Merge WebP to PNG

What Is This Tool?

Merge WebP to PNG lets you combine two or more WebP images into a single PNG file, joined either side by side or stacked vertically. It’s useful for creating comparison images, before-and-after strips, simple sprite sheets, or a single shareable image out of several screenshots. Everything runs inside your browser using the HTML5 Canvas API, so no image data is ever transmitted to a remote server.

Because PNG is a lossless format, the merged file preserves every pixel exactly as decoded from your original WebP images, including full alpha transparency in the areas where images don’t fully cover the canvas.

WebP has become a common format across modern websites because it produces smaller files than JPEG or PNG at similar visual quality, which helps pages load faster. That efficiency is great for the web, but it can be a problem the moment you want to combine several WebP images into one graphic. Most photo editors, presentation tools, and messaging apps expect a single flat image in a widely supported format, not a folder of separate WebP files. This tool solves that gap directly in your browser: it reads each WebP image, lays them out in the order and direction you choose, and flattens the result into one PNG you can download and use anywhere.

Unlike desktop software, there is nothing to install and no learning curve. You do not need to understand canvas sizes, layers, or export settings. Upload your images, pick a direction, and the tool works out the dimensions of the combined canvas automatically based on the size of each image you add.

Common Use Cases for Merging WebP Images

People reach for a WebP merge tool for many different reasons, and the flexible horizontal and vertical layout options make the tool useful across a range of everyday tasks.

WebP and PNG: Understanding the Two Formats

WebP is a compressed image format built for the web. It supports both lossy and lossless compression, along with transparency, which is why so many websites use it to keep pages fast. The tradeoff is compatibility: some older browsers, image viewers, office applications, and print workflows still do not fully support WebP files.

PNG, by contrast, is one of the most universally supported image formats available. It is always lossless, meaning no visual detail is discarded during compression, and it also supports full transparency through an alpha channel. When you merge your WebP images with this tool, the output is always saved as PNG so the combined image opens correctly in virtually any editor, document, or platform you send it to, without asking the recipient to have any special software.

Tips for Getting the Best Merged Result

• Use images with similar dimensions when merging horizontally so the row lines up cleanly along the top edge.
• For vertical stacks, similar widths keep the sides aligned without extra background showing on either edge.
• Choose “Fill white” if your images have transparent backgrounds and you plan to place the merged PNG on a light page or document.
• Keep “Keep transparent” selected if you want to layer the merged PNG over other content later, such as in a design tool.
• Use the reorder buttons to double check the sequence before merging, since the order in the list is the order in the final image.

How to Merge WebP to PNG

1. Click the upload area above or drag and drop two or more .webp files directly onto it. You can add more files at any point before merging.
2. Reorder the files if needed using the up and down buttons, since the order in the list determines the order in the final image.
3. Choose to merge horizontally, side by side, or vertically, stacked, and pick a background fill of transparent or white under More Options.
4. Click “Merge WebP to PNG.” The tool builds the combined canvas in your browser and shows a preview instantly.
5. Download your merged PNG, or click “Merge Another Set” to start over with a new group of images.

Why Use This Tool

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Frequently Asked Questions