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Convert JPEG to WebP

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WebP uses more advanced compression than JPEG, producing files 25–34% smaller at equivalent visual quality. Both formats are lossy, so re-encoding applies compression a second time — use a quality setting of 80%+ to keep the added loss imperceptible. WebP encoding runs through the browser's native canvas encoder and is fast. WebP also gains you full alpha-channel transparency support — a capability JPEG lacks. The compression improvement means real bandwidth and storage savings at scale: a JPEG photo library re-encoded to WebP shrinks measurably without visible quality degradation.

When you’d want this conversion

  • Improving web performance — smaller files mean faster page loads and better Core Web Vitals scores
  • Reducing image storage and bandwidth costs on a CDN or web server
  • Switching a site's image library from JPEG to a smaller modern format
  • Upgrading existing JPEG assets without going back to a raw source

What to watch for

Both formats are lossy — re-encoding applies compression twice. Start from the highest-quality source you have and keep the quality slider at 80%+ to minimise compounding artifacts.
From.jpg

JPEG

Joint Photographic Experts Group

  • Lossy compression
  • No transparency
  • Best for: photographs, social media images, email attachments
To.webp

WebP

Web Picture format

  • Lossy compression
  • Supports transparency
  • Best for: web images, CMS uploads, app assets

More JPEG Conversions

Convert JPEG to PNG Convert JPEG to AVIF

Convert Other Formats to WebP

Convert PNG to WebP Convert GIF to WebP Convert BMP to WebP Convert AVIF to WebP Convert HEIC to WebP Convert SVG to WebP

Related Tools

Convert WebP to JPEG Compress JPEG Image Converter

Related Guide

PNG vs JPG vs WebP vs AVIF

How to Use

  1. 1

    Drop your JPEG file or click to browse — the output format is already set to WebP.

  2. 2

    Adjust the quality slider. 85–90% is a good starting point; lower values produce smaller files with more visible compression.

  3. 3

    Click "Convert to WebP" — conversion runs entirely in your browser.

  4. 4

    Download the WebP.

Frequently Asked Questions

How much smaller will the WebP be compared to the JPEG?

Typically 25–34% smaller at equivalent visual quality. Exact savings depend on image content; natural scenes compress more than high-frequency graphic detail.

Does re-encoding from JPEG to WebP degrade quality further?

Yes — both formats are lossy, so a second compression pass is applied on top of the existing JPEG encoding. At quality settings of 80%+, the added degradation is minimal and typically imperceptible in photographic content. Avoid low settings to prevent compounding artifacts.

Does WebP work everywhere?

All major browsers — Chrome 23+, Firefox 65+, Edge 18+, and Safari 14+ — support WebP natively, as do most modern image editors and CMS platforms. Very old software or email clients may not support it; PNG or JPEG is the safer choice for those contexts.

See all conversions

Browse every supported format pair — pre-configured and ready to go.

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