Open Source Spreadsheet Software

EtherCalc is an open source, web-based spreadsheet that allows multiple users to collaborate and work remotely and in real time. Users can edit the same spreadsheet at the same time, with changes instantly reflected on screen. It accepts various mathematical formulae and other functions, and supports several default text formatting directives as well. It can be used for just about anything you’d need a desktop spreadsheet for-- accounting, inventory, scheduling, list management and so much more. EtherCalc is the improved successor to SocialCalc, optimized for simultaneous editing. It’s a great open source alternative to Google sheets, without pesky logins or editing locks.