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Web‑based spreadsheet from Google Workspace with real‑time collaboration, AI‑driven insights, and extensive add‑on ecosystem.
Online version of Excel integrated with OneDrive and Microsoft 365, offering familiar Excel features and live co‑authoring.
#4 Zoho Sheet
Cloud spreadsheet with AI data cleaning, automation, and robust integration across Zoho’s suite of business apps.
Part of the OnlyOffice suite; supports Excel formats, collaborative editing, and can be self‑hosted or used in the cloud.
#6 Airtable
Hybrid spreadsheet‑database platform with rich field types, visual views, and powerful automation.
#7 Smartsheet
Enterprise‑grade work execution platform that looks like a spreadsheet but adds project‑management and automation features.
#8 EtherCalc
Open‑source, web‑based spreadsheet that requires no registration; ideal for quick, anonymous collaboration.
#9 Quip
Salesforce‑owned collaborative docs and spreadsheets with chat, task lists, and real‑time editing.
Self‑hosted online version of LibreOffice Calc, offering full‑featured spreadsheet capabilities in the browser.
Free, cloud‑enabled spreadsheet component of the WPS Office suite, compatible with Excel file formats.
#12 Coda
Doc‑like platform where tables act as spreadsheets, enriched with formulas, automation, and building blocks.
#13 Notion Tables
Embedded database tables within Notion pages; support formulas, views, and collaborative editing.
#14 Sheetgo
Connects multiple spreadsheets across Google Sheets, Excel, and other platforms; focuses on data pipelines and automation.
#15 ThinkFree Office
Web‑based office suite offering a spreadsheet component compatible with Excel formats and collaborative editing.
Enhanced version with advanced data‑validation, scripting (Deluge), and enterprise‑grade security.
Full office suite you can deploy on your own server; includes collaborative spreadsheet editing with version control.
While primarily a BI tool, its dataflow editor provides spreadsheet‑style data shaping and collaboration.
Low‑code app builder that lets you create spreadsheet‑style data tables with workflow automation.
#20 SeaTable
Open‑source collaborative spreadsheet/database platform that can be self‑hosted or used in the cloud.
#21 Grist
Hybrid spreadsheet‑database tool with powerful formulas, relational data, and real‑time collaboration.