WebP Converter — Convert JPG, PNG, GIF & HEIC to WebP
Convert JPG, PNG, GIF, HEIC, AVIF, and TIFF images to WebP,
or convert WebP files back to PNG, JPG, HEIC, AVIF, and other popular formats. Everything works directly in your browser with no installation required.
Upload and convert multiple images at once, then download all converted files immediately after processing is complete.
Choose image quality settings from automatic optimization to manual control (75–95%). You can also resize images by pixel dimensions while keeping the original aspect ratio intact.
Want even smaller file sizes after conversion? Try the Image Compressor tool to optimize images further.
How WebP Conversion Can Improve Page Speed & SEO
Core Web Vitals’ LCP measures how quickly the largest visible element appears on a page.
Converting images to WebP can significantly reduce file sizes compared to JPG and PNG, helping improve page speed and user experience.
On image-heavy websites, switching to WebP alone can noticeably improve loading performance.
WebP is widely used by ecommerce stores, blogs, news sites, and content-rich platforms.
What Happens When You Convert Animated GIFs to WebP
WebP supports animated images just like GIF and also preserves transparency (alpha channel). In many cases, animated WebP files are much smaller than GIFs while maintaining similar visual quality.
If you need to convert a WebP file back to GIF, simply choose the “Convert WebP to GIF” option.
Keep in mind that GIF files are limited to 256 colors, so converting from WebP to GIF may result in reduced color accuracy or visible quality loss.
How Online WebP Conversion Works Without Installing Software
Some desktop WebP converter applications require additional setup depending on the operating system or software version.
Vivoldi handles image conversion directly on the server, so there’s nothing to install or configure.
It works consistently across Windows, macOS, Linux, and other platforms. Once the conversion is finished, your files are immediately ready to download.
How to Convert WebP Files When They Won’t Open Properly
WebP is supported by most modern browsers, but older image editors or certain printing environments may not fully support the format.
By selecting “Convert WebP to Another Format”, you can export WebP images as PNG, JPG, HEIC, AVIF, TIFF, BMP, and other formats.
Simply choose the format that best matches your needs. If additional editing is required, you can continue working with the file in the Image Editor.
Can You Convert iPhone Photos (HEIC) and AVIF Files?
Photos taken with an iPhone are usually stored in the HEIC format by default.
Depending on the website, app, or browser environment, HEIC files may not open properly when uploaded or shared directly.
Vivoldi’s WebP Converter supports modern image formats including HEIC and AVIF without requiring any extra software or plugins.
You can also convert them into widely supported formats such as PNG or JPG for easier sharing and compatibility.
Frequently Asked Questions
Free users can upload and convert 1 file at a time, with a maximum file size of 15MB per file.
To upload multiple files simultaneously or convert larger images, you’ll need to upgrade your plan.
The ideal quality setting depends on how you plan to use the image.
- Standard web images: Auto mode or 80–85% usually provides the best balance between image quality and file size.
- When preserving original quality is important: Choose “Keep Original Quality” or set the quality to 95%.
- When minimizing file size is the priority: Using 75% or lower can significantly reduce file size, although some visible quality loss may occur.
Yes. WebP supports alpha transparency, so transparent areas are preserved when converting images such as PNG files.
However, JPG does not support transparency. If you convert a transparent image to JPG, the transparent background may be replaced with white or black.
Vivoldi processes image conversions directly on the server. Many free converters use a client-side approach that relies on your browser and device performance instead.
While client-side tools are fast and lightweight, they often provide less precise control over compression quality, metadata, and color profiles.
Because Vivoldi uses dedicated server resources for high-quality image processing, the free plan includes a daily conversion limit.
WebP is an image format developed by Google. It was designed to deliver image quality comparable to JPG and PNG while reducing file sizes by up to 80%.
In addition to standard images, WebP also supports animations and transparent backgrounds (alpha transparency).
It is now supported by most modern browsers, including Chrome, Safari, Edge, and Firefox.
WebP is a highly compressed image format, so using a very low quality setting can cause text edges, icons, and fine details to appear blurry or distorted.
This is especially noticeable with screenshots, UI designs, and text-heavy images when compressed below 75%.
For most web images, a quality setting between 80–90% is commonly recommended to balance image quality and file size.
If preserving the original image quality is important, it’s recommended to use “Keep Original Quality” or select a higher quality setting during conversion.