Best Keikai Alternatives & Competitors in 2025

EtherCalc is a web spreadsheet.

Key EtherCalc features:

Real-time Collaboration Accessibility Open Source No Sign-Up Required

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

Key Aspose.Cells for Cloud features:

Cross-Platform Compatibility Comprehensive Excel File Manipulation Scalability and Performance No Installation Required

Setuply: Transform Clients into Brand Advocates. An AI-powered, purpose-built platform for client onboarding and lifecycle management, helping B2B teams accelerate revenue recognition, boost retention, and scale operations with confidence.

Key Setuply features:

Project Management Case Management Secure Data Staging Client Impact Control Panel

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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. .

Key Spreadsheet Conversion Tool features:

User-Friendly Interface Integration with Microsoft 365 Automated Conversion Processes

Simple Spreadsheet.

Key Simple Spreadsheet features:

Lightweight Open Source Simplicity Cross-Platform

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.

Key SSuite Axcel Professional Spreadsheet features:

Wide Screen Compatible SQL Queries ODBC Connection Easy to Set-up and use

free

Free Excel Viewer is a desktop application that enables you to view and edit Excel XLS/XLSX or more table formats on Windows without MS Office, and Excel installed.

Key Free Excel Viewer features:

Cost Efficient Ease of Use Compatibility Lightweight

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

Key LibreOffice - Calc features:

Cost Compatibility Community Support Customization

Tinysheet is a web-based simple, lightweight tool for making and editing spreadsheets on mobile or desktop.

Key Tinysheet features:

User-Friendly Interface Collaboration Features Cloud-Based Access

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

Key Publisheet features:

User-Friendly Interface Collaborative Features Cloud-Based Accessibility Integration Capabilities

Turn any Google sheet into an API instantly, for free. Power websites, apps, or whatever you like, all from a spreadsheet. Changes to your spreadsheet update your API in realtime. Neat.

Key Sheety features:

Easy integration Cost-effective No-code solution Automation capabilities

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.

Key SpreadsheetWEB features:

Ease_of_Use Excel_Integration Customization Data_Connectivity

paid Free Trial $99.0 / Monthly

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

Key Google Sheets features:

Accessibility Collaboration Integrations Cost

Convert spreadsheet to web application.

Key Appizy features:

Responsive layout

Free Trial $4.0 / Monthly (BASIC plan)