Best Open365 Alternatives (27)
Looking for a Open365 alternative? We've compiled the best options based on user reviews, features, and pricing to help you find the right fit.
What is Open365? Open365 is an open-source alternative to Microsoft 365 and Google Workspace, providing core productivity apps like word processing, spreadsheets, presentations, email, calendar, contacts, and more. It is free, customizable, and focused on privacy and data ownership.
Top Alternatives to Open365
ONLYOFFICE is an open-source office suite that includes online document editors for text documents, spreadsheets, and presentations. It can be …
EssentialPIM is a personal information manager software for Windows that allows you to organize contacts, calendars, tasks, notes, passwords, and …
Microsoft 365 (formerly Office 365) is a subscription service from Microsoft that includes access to popular Office apps like Word, …
Apache OpenOffice is a free, open source office suite for Windows, macOS and Linux. It includes features like a word …
Apple Mail
freeApple Mail, often simply referred to as Mail, is the default email client included with Apple's macOS and iOS operating …
Claws Mail is an open-source email client and news client for Linux and other Unix-like operating systems. It supports features …
GMX Online Office is a free online office suite that includes web-based versions of Word, Excel, and PowerPoint. It offers …
Graphite Docs is a document creation and collaboration platform that allows teams to create, share, and manage docs from a …
Pegasus Mail is an email client for Windows that focuses on security, stability and efficiency. It supports POP3, IMAP, SMTP …
Ultra Office is an office suite that includes word processing, spreadsheet, presentation, and other productivity software. It is known for …
WPS Office is an office suite that includes word processing, spreadsheets, and presentation software. It is a free alternative to …
Outlook is an email, calendar, and contacts manager developed by Microsoft. It is part of the Microsoft Office suite of …
Conholdate.Total for .NET is a .NET library that allows developers to work with over 100 document and image formats in …
OpenProject is an open source project management software. It provides tools to plan projects and tasks, track time and costs, …
More Similar Software
Open365 Overview
Open365 is an open-source, self-hosted alternative to commercial solutions like Microsoft 365 and Google Workspace. It provides core productivity apps including a word processor, spreadsheet software, presentation software, email, calendar, contacts manager, and more.As open-source software, Open365 aims to give users control over their data and privacy. Rather than storing data on Microsoft or Google servers, Open365 enables users to host their own servers and retain ownership over their documents, emails, calendars, contacts, and other data.Some key features and benefits …
Quick Comparison
| Software | Pricing | Score |
|---|---|---|
| Open365 | N/A | — |
| CryptPad | N/A | — |
| ONLYOFFICE | N/A | — |
| EssentialPIM | N/A | — |
| Microsoft 365 (Office) | N/A | — |
| Apache OpenOffice | N/A | — |
| Apple Mail | free | — |
| Claws Mail | N/A | — |
| GMX Online Office | N/A | — |
| Graphite Docs | N/A | — |
| Pegasus Mail | N/A | — |
Read full Open365 review → | Browse Office-Productivity software