Google Drive - Sheets web based spreadsheet from Google.
Zoho Sheet
Free
Zoho Sheet is an online spreadsheet application that lets you create, share, collaborate and publish spreadsheets from anywhere.
EtherCalc
Open Source
EtherCalc is an opensource web spreadsheet.
Compare Kingsoft Spreadsheets with alternatives
Compare Google Drive - Sheets and Kingsoft Spreadsheets and decide which is most suitable for you.
Compare EtherCalc and Kingsoft Spreadsheets and decide which is most suitable for you.
Compare Zoho Sheet and Kingsoft Spreadsheets and decide which is most suitable for you.