JPG → WEBP

JPG to WEBP Converter

Convert JPEG files (released 1992, Lossy) to WebP (Lossless + Lossy (your pick), typically 25–35% smaller than equivalent JPEG/PNG). Runs in your browser — no upload, no signup.

4.8/5

Based on 12,431+ conversions delivered

From
To

Converting JPG to WebP is a quick win when you're optimising for the web: WebP keeps the same visual quality as JPG at a noticeably smaller size, which means faster pages and lower bandwidth. In our sample set, JPG files came out about 53% smaller as WEBP. JPG has no transparency to lose, so the conversion is clean — you're simply trading an older codec for a more efficient one that every modern browser supports. Keep the JPG only if you must serve very old clients without a <picture> fallback. Drop your files below; everything converts in your browser with no upload.

For developers

Looking to programmatically convert JPG to WEBP?

Same engine, available as a JSON API. Drop a file or URL via REST and get the converted output back — no browser, no UI, no rate limits on paid tiers.

  • Sub-second response on common pairs

  • Webhook delivery for batch jobs

  • 100+ format pairs supported

Get free API access
Side-by-side

JPG vs WEBP — side-by-side

The numbers and capabilities at a glance, so you know what you're trading.

JPEG

Year released
1992
Compression
Lossy
Transparency
No
Animation
No
Browser support
Universal — older than the web itself
Best for
Photographs, hero images, anything where small file matters more than transparency

WebP

Year released
2010 (Google)
Compression
Lossless + Lossy (your pick)
Transparency
Yes (alpha in both modes)
Animation
Yes
Browser support
All modern browsers (95%+ since 2020)
Best for
Web production where every kilobyte counts
Convert any image to WEBP
Sample results

Real JPG → WEBP file sizes

We ran a fixed set of sample images through this exact converter so you can see the typical size impact before converting your own files.

Sample imageJPG sizeWEBP sizeChange
Photo79.2 KB39.9 KB-50% smaller
Screenshot / UI6.0 KB1.2 KB-79% smaller
Logo / transparency9.1 KB3.5 KB-61% smaller

Measured on a 256×256 sample set with this converter on 2026-05-28. Real-world files vary with resolution, colour and content.

Best practice

Best practices for JPG → WEBP

Concrete settings to pick before you convert JPEG to WebP.

  • Always preview the WebP output before bulk-downloading — colour shifts, transparency surprises, and quality artifacts show up in the preview before they ship.
  • Strip EXIF metadata if file size or privacy matters — camera GPS coordinates, timestamps, and serial numbers travel inside the image bytes by default.
  • For photographic content, target a WebP quality between 80 and 85 — that's the sweet spot where most encoders stop showing visible artifacts and the file size curve flattens.
  • Verify the alpha channel rendered as expected — premultiplied vs straight alpha and edge halos around antialiased pixels are the most common surprises when going to WebP.
  • When converting to WebP (animated), confirm the frame timing matches your source — some encoders default to a fixed 100ms delay per frame instead of preserving the original timing.
  • For web WebP delivery, encode in sRGB — wider colour spaces (Display P3, ProPhoto) render unpredictably across browsers and email clients.
When to skip

When NOT to convert JPG → WEBP

Honest cases where this conversion is the wrong call — pick a different format or keep your JPEG source.

  • Skip if your audience uses legacy browsers

    WebP doesn't render on every old browser, email client, or built-in OS viewer. If your traffic includes IE11, legacy Outlook, or older Android WebViews, stay on JPEG (or a universal format like JPEG/PNG) — or ship WebP alongside a fallback via the HTML <picture> element.

  • Skip if the file is bound for print

    WebP is a delivery-grade web format. Print pipelines (offset, large-format, packaging) expect TIFF, PDF, or high-bit-depth PNG with embedded ICC profiles and a CMYK option. Converting JPEG to WebP for a print job will likely fail prepress checks — keep the original or convert to a print-friendly format instead.

Deep dive

The importance of a good image conversion

Why getting JPG → WEBP right matters more than you think.

FAQ

Frequently asked

The basics everyone asks before dropping a file.

Convert JPG to other formats

Convert other formats to WEBP