WebP files are 25-35% smaller than JPG at the same visual quality — and every modern browser supports them. If you run a website, blog, or online store, converting your JPG images to WebP is one of the easiest ways to improve page speed, Core Web Vitals scores, and SEO rankings.
| File type | JPG | WebP | Note |
|---|---|---|---|
| Blog hero image (1920×1080) | 850 KB | 580 KB | 32% smaller |
| Product photo (2000×2000) | 1.4 MB | 920 KB | 34% smaller |
| Thumbnail (400×300) | 95 KB | 62 KB | 35% smaller |
| Portfolio image (3000×2000) | 2.8 MB | 1.9 MB | 32% smaller |
Switching all JPG images on your site to WebP reduces total page weight by 25-35%. This directly improves Largest Contentful Paint (LCP) and overall Core Web Vitals scores.
If you serve thousands of images monthly, the file size reduction from JPG to WebP translates directly to lower bandwidth bills on Cloudflare, Vercel, or AWS.
Online stores with hundreds of product photos benefit massively from WebP. Faster product page loads mean better conversion rates and lower bounce rates.
Content-heavy sites with many inline images see significant performance gains from WebP conversion. Faster pages rank better in Google search results.
Download and open Picmal on your Mac.
Drag and drop your JPG files or entire folders into Picmal.
Choose WebP as the output format and click Convert.
Joint Photographic Experts Group
The most widely supported image format, standardized as ITU-T T.81 in 1992. JPG (also called JPEG) is compatible with virtually every device and application, and remains the universal default for photographic content.
Best for
Sharing photos, web uploads, and email attachments
WebP Image Format
Developed by Google and based on the VP8 video codec, WebP delivers 25–35% smaller files than JPEG at equivalent SSIM quality according to Google's comparative study. Supported by all major browsers since 2020.
Best for
Web images, blogs, and online stores
Something not covered here? Write to support@picmal.app
Open Picmal, drag your JPG files or folders into the window, select WebP as the output format, adjust quality if needed, and click Convert. Picmal processes everything locally on your Mac.
WebP files are typically 25-35% smaller than JPG at the same visual quality. A 1MB JPG photo often becomes 650-750KB as WebP. For website images, this adds up to significant bandwidth savings.
As of 2026, WebP is supported by 97%+ of browsers worldwide including Chrome, Safari, Firefox, and Edge. Only very old browser versions lack support.
At the same quality setting, WebP and JPG look virtually identical — but the WebP file is 25-35% smaller. Picmal lets you set quality from 0-100 and preview before converting.
Yes. Drag your entire images directory into Picmal and convert all JPG files to WebP at once. Process thousands of images in minutes on Apple Silicon.
Yes — keep originals as backup. Some older tools and systems still don't support WebP, and you may need JPG versions for email newsletters or print materials.
Picmal is a one-time purchase of $39 — no subscription. Download to explore the interface. 14-day money-back guarantee included.
If you don't need to change formats, Picmal can also compress your files to reduce size:
One-time purchase · No subscription · 14-day money-back guarantee