Image to WebP Converter: Convert JPG and PNG to WebP Free
Kamran Liaquat Ali- posted on
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Use this free image to WebP converter to turn JPG, PNG and GIF files into smaller WebP images in seconds. Drop in up to 30 images, choose the quality and an optional maximum width, and download each file or all of them as a ZIP. Everything runs in your browser, so your images are never uploaded to a server.
Image to WebP Converter
Convert JPG, PNG and GIF images to WebP, resize and compress them in your browser. Your images are never uploaded.
75 to 85 is a good balance for photos. Use 90+ for screenshots with text.
Larger images are scaled down; smaller ones keep their size.
| Preview | File | Original | WebP | Saved | Size (px) |
|---|
Privacy: conversion runs entirely in your browser using the canvas API. No image or data is sent to any server. Animated GIFs are converted as a still image (first frame), and photo metadata such as EXIF is removed.
Want the background first? Read our step-by-step guide How to Convert Images to WebP, which explains when WebP helps, the best quality settings and how to use WebP on WordPress safely.
How to Use the Image to WebP Converter
- Add your images. Drag them onto the box or click to choose. JPG, PNG, GIF, BMP and WebP files up to 25 MB each are accepted.
- Set the quality. 80 is a good default for photos. Move it higher for screenshots, diagrams or images with small text.
- Set a maximum width (optional). For blog content, 1200 to 1600 pixels is usually enough. Smaller images keep their original size.
- Keep SEO-friendly names on. “My Photo 01.JPG” becomes “my-photo-01.webp”, which is cleaner for URLs and image search.
- Click Convert to WebP. The table shows the original size, the new size and how much you saved for each image.
- Download. Save files one by one, or click Download all (ZIP).
Reading the Results
| Column | What it means |
|---|---|
| Original | The size of the file you added |
| WebP | The size of the converted file |
| Saved | How much smaller the WebP is. Green means smaller; orange means the WebP came out larger, so keep the original |
| Size (px) | The final dimensions, showing any resizing, for example 2400×1600 → 1200×800 |
A WebP can occasionally be larger than the original, usually for tiny PNG icons or images that were already heavily optimised. The tool flags these so you only replace files that actually get smaller.
Recommended Settings
| Image type | Quality | Max width |
|---|---|---|
| Blog photos and featured images | 75 to 85 | 1200 to 1600 px |
| Screenshots and images with text | 90 to 95 | Display width |
| Logos and graphics with transparency | 85 to 95 | Display width |
| Thumbnails | 70 to 80 | 300 to 600 px |
Why Convert Images to WebP?
Images are often the heaviest part of a web page. According to Google’s WebP documentation, lossy WebP files are 25 to 34% smaller than comparable JPEGs, and lossless WebP files are about 26% smaller than PNGs. WebP also supports transparency, so it can replace many PNG graphics.
- Faster page loads, especially on mobile data.
- Better Core Web Vitals, particularly Largest Contentful Paint when the main image is lighter.
- Lower bandwidth and storage use on your hosting.
- Fewer “serve images in next-gen formats” warnings in PageSpeed Insights.
Faster pages support the technical side of search engine optimization, although image format alone will not make a page rank.
JPG vs PNG vs WebP
| JPG | PNG | WebP | |
|---|---|---|---|
| Best for | Photos | Graphics, transparency | Both photos and graphics |
| Transparency | No | Yes | Yes |
| Typical file size | Medium | Large | Smallest of the three |
| Browser support | Universal | Universal | All modern browsers |
Using WebP on WordPress
WordPress has supported WebP uploads since version 5.8, as long as your hosting’s image library supports the format. After converting:
- Upload the WebP files to the Media Library and replace the old images in your posts.
- Write a short, descriptive alt text for each image; the bulk image alt text checker finds any you missed.
- Scan your pages with the bulk image size and WebP checker to find any remaining heavy JPG or PNG files.
- Keep the original files in a backup folder in case you need to edit them later.
Our full guide, how to convert images to WebP, covers plugins, server conversion and how to avoid broken image links.
Privacy and Limitations
- Private by design: conversion uses your browser’s canvas API. No image is uploaded.
- Browser support for creating WebP: Chrome, Edge, Firefox and Opera can create WebP files. Some versions of Safari can display WebP but cannot create it; the tool tells you if your browser cannot convert.
- Animated GIFs: only the first frame is converted.
- Metadata: EXIF data such as camera details and location is removed, which is usually good for privacy and size.
- Limits: up to 30 images at a time, 25 MB each.
Frequently Asked Questions
Is this image to WebP converter free?
Yes. It is completely free, needs no sign-up, and adds no watermark.
Are my images uploaded anywhere?
No. The conversion happens inside your browser, and the files never leave your device.
Can I convert PNG with a transparent background?
Yes. Transparency is kept in the WebP file.
What quality should I choose?
Start at 80 for photos. If you see blurry edges or artefacts, increase it. For screenshots with text, use 90 or higher.
Will WebP images work in all browsers?
WebP is supported by all modern browsers, including Chrome, Edge, Firefox, Opera and Safari, which covers about 97% of users worldwide according to Can I use.
Can I convert WebP back to JPG?
This tool converts to WebP only. Keep your original files if you may need JPG or PNG versions later.
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