JPEG to WebP Converter

Converted locally in your browser — files never leave your device.

Drop JPEG files here or click to select

JPG, PNG, WebP, GIF, BMP, AVIF, TIFF — multiple files supported

How to convert JPEG to WebP

  1. Drop your JPEG files onto the converter above — or click to browse.
  2. Click Convert on a single file, or Convert all to process everything at once.
  3. Download individually or click Download all for a ZIP archive.
  4. Tip: JPEG and JPG are the same format — use whichever file extension your images have.

JPEG to WebP — better compression, same quality

JPEG (also .jpg) is the most widely used image format for photographs, but it was designed in 1992. WebP, released by Google in 2010, uses a fundamentally more efficient compression algorithm that delivers 25–34% smaller files at the same perceptible quality.

For web developers managing large image libraries, converting JPEG to WebP is among the highest-ROI performance improvements available. It requires no design changes — just swap the format and serve smaller files to the same audience.

How to serve WebP with JPEG fallback

  • Keep the JPEG as a fallback for browsers that don't support WebP (very rare now)
  • Use HTML <picture> element: WebP as primary, JPEG as fallback
  • Next.js, Nuxt, Gatsby, and most modern frameworks serve WebP automatically
  • Cloudflare Polish and image CDNs can convert JPEG to WebP on-the-fly at the edge

Frequently Asked Questions

Is JPEG the same as JPG?
Yes. JPEG is the full format name (Joint Photographic Experts Group); JPG is the 3-character extension used on Windows. Both refer to the identical format and compress images using the same algorithm. They are processed identically by every tool.
How much smaller will WebP be than JPEG?
Typically 25–34% smaller at equivalent visual quality. A 1 MB JPEG typically becomes a 660–750 KB WebP. For a website with 1000 product images, this can save hundreds of megabytes of total image weight.
Does WebP support transparency unlike JPEG?
Yes. WebP supports full alpha-channel transparency while JPEG has none. If you plan to later add a transparent background to the converted image, WebP supports it — unlike JPEG which would require converting to PNG.
How do I add WebP images to a website?
Use the <picture> element for safe delivery: <picture><source type="image/webp" srcset="photo.webp"><img src="photo.jpg" alt="..."></picture>. This serves WebP to supporting browsers (97%+) and falls back to JPEG for the rest.
Can I convert multiple files at once?
Yes. Drop as many files as you need in one go and click "Convert all" to process everything at once. When done, click "Download all" to get a single ZIP archive containing all converted files.
Are my files uploaded to a server?
No. All conversion happens directly in your browser using the Canvas API. Your files never leave your device — no uploads, no server processing, 100% private. This also means the tool works without an internet connection once the page has loaded.