Convert JPG to WebP Online for Free

Free

Convert JPEG to WebP and reduce file size by up to 35% without visible quality loss. Browser-based, no upload.

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What's next

Compress WebP further
Reduce file size more if needed
Convert PNG to WebP
Same conversion for PNG, transparency preserved
Resize first
Resize to display dimensions before converting

Settings guide

Quality equivalences for JPG to WebP:

  • ·WebP 80% ≈ JPEG 92% (visually equivalent, 25% smaller)
  • ·WebP 75% ≈ JPEG 85% (visually equivalent, 30% smaller)
  • ·WebP 70% ≈ JPEG 80% (visually equivalent, 35% smaller)

Recommended settings by use case:

  • ·Hero images and featured photos: 80%
  • ·General web images: 75–80%
  • ·Thumbnails and gallery previews: 65–75%

Serving WebP with a JPEG fallback: Use the HTML picture element — list the WebP source first, then JPEG as fallback. Browsers that support WebP load it; others automatically fall back to JPEG.

Format comparison

WebP vs JPEG (JPG→WebP direction): You gain 25–35% file size reduction and lose broad software compatibility. This trade-off makes sense when the image is for web delivery and you control the environment.

WebP vs PNG: WebP supports transparency, something JPEG does not. Converting JPG→WebP does not add transparency, but if you later need transparency, you can add it in the WebP format.

WebP vs AVIF: AVIF is 40–50% smaller than WebP at equivalent quality, but browser and tooling support is still maturing as of 2025. WebP is the practical standard for web-optimised images right now.

How it works

1

Upload

Drop your JPG or JPEG file into the converter.

2

Set quality

80% is recommended — roughly equivalent to JPEG 92% quality.

3

Convert

The converter produces a WebP file 25–35% smaller than the original JPEG.

4

Download

Save the WebP file to your device.

About this format

Converting JPG to WebP is one of the highest-leverage optimisations you can make for web performance. At the same visual quality, WebP produces files 25–35% smaller than JPEG. A 500KB hero image becomes 325–375KB as WebP with no visible difference at normal viewing distances — which directly improves page load speed, Core Web Vitals scores, and therefore search rankings.

This converter is specifically for the JPG→WebP direction: you're trading JPEG's near-universal compatibility for significant size savings in contexts where you control the delivery environment (your website, your app, a CDN). If you need to email the image or open it in older software, keep the JPEG. If it's going to the web, WebP is the better choice.

Upload your JPG, set quality, and download your WebP. Runs entirely in your browser.

Frequently asked questions

How much smaller is WebP compared to the original JPG?+
Typically 25–35% smaller at equivalent visual quality. A 500KB JPEG becomes roughly 325–375KB as WebP with no visible quality difference at normal viewing distances.
Do all browsers support WebP?+
Yes, as of 2025. Chrome, Firefox, Safari, Edge all support WebP natively. IE11 does not, but IE11 has less than 0.5% global usage. For near-universal support, use a picture element with a JPEG fallback.
Will converting JPG to WebP lose quality?+
Minimal quality loss at 80%+ quality setting — equivalent to JPEG at 90%+. At equal visual quality, WebP simply uses less data. You can also use lossless WebP mode for zero quality loss.
How do I serve WebP on my website with a JPEG fallback?+
Use the HTML picture element: list the WebP source first, then JPEG as fallback. Browsers that support WebP load it; others fall back to JPEG automatically.
Does WebP support transparency that JPG doesn't?+
Yes. WebP supports alpha channel transparency. JPG has no transparency support. Converting JPG to WebP does not create transparency, but WebP can carry it if you later add it in an editor.
Are my files uploaded to a server?+
No. Conversion runs in your browser.

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