SXW to WEBP Converter

SXW to WEBP — modern web images from legacy documents

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Modern Web Format

WEBP combines superior compression with excellent quality — your SXW pages become lightweight images perfect for websites.

Cloud Processing

Rendering runs on Convertio servers. Your device handles nothing but the upload and download — no performance impact.

Smaller File Sizes

WEBP typically produces files 25-34% smaller than equivalent JPEG or PNG — efficient storage for rendered document pages.

How to convert SXW to WEBP

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose webp or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your webp file right afterwards

About formats

SXW is the word processing document format used by StarOffice 6.0 and OpenOffice.org 1.0, developed by Sun Microsystems and released in 2002. The format was one of the first mainstream office document formats to adopt an XML-based architecture, packaging document content, styles, metadata, and embedded media in a ZIP archive — a structural approach that directly influenced the later OpenDocument Format (ODF). The content.xml file describes the document body using XML elements for paragraphs, headings, lists, tables, footnotes, and inline formatting, while styles.xml defines the styling rules and meta.xml carries document properties. SXW represented a significant milestone in open-source office software, demonstrating that a non-proprietary XML format could handle the full range of word processing features including change tracking, indexes, cross-references, and complex page layouts. One advantage was transparency and openness — the XML structure made document content inspectable, transformable, and processable using standard tools, a sharp contrast to the opaque binary formats dominant at the time. The format's role as a technological precursor to the ODF standard is another historical significance: the OASIS OpenDocument Technical Committee used the OpenOffice.org XML format (including SXW) as the starting point for developing ODF 1.0. While SXW was superseded by ODT with OpenOffice.org 2.0 in 2005, existing SXW documents can be opened by LibreOffice, Apache OpenOffice, and document conversion tools.
Developer: Sun Microsystems
Initial release: 2002
WebP is an image format developed by Google, announced on September 30, 2010, designed to provide superior compression for web images in both lossy and lossless modes. The lossy mode is derived from the VP8 video codec's intra-frame coding (the same technology used in WebM video), applying block prediction, transform coding, and adaptive quantization to photographic content. The lossless mode uses a distinct algorithm combining predictive coding, color space transforms, backward reference to repeated pixel patterns, and entropy coding. WebP also supports alpha transparency in both modes — lossy WebP with transparency is unique among common web formats, offering semi-transparent images at much smaller sizes than PNG. The format supports animated sequences as well, providing a modern alternative to GIF with full-color support and dramatically better compression. One advantage is substantial file size reduction — lossy WebP produces images 25-35% smaller than JPEG at equivalent visual quality, and lossless WebP is typically 26% smaller than PNG, directly improving web page loading speed and reducing bandwidth costs. Universal browser support provides another key strength: Chrome, Firefox, Safari, Edge, and all mobile browsers now render WebP natively, achieving the broad adoption threshold needed for practical deployment. Google's core web infrastructure (Search, YouTube thumbnails, Gmail) uses WebP extensively, and the format is supported by major CDN platforms, CMS systems, and image processing services. WebP has established itself as the primary modern alternative to JPEG and PNG for web content.
Developer: Google
Initial release: September 30, 2010

Frequently Asked Questions

Why convert SXW to WEBP?

WEBP delivers excellent image quality at smaller file sizes than JPEG or PNG — perfect for publishing document pages on the web.

What opens WEBP files?

Chrome, Firefox, Safari, Edge, and all modern browsers display WEBP. Image viewers like IrfanView and GIMP also support it.

Is the quality comparable to PNG?

WEBP offers both lossy and lossless modes. Lossless WEBP matches PNG quality while producing significantly smaller files.

Is this free?

Basic SXW to WEBP conversions are free. Premium plans on Convertio unlock higher volumes and priority processing queues.

Can I convert on my phone?

Yes — the web-based converter works in any mobile browser. Upload your SXW and download WEBP images from any device.

Does each page produce an image?

Yes. Multi-page SXW documents generate one WEBP image per page with the full page layout preserved in each output.