Want to make your website images lighter, or need to open a downloaded WebP image as JPG? This guide walks you through how to convert images to and from WebP, step by step. With a free browser-based tool, you can convert images without installing any software.
How to Convert JPG & PNG to WebP
Step 1: Open the WebP Conversion Tool
Access sakutto's WebP conversion tool from your browser. No sign-up or app installation required. Works on both desktop and mobile.
Free Tool
WebP Converter
Convert images to WebP or WebP to JPG/PNG. Reduce file size with modern web-optimized format.
Try it now →Step 2: Add the Images You Want to Convert
Drag and drop your image files, or click the "Select Files" button to choose them. Supported formats include JPG (JPEG), PNG, GIF, and BMP. You can add multiple files at once.
Step 3: Set the Quality
Use the quality slider to adjust the output quality.
- 80% quality: Best balance between file size and image quality (recommended)
- 90–100% quality: Prioritizes quality. Ideal for photos and portfolios
- 60–70% quality: Prioritizes size. Ideal for thumbnails and banners
Step 4: Convert and Download
Click "Start Conversion" to process the images in your browser. Once complete, download them individually, or as a ZIP file for multiple images.
How to Convert WebP to JPG or PNG
If a downloaded image has a ".webp" extension and won't open in other apps or services, convert it to JPG or PNG.
- Go to sakutto's WebP conversion tool
- Drag and drop the WebP file
- Select JPG or PNG as the output format
- Click "Start Conversion" and download
Should You Convert to JPG or PNG?
| Comparison | JPG | PNG |
|---|---|---|
| File size | Smaller | Larger |
| Quality | Slight loss (adjustable) | No loss |
| Transparency | Not supported | Supported |
| Best for | Photos, web publishing, email attachments | Logos, screenshots, transparent images |
Benefits of Converting to WebP
1. Significantly Smaller File Sizes
WebP achieves about 25–35% smaller file sizes at the same quality as JPEG. Converting all images on a website to WebP can dramatically improve page load speed.
2. Google-Recommended SEO Best Practice
Google recommends serving images in "next-gen formats (WebP)" through PageSpeed Insights and Core Web Vitals. Converting to WebP is a direct and effective SEO measure.
3. One Format for Transparency and Animation
WebP covers the roles of JPEG (photo compression), PNG (transparency), and GIF (animation) in a single format. This reduces the hassle of managing multiple image formats.
Free Tool
WebP Converter
Convert images to WebP or WebP to JPG/PNG. Reduce file size with modern web-optimized format.
Try it now →Quality Setting Tips
The key to WebP quality settings is choosing the right level for your use case.
| Use case | Recommended quality | Approx. file size |
|---|---|---|
| Blog / website photos | 75–85% | 30–50% of original |
| E-commerce product images | 85–90% | 40–60% of original |
| Portfolio / gallery | 90–100% | 50–70% of original |
| Thumbnails / banners | 60–75% | 20–40% of original |
| Social media images | 80–85% | 30–50% of original |
Things to Watch Out for When Converting to WebP
Some Services Don't Support WebP
Some social media platforms (Twitter, Instagram, etc.) and web services don't accept WebP image uploads. In those cases, convert to JPG or PNG before uploading.
Keep Your Original Images as Backup
WebP conversion typically uses lossy compression. Once converted, you can't get the original quality back. Keep your original JPG/PNG files as a backup.
Avoid Repeated Conversions
Converting back and forth between lossy formats (e.g., JPEG → WebP → JPEG) degrades quality with each conversion. Convert to your final desired format in one step.
Frequently Asked Questions (FAQ)
What is WebP conversion?
WebP conversion is the process of converting images in formats like JPEG or PNG into Google's WebP format. WebP files are about 25–35% smaller than JPEG at the same quality, making them effective for improving website load speed and SEO. The term also covers converting WebP back to JPG or PNG.
Can I convert WebP to JPG or PNG?
Yes. sakutto's WebP conversion tool supports reverse conversion from WebP to JPG and WebP to PNG. This is useful when a downloaded image is in WebP format and won't open in other applications.
Does converting to WebP reduce image quality?
It depends on the quality setting. At around 80% quality, there is virtually no visible loss. The lower the quality, the smaller the file size — but quality decreases accordingly. Adjust based on your use case.
Can I batch convert multiple images to WebP?
Yes. sakutto's WebP conversion tool supports batch conversion of multiple files. After conversion, you can download all files together as a ZIP archive.
Are my image files sent to a server?
No. All processing in sakutto's WebP conversion tool happens entirely in your browser. Your image files are never sent to any server, so you can safely use it with confidential documents or private photos.
Summary
WebP conversion is essential for reducing image sizes on websites and improving SEO. With sakutto's WebP conversion tool, you can easily convert between JPG/PNG and WebP right in your browser. Your files are never sent to a server, so you can use it with complete peace of mind.
Free Tool
WebP Converter
Convert images to WebP or WebP to JPG/PNG. Reduce file size with modern web-optimized format.
Try it now →