Open-source Zoho Workplace alternatives

CryptPad is an open-source collaboration suite with end-to-end encryption. Documents are synchronized between collaborators in real time, and because user data is encrypted, an attacker who breaches the server cannot read the stored content. Administrators who run unmodified code and the service itself also cannot see what users store.

The encryption happens in the browser before data is sent to the server or to collaborators. The README is candid about a limit of this model: the code that does the encrypting is delivered by the host server, as on any website, so users must trust the administrator to keep the server secure. Repository topics mention collaborative editing, real-time work and the ChainPad algorithm.

CryptPad is written in JavaScript and licensed under AGPL-3.0. A developer guide covers setting up a local instance, and an admin guide covers production deployments. Official Docker images for AMD64 and ARM64 are published with every release, and a Dockerfile and docker-compose.yml are included in the repository.

ONLYOFFICE Groups, formerly known as Community Server, is an open-source collaborative platform that serves as a central workspace for a team. It brings documents, projects, customers and email together in one place, and from version 11.0 it is distributed under the Apache 2.0 licence.

Document management covers file sharing with flexible permissions, links to cloud storage such as Google Drive, Box, Dropbox, OneDrive and ownCloud, and embedding of documents in websites. Project management offers milestones, tasks and subtasks, Gantt charts, time tracking and automated reports. The CRM stores contacts and interactions, generates invoices, tracks payments and offers web-to-lead forms.

Collaboration tools add blogs, forums, an internal wiki, a shared calendar, a mail client that aggregates several accounts, and an employee directory. It forms the base of the wider ONLYOFFICE Workspace suite, which can be extended with ONLYOFFICE Docs for document, spreadsheet, presentation and PDF editing, a mail server, Talk messaging and a control panel. The code base is C#.