JPG to WebP Converter — Smaller Files for Faster Websites

Convert JPG to WebP for 25-35% smaller files — improve your Core Web Vitals and page speed. No server upload.

Drop your JPG image here or click to upload
JPG/JPEG only — output is WebP (25-35% smaller)

How to Use

  1. Upload your JPG image — Select or drag-and-drop a JPG/JPEG image from your device.
  2. Adjust WebP quality — Use the quality slider (60%–100%) to control the size/quality trade-off. The output size updates in real time.
  3. Download WebP — Download the converted WebP file, typically 25–35% smaller than the JPG original.

Why Use This Tool

Google's Lighthouse and PageSpeed Insights flag unoptimised images as a top opportunity for improving page speed. WebP produces files 25-35% smaller than JPG at the same visual quality, directly improving your Largest Contentful Paint (LCP) score — one of the three Core Web Vitals that affect search ranking.

This tool converts JPG to WebP entirely in your browser with a quality slider. Watch the file size drop in real time as you adjust — find the sweet spot between quality and speed. WebP is now supported by all major browsers including Safari, so there's no compatibility risk.

No server uploads, no batch limits, no watermarks. Convert one image at a time with full quality control. Perfect for web developers, designers, and anyone optimising images for performance.

Frequently Asked Questions

Yes — as of 2024, WebP is supported by all major browsers including Chrome, Firefox, Safari, Edge, and Opera. Safari added support in version 14 (2020). The only holdouts are very old browser versions that represent less than 1% of web traffic. WebP is safe to use as a primary image format for websites.
WebP files are typically 25–35% smaller than equivalent JPG files at the same visual quality. A 500KB JPG might become a 325–375KB WebP with no visible difference. This reduction directly improves page load speed, Largest Contentful Paint (LCP), and Core Web Vitals scores.
WebP reduces image file sizes by 25–35% compared to JPG, which directly improves your Core Web Vitals scores — especially Largest Contentful Paint (LCP). Google uses Core Web Vitals as a ranking signal, so faster-loading images from WebP can improve your search position. Most CDNs and CMS platforms now support WebP natively.
No — all conversion happens entirely in your browser using the Canvas API. Your images never leave your device. This makes it safe for converting client images, proprietary content, or any sensitive photographs.
For photographs on websites, 75–80% WebP quality gives the best balance of file size and visual fidelity — compression artifacts are invisible at normal viewing sizes. For hero images and portfolios, use 85–90%. For thumbnails and background images, 65–75% is sufficient.

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