Paperless-ngx is a document management system that transforms your physical documents into a searchable online archive so you can keep, well, less paper.
Paperless-ngx forked from paperless-ng to continue the great work and distribute responsibility of supporting and advancing the project among a team of people.
https://github.com/paperless-ngx/paperless-ngx
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https://www.logicaldoc.com/download-logicaldoc-community
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https://www.mayan-edms.com
Collaboration features paired with file management
https://www.casebox.org
ONLYOFFICE
Online Document Editor
Online Spreadsheet Editor
Online Presentation Editor
Collaborative editing and commenting
File sharing
Document versions
Document embedding
Integration with Google Drive, Box, Dropbox, OneDrive
Document management
Customizable CRM
Web-to-lead form
Invoicing
Gantt Chart
Milestones
Task dependencies and subtasks
Time tracking
Automated reports
Access rights
Blogs, forums, polls
Calendar
Email Aggregator
People module (employee database)
Instant Messanger
https://launchpad.net/teamlab
