Keikai Alternatives

EtherCalc is a web spreadsheet.

Aspose.Cells for Cloud is a REST based API for processing spreadsheets in the cloud.

Download this app from Microsoft Store for Windows 10, Windows 10 Mobile, Windows 10 Team (Surface Hub), HoloLens. See screenshots, read the latest customer reviews, and compare ratings for Spreadsheet Conversion Tool.

LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.

Convert spreadsheet to web application

paid Free Trial $5.0 / Monthly (BASIC plan billed yearly.)

Luckysheet is an online spreadsheet that aims to be powerful, simple to configure, and completely open-source.

Simple Spreadsheet

This powerful and professional spreadsheet has all the tools you need to calculate, analyse, summarize, and present your data in numerical reports or colourful graphics.

free

Synchronizing, online-based word processor, part of Google Drive.

SpreadsheetWEB is a no-code platform that helps businesses translate their collective Microsoft Excel expertise into robust web applications with limited or no reliance on IT resources.

paid Free Trial $99.0 / Monthly

Publish your Excel sheets to the web as dynamic web applications with formula support.

Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

Use online spreadsheets, smart forms and beautiful charts in your blog or website. Put your booking and order forms online. Show live charts. Change any cell and the online spreadsheet or live chart immediately updates itself.