still WebP of its first frame, not an animation.

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MoreCANVAS

canvas → base64

Convert toWEBP

jpeg → webppng → webpsvg → webp
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Key Features

  • No file uploads required - works offline
  • 100% privacy focused - client-side processing
  • Browser powered - no software installation
  • Fast processing - WebAssembly technology
  • Free forever - no premium accounts

Supported File Formats

.jpg .jpeg .png .bmp .gif

Output Format: WebP

Technical Specifications

input Format JPG/JPEG, PNG, BMP, GIF (first frame)
output Format WebP (lossy)
compression Type Lossy WebP re-encode via the browser's native canvas image/webp encoder
quality Retention Lossy: visually close to the source at smaller file sizes; not a pixel-for-pixel copy
color Space Support sRGB; PNG alpha transparency preserved in the WebP alpha channel
max Resolution Limited only by your device's memory
processing Time Instant, runs in your browser

Key Benefits

  • Cuts image file sizes versus JPG and PNG, lowering page weight and bandwidth
  • One tool for JPG, PNG, BMP, and GIF inputs instead of four separate converters
  • Keeps PNG transparency intact in the WebP alpha channel
  • Runs fully in your browser, so no files are uploaded and nothing is stored
  • Works offline once the page has loaded
  • Output decodes in every current major browser, ready for production use

Common Use Cases

  • Shrinking JPG and PNG assets to improve load times and Core Web Vitals
  • Converting BMP exports from older or scientific software into a web-friendly format
  • Turning a static GIF into a lighter still WebP
  • Preparing product or hero images for a faster store or landing page
  • Replacing transparent PNG logos and icons with smaller WebP equivalents
  • Modernizing an old image folder before publishing it online
  • Reducing image payload in apps and emails where bandwidth matters

Pro Tips

  • Keep your original JPG, PNG, or BMP if you might re-edit later, since WebP here is a lossy re-encode.
  • Animated GIFs export only their first frame; use this for static GIFs.
  • Serve WebP inside a <picture> element with a JPG or PNG fallback for old browsers.
  • Convert one representative image first to confirm the size-versus-quality tradeoff fits your needs.
  • For logos and icons, start from the PNG, not a JPG, so transparency is preserved.
  • Don't stack repeated lossy conversions; convert once from the best source you have.

Frequently Asked Questions

JPG/JPEG, PNG, BMP, and GIF. Each is decoded by the browser and re-encoded as WebP. PNG keeps its transparency in the WebP alpha channel. GIF is treated as a single still frame, so use this for static GIFs rather than animations.
Lossy. The image runs through the browser's WebP encoder, which drops some detail to shrink the file. For photos and most web graphics the difference is hard to spot. If you specifically need an exact, lossless copy of a PNG, this tool is not built for that case.
A JPG is already lossy, and re-encoding to WebP adds a second lossy pass, so technically some quality is shed. In practice WebP is efficient enough that you usually get a clearly smaller file at a quality most people can't tell from the original. Keep your source JPG if you might re-edit it later.
No. The converter draws the image to a canvas, which captures only one frame, so an animated GIF becomes a still WebP of its first frame. For static GIFs that's exactly what you want. WebP supports animation as a format, but this single-frame canvas path does not produce it.
It depends on the source format and the image content, but WebP is consistently more compact than JPG and PNG at comparable quality, which is the whole reason it cuts page weight. Flat graphics and screenshots shrink more than busy, detailed photos. Convert one representative file to see the real reduction for your images before doing the rest.
No. Every step runs in your browser using the native canvas WebP encoder. The image never leaves your device, there's no account, and nothing is stored. You can disconnect from the network after the page loads and conversion still works.
All current major browsers (Chrome, Firefox, Safari, Edge) render WebP, which is why it's safe to serve in production. Most modern image viewers and editors open it too. For very old browsers or legacy software that chokes on it, keep a JPG or PNG fallback alongside the WebP.
Drop the .webp file in like any other image. For the widest coverage, reference it inside a <picture> element with a JPG or PNG <source> fallback, so newer browsers load the smaller WebP and older ones still get an image.