Open Source File Format Libraries for Every Platform

MIT-licensed SDKs for working with documents, spreadsheets, presentations, 3D models, and more — available for Python, TypeScript, JavaScript, .NET, Java, Go, PHP, C++, and other popular platforms.

Available Now

Production-ready FOSS libraries you can install today. Each library is MIT-licensed, ships with zero proprietary dependencies, and is published to the standard package registry for its platform.

Aspose.Cells for FOSS

Create, modify, and export Excel spreadsheets — free and open-source, with zero Microsoft Office dependency.

Aspose.Cells FOSS for Python

Aspose.Slides for FOSS

Create, read, and edit PowerPoint presentations — free and open-source, no Office dependency required.

Aspose.Slides FOSS for Python

Aspose.Note for FOSS

Read, convert, and process Microsoft OneNote files, free and open-source, with no Microsoft Office required.

Aspose.Note FOSS for Python

Aspose.3D for FOSS

Load, create, transform, and export 3D scenes — free and open-source, available for Python and TypeScript.

Aspose.3D FOSS for Python

Aspose.3D FOSS for TypeScript

Coming Soon: More Platforms, More Formats

We are expanding the Aspose FOSS ecosystem to cover every major platform and language. Expect dedicated open source libraries for .NET, Java, C++, Go, PHP, JavaScript, and beyond — bringing the same MIT-licensed, no-dependency philosophy to your language of choice.

Aspose.Words for FOSS

MIT-licensed open-source libraries for creating, editing, converting, and automating Word documents.

Aspose.PDF for FOSS

MIT-licensed open-source libraries for creating, editing, converting, and automating PDF documents.

Aspose.Email for FOSS

Open-source libraries for processing emails, PST/OST files, and IMAP, SMTP, POP3 automation.

Aspose.Imaging for FOSS

Open-source libraries for image creation, editing, and conversion across raster and vector formats.

Aspose.BarCode for FOSS

Open-source barcode SDKs for generating, scanning, and automating 1D, 2D, and postal codes.

Aspose.Diagram for FOSS

Open-source libraries for creating, editing, and converting Visio diagrams with shape automation.

Aspose.Tasks for FOSS

Open-source libraries for reading, writing, and managing MPP/XML project files and scheduling.

Aspose.OCR for FOSS

Open-source OCR libraries for extracting text from images, scans, and photos.

Aspose.OMR for FOSS

Open-source OMR libraries for designing and recognizing forms from scanned images.

Aspose.CAD for FOSS

Open-source libraries for viewing, converting, and processing DWG, DXF, DGN, and other CAD formats.

Aspose.HTML for FOSS

Open-source libraries for editing, rendering, and converting HTML, MHTML, EPUB, and SVG.

Aspose.GIS for FOSS

Open-source libraries for reading, writing, and converting Shapefile, GeoJSON, KML, and GPX.

Aspose.ZIP for FOSS

Open-source libraries for creating, extracting, and managing ZIP archives with encryption.

Aspose.Page for FOSS

Open-source libraries for creating, editing, and converting XPS, EPS, and PostScript documents.

Aspose.PSD for FOSS

Open-source libraries for creating, converting, and automating Photoshop PSD and PSB files.

Aspose.PUB for FOSS

Open-source libraries for loading, viewing, and converting Microsoft Publisher .PUB files to PDF.

Aspose.SVG for FOSS

Open-source libraries for creating, editing, rendering, and converting SVG to PDF, PNG, and JPEG.

Aspose.Finance for FOSS

Open-source libraries for processing, validating, and converting XBRL, iXBRL, and OFX financial data.

Aspose.Drawing for FOSS

Open-source drawing libraries for rendering text, shapes, and images for charts and reports.

Aspose.Font for FOSS

Open-source libraries for inspecting, editing, and converting TTF, WOFF, CFF, and OpenType fonts.

Aspose.TeX for FOSS

Open-source libraries for compiling and converting TeX and LaTeX to PDF, XPS, and images.

Aspose.Medical for FOSS

Open-source libraries for parsing and converting DICOM, HL7, and CDA health data.