Fidus Writer is an online collaborative editor for academics.

A simple Java library for handle ODS (Open Document Spreadsheet, compatible with Excel and Libreoffice)

A WYSIWYG document template engine to generates .odt/.ods/docx/xlsx/doc/xls documents for .NET

Preview documents, videos, music, and more with a mouse hover.

ODF generation library for Ruby

Create OpenDocument text files with pure JavaScript

C++ library that translates office documents to HTML

IITJ Family tree

A very fast and lightweight (no dependency) library for creating ODS (Open Document Spreadsheet, mainly for Calc) files in Java. It's a Martin Schulz's SimpleODS fork

odp2md is a document conversion tool for OpenDocument slides to Markdown

Docnamic is a template engine for OpenDocument files (*.odt) based on PHP's DOM and ZIP extensions

Ruby GEM to communicate with the GroupDocs.Conversion REST API. Convert between 50+ file formats including Word documents, Excel spreadsheets, PowerPoint presentations, PDF, OpenDocument files, images & more.

Convert Asciidoc documents to OpenDocument (`.odt`) files.

PHP SDK for communicating with GroupDocs.Viewer REST API. View or render Word, Excel, PowerPoint, CAD, Visio, PDF, OpenDocument, email & image formats.

Library for converting Markdown to OpenDocument (.odt)

A simple Java based text editor with code syntax highlighting and auto completion

Read cells from ODS files in R

Pwic.wiki is a flexible wiki server to support the documentation of your projects that is written with Python and SQLite. Integrated with OpenDocument

Publication-quality circuit schematics