Free online DJVU to WEBP converter

Source format: DjVu

DjVu is a document format designed for storing scanned pages, especially books, magazines, and archival documents. It is known for high compression with good visual quality, which makes it popular for large scanned collections where file size matters. DjVu files often contain page images, text layers, and sometimes OCR data, so they are commonly used in digital libraries and document archives.

Target format: WebP

WebP is an image format developed by Google for the web. It supports lossy and lossless compression, transparency, and animation. Compared with older formats like JPEG and PNG, WebP often provides smaller file sizes at similar quality, making it useful for websites, previews, and modern image delivery.

How to perform the conversion

Because DjVu is usually a multi-page document and WebP is an image format, the conversion typically means exporting each DjVu page as a separate WebP image. If your DjVu contains multiple pages, you will usually get one WebP file per page unless you create an animated WebP afterward.

Best desktop workflow:

1. Install a DjVu-capable tool such as DjView, MuPDF, or ImageMagick with DjVu support.
2. Open the DjVu file and export or render the pages to an intermediate image format if needed.
3. Convert the rendered images to WebP.

Using ImageMagick from the command line:

1. Make sure ImageMagick and DjVu support are installed.
2. Convert a DjVu page or rendered output to WebP with a command such as magick input.djvu output.webp.
3. If the file has multiple pages, use page numbering or a batch process to create separate WebP files for each page.

Using a document viewer/editor:

1. Open the DjVu file in a viewer that can export pages.
2. Choose File → Export or File → Save As if available.
3. Select an image output if the program offers it, then convert that image to WebP in a second step.

Online conversion: You can convert DjVu to WebP on 101convert.com for free, without installing any software.

Notes on quality and limitations

DjVu to WebP is not a document-preserving conversion. WebP stores images, not a full document structure, so page order, text layers, bookmarks, and document metadata may be lost unless you handle them separately. If the DjVu file is scanned at low resolution, the resulting WebP will not improve the source quality; it will only preserve what is already there.

For best results, export at the original page resolution or a resolution appropriate for your use case. Use lossless WebP if you want to preserve fine details, text edges, or line art. Use lossy WebP if smaller file size is more important than exact fidelity. If you need a single file for a multi-page DjVu, consider creating an animated WebP only if your software supports it; otherwise, separate WebP files are the normal output.