WebP-related software is released under a BSD license. As a derivative of the VP8 video format, it is a sister project to the WebM multimedia container format. WebP is an image format employing both lossy and lossless compression. MNG is an extension to PNG that does it was designed by members of the PNG Group. PNG itself does not support animation at all. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet. Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression. Image format, Lossless/lossy compression algorithm Click icon to show file QR code or save file to online storage services such as Google Drive or Dropbox. The output files will be listed in the "Conversion Results" section. It will automatically retry conversion on another server if one fails, please be patient while converting. Click the "Convert Now!" button to start batch conversion. The target image format can be JPG, PNG, TIFF, GIF, HEIC, BMP, PS, PSD, WEBP, TGA, DDS, EXR, J2K, PNM, SVG, etc.ģ. If this value is blank, the converter will use the estimated quality of your input image if it can be determined, otherwise 92. The value ranges from 1 (lowest image quality and highest compression) to 100 (best quality but least effective compression). The image quality option only works on a few image formats such as JPG, WEBP or AVIF. You can use the original image size or select the "Change width and height" option and enter a custom image size. Set target image format, image quality and image size. You can use file analyzer to get source image's detailed information such as image size, resolution, quality and transparent color.Ģ. Click the "Choose Files" button to select multiple files on your computer or click the dropdown button to choose an online file from URL, Google Drive or Dropbox. Rewrite rule for NginxĪnalogously to the Apache web server, there is a solution for Nginx: # http config block htaccess needs to be positioned relatively high up. When a JPEG or PNG image is displayed in the browser, it is exchanged for a WebP file by the server and assigned the MIME type image/webp. Header append Vary Accept env=REDIRECT_accept The distribution of the correct image is ensured by the rewrite rule in the. In plain terms, the embedding of pictures in the HTML source code does not change in any way and is not affected (e.g. Rewrite rule for ApacheĪ forwarding rule on the server level takes care of distributing the requests for the correct file formats, independently of the browser. If you're using a CDN you must ensure the CDN supports caching based on the Accept request header. However, in the event that you need to deliver WebP images and aren't using WordPress, then you can experiment with the following rules. For WordPress users, we recommend using the Cache Enabler plugin instead as outlined further below. Rewrite rules allow you to deliver WebP images by changing the MIME type of an image. Below is an example we grabbed from YouTube's homepage. YouTube uses WebP format in certain large thumbnails. At the time of writing this, about 95% of the images on their homepage were in the WebP format. Here is an example we grabbed from eBay's homepage. Several big names like Google, Facebook, and eBay are campaigning for the use of WebP and are even actively using it. WebP for Chrome & Opera - JPEG for all other browsers. Looking at the statistics of your own websites lets you know whether it will be worth it for your project to include images in two formats. At the moment there are two browsers that officially support the format, but soon there will be three with WebP support - if Firefox sticks to their plan. Nevertheless, it is worth it to deliver images in WebP format to the browsers named above. Internet Explorer and Safari are left out completely. Firefox has announced support for WebP images in the future and it is still being discussed in this thread. According to, at this time, Opera and Chrome support the modern image format WebP. Browser support is the biggest current disadvantage of the WebP technology. Sounds promising: higher quality than JPEGs, with much smaller files. WebP: reductions in file size of up to 80% are commonly achievable. The WebP format is a sophisticated alternative method for convenient image compression that is now entering the market. JPEG is considered outdated and too inefficient. Web users well-versed in technology have surely heard of WebP - an image format developed by Google to ensure superior compression of photos.
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