Easy Converter

JPG to WEBP Converter

Convert JPG to WEBP online to make your images dramatically lighter without losing visible quality. WEBP routinely produces files 25–35% smaller than equivalent JPGs at the same perceptual quality, which translates into faster page loads, lower bandwidth bills and a much better Core Web Vitals score. Everything runs in your browser — no uploads, no waiting in a queue.

How to use

  1. 1

    Add JPG images

    Drop your JPG files into the upload area or pick them from your computer.

  2. 2

    Pick WEBP quality

    Choose lossy quality between 60 and 100, or switch to lossless WEBP for non-photographic assets.

  3. 3

    Download WEBP files

    Save the results one by one or as a single ZIP archive.

Technical details

WEBP, designed by Google, combines a VP8/VP9-derived intra-frame codec with optional lossless mode and an alpha channel. The lossy WEBP profile uses smarter block prediction and adaptive quantisation than JPEG, which is why it consistently beats JPG in both file size and perceptual quality benchmarks (SSIM, Butteraugli, VMAF).

The converter decodes each JPG with the browser image decoder, paints the bitmap onto a canvas, and exports it with `canvas.toBlob("image/webp", quality)`. The quality value behaves like the JPEG one: 75–85 is the recommended range for photos. Lossless WEBP is also available for assets that contain text, logos or pixel art.

WEBP is supported in Chrome, Edge, Firefox and Safari 16+. To reach the small number of legacy clients still in use, serve a JPG fallback inside a `<picture>` element: `<picture><source type="image/webp" srcset="hero.webp"><img src="hero.jpg" alt=""></picture>`.

WEBP also outperforms JPG for graphics with sharp edges thanks to its 4×4 intra-block prediction, which means a single WEBP can replace both your photo JPGs and your transparent PNG icons in many cases.

Frequently asked questions

How much smaller will my files be?
Typically 25–35% smaller than the source JPG at the same perceptual quality. Lossless WEBP is often 25% smaller than PNG.
Will WEBP work on iPhone?
Yes — Safari has supported WEBP since version 16 (iOS 16), released in late 2022.
Is lossless WEBP worth it?
For text, logos and pixel art, yes. For photographs, lossy WEBP gives much better compression at indistinguishable quality.
Do I need a fallback?
For 99% of traffic, no. If you must support very old browsers, serve a JPG fallback inside a `<picture>` element.
Will the conversion change my image dimensions?
No. The pixel grid is identical to the source JPG.
Reviewed by:Easy Converter Engineering Team

This tool was tested and calibrated by our engineering team. All processing happens locally in your browser — your files and data never leave your device.