Free Office & Productivity Software
MacDown
MacDown is a free and open-source markdown editor for macOS. MacDown provides live preview, syntax highlighting and a minimalistic appearance for easy Markdown formatting. The editor is influenced by Mou, and I try to mimic much of its behaviour as much as possible both in UI and the logic. MacDown is loved and use by many thanks to its highly customisable Markdown rendering options, syntax highlighting in fenced code blocks, and sophisticated auto-completion.
Apache OpenOffice
Apache OpenOffice is a free and open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, and databases. It is one of the successor projects of OpenOffice.org and the designated successor of IBM Lotus Symphony. With Apache OpenOffice all data is stored in an open standard format allowing users to read and write files from all major office software.
Calendso
Calendso is a free and open source self-hosted Calendly alternative. Calendso is white-label by design and can be hosted on-premise or can be hosted and managed by Calendso for a monthly charge. The calendar software is built to be API-driven and ready to be deployed on your own domain and does not add hurdles to the self-hosting process to favor the managed solution. Calendso provides modern features and comes with integrations for popular third-party services like Salesforce, Zapier, HubSpot and many more. While also allow you and your company to build custom integrations for any platform out there, and integrate seamlessly with your existing workflow.
LibreOffice
LibreOffice is a free and open source suite of applications for creating text documents, spreadsheets, presentations and more. With LibreOffice you can open almost any legacy document, and it's the only free and open source office suite available on all major desktop platforms. It features a clean interface and feature-rich tools help you unleash your creativity and enhance your productivity. The suite includes the word processor LibreOffice Writer, the spredsheet LibreOffice Calc, the presentation program LibreOffice Impress, the vector graphics editor LibreOffice Draw, the database management program LibreOffice Base and the math tool LibreOffice Math.
Gmail
Arguably the most popular email service in the world, Gmail provides a email inbox for over 1.5 billion users. With Gmail you can create an email account for free that manages emails and contacts in the same application. Gmail is web-base but provides clients for mobile devices and supports third-party programs that synchronize email content through POP or IMAP protocols.
Apple Numbers
With Numbers, you can create beautiful spreadsheets that include impressive tables and images. Apple Numbers is a real-time collaboration spreadsheet that can be used to work solo or together with your team in one unified experience. Apple Numbers supports the Apple Pencil and can be used on your Mac, iPad, iPhone or Windows PC.
SoftMaker FreeOffice
SoftMaker FreeOffice is free and highly intuitive document creation software for business and personal use. SoftMaker FreeOffice is compatible with Microsoft documents such as as DOCX, XLSX, and PPTX allowing you to migrate from and work interchangably with the Microsoft line of office products. The FreeOffice suite includes a word processor, a spreadsheet application and a presentation application.
Metabase
Metabase is an open-source tool that allow data and analytics to be shared fast and easy within a company. The open-source business intelligence server provided by Metabase can be installed within 5 minutes. Metabase can also, easily be integrated with third-pary services and databases like Amazon Redshift, Druid, Google Analytics, Google BigQuery, H2, MongoDB, MySQL, Oracle, PostgreSQL, Presto, Snowflake, SparkSQL, SQL Server, SQLite and Vertica. The software is provided free and open-source under the GNU Affero General Public License (AGPL) and managed server solutions can be purchased at a monthly subscription.
SlideCaptain
With SlideCaptain you can create modern presentations with HTML5, CSS3, full page fluid layouts in your browser.