# 6 Best Open Source Alternatives for Microsoft Excel

Canonical: https://caniforkit.com/excel
Last updated: 2026-11-07

Looking for the best open source alternative for Microsoft Excel? Compare 6 verified free and open source alternatives to Microsoft Excel (Baserow, Teable, Grist) with license details, self-hosting requirements, and practical trade-offs.

## Microsoft Excel Overview & Subscription Cost
- **Product**: Microsoft Excel
- **Category**: [forms](https://caniforkit.com/category/forms)
- **Paid Subscription Price**: $15/month per seat
- **1-Seat Annualized Cost**: $180/year
- **5-Person Team Annualized Cost**: $900/year
- **10-Person Team Annualized Cost**: $1,800/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for Microsoft Excel or rebuilding it from scratch, deploy one of the 6 battle-tested open-source alternatives like Baserow.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [Baserow](https://caniforkit.com/fork/baserow) | Open Source | MIT | Self-host | ★ 6.3k | [Compare vs Microsoft Excel](https://caniforkit.com/vs/excel-vs-baserow) |
| [Teable](https://caniforkit.com/fork/teable) | Open Source | AGPL-3.0 | Self-host | ★ 22k | [Compare vs Microsoft Excel](https://caniforkit.com/vs/excel-vs-teable) |
| [Grist](https://caniforkit.com/fork/grist) | Open Source | Apache-2.0 | Self-host | ★ 12.1k | [Compare vs Microsoft Excel](https://caniforkit.com/vs/excel-vs-grist) |
| [CryptPad](https://caniforkit.com/fork/cryptpad) | Open Source | AGPL-3.0+ | Self-host | ★ 8.1k | [Compare vs Microsoft Excel](https://caniforkit.com/vs/excel-vs-cryptpad) |
| [IronCalc](https://caniforkit.com/fork/ironcalc) | Open Source | Open Source | Self-host | ★ 4.3k | [Compare vs Microsoft Excel](https://caniforkit.com/vs/excel-vs-ironcalc) |
| [Collabora Online](https://caniforkit.com/fork/collabora-online) | Open Source | Open Source | Self-host | ★ 3.4k | [Compare vs Microsoft Excel](https://caniforkit.com/vs/excel-vs-collabora-online) |

## In-Depth Alternative Profiles

### Baserow
- **Fork Page**: [Baserow Profile](https://caniforkit.com/fork/baserow)
- **Head-to-Head Comparison**: [Microsoft Excel vs Baserow](https://caniforkit.com/vs/excel-vs-baserow)
- **Official Website**: https://baserow.io/
- **Source Code Repository**: https://github.com/baserow/baserow
- **License**: MIT
- **Runs On**: Self-host
- **GitHub Stars**: 6.3k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.
- **The Catch vs Microsoft Excel**: Baserow can hold project rows but does not match Smartsheet's Gantt dependencies, critical-path planning, portfolio reporting, and resource management.
- **Installation**: Hosted signup, or Docker/Docker Compose for self-hosting
- **Setup**: Self-hosting requires Docker, persistent volumes, secrets, and public-URL/TLS configuration
- **Data Storage**: Cloud workspaces live in Baserow Cloud; self-hosted records live in PostgreSQL and uploaded files in the mounted Baserow data volume; CSV export is available

### Teable
- **Fork Page**: [Teable Profile](https://caniforkit.com/fork/teable)
- **Head-to-Head Comparison**: [Microsoft Excel vs Teable](https://caniforkit.com/vs/excel-vs-teable)
- **Official Website**: https://teable.io
- **Source Code Repository**: https://github.com/teableio/teable
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 22k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.
- **The Catch vs Microsoft Excel**: Teable is an Airtable-like database rather than a project execution suite, so dependencies, portfolio reporting, and resource management are substantially weaker.
- **Installation**: Hosted signup, or Docker Compose/Kubernetes for self-hosting
- **Setup**: Self-hosting needs Docker, at least 4 GB RAM, PostgreSQL, secrets, storage, and a public URL; the full AI/App Builder stack is materially heavier than the standalone deployment
- **Data Storage**: Cloud records live in Teable Cloud; self-hosted records live in PostgreSQL, with attachments in local, MinIO, S3, or Aliyun object storage; bases export as .tea backups and tables as CSV

### Grist
- **Fork Page**: [Grist Profile](https://caniforkit.com/fork/grist)
- **Head-to-Head Comparison**: [Microsoft Excel vs Grist](https://caniforkit.com/vs/excel-vs-grist)
- **Official Website**: https://www.getgrist.com/
- **Source Code Repository**: https://github.com/gristlabs/grist-core
- **License**: Apache-2.0
- **Runs On**: Self-host
- **GitHub Stars**: 12.1k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: A versatile data management platform combining spreadsheet simplicity with relational database capabilities for efficient data organization and analysis.
- **The Catch vs Microsoft Excel**: Self-hosting preserves the product but gives up the paid hosted service's managed upgrades, backups, secure sharing, support, and operational reliability.
- **Installation**: Hosted signup, desktop app, or Docker container for self-hosting
- **Setup**: None for hosted or desktop use; shared self-hosting requires Docker, authentication, backups, a public URL, and safe Python-formula sandboxing
- **Data Storage**: Each document is a .grist SQLite database containing table data, attachments, document metadata, and recent history; CSV/Excel exports are also available

### CryptPad
- **Fork Page**: [CryptPad Profile](https://caniforkit.com/fork/cryptpad)
- **Head-to-Head Comparison**: [Microsoft Excel vs CryptPad](https://caniforkit.com/vs/excel-vs-cryptpad)
- **Official Website**: https://cryptpad.org/
- **Source Code Repository**: https://github.com/cryptpad/cryptpad
- **License**: AGPL-3.0+
- **Runs On**: Self-host
- **GitHub Stars**: 8.1k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, they host it
- **Summary**: Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
- **The Catch vs Microsoft Excel**: CryptPad provides a stronger encrypted drive but its whiteboard is markedly less delightful and capable for drawing, libraries, and diagram composition than Excalidraw+.
- **Installation**: Use a public CryptPad instance, or self-host the Node.js service behind a reverse proxy
- **Setup**: Public hosting is immediate; self-hosting requires two domains or subdomains, HTTPS, strict security headers, Node.js configuration, persistent storage, and careful upgrades/backups
- **Data Storage**: Documents are encrypted in the browser before upload; the server stores encrypted document files, blobs, and account pin metadata on its filesystem and cannot read document content

### IronCalc
- **Fork Page**: [IronCalc Profile](https://caniforkit.com/fork/ironcalc)
- **Head-to-Head Comparison**: [Microsoft Excel vs IronCalc](https://caniforkit.com/vs/excel-vs-ironcalc)
- **Official Website**: https://www.ironcalc.com/
- **Source Code Repository**: https://github.com/ironcalc/ironcalc
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 4.3k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
- **The Catch vs Microsoft Excel**: Requires self-hosting setup, updates, and server maintenance compared to managed Microsoft Excel.
- **Installation**: Clone https://github.com/ironcalc/ironcalc or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Collabora Online
- **Fork Page**: [Collabora Online Profile](https://caniforkit.com/fork/collabora-online)
- **Head-to-Head Comparison**: [Microsoft Excel vs Collabora Online](https://caniforkit.com/vs/excel-vs-collabora-online)
- **Official Website**: https://www.collaboraonline.com
- **Source Code Repository**: https://github.com/collaboraonline/online
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 3.4k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.
- **The Catch vs Microsoft Excel**: Requires self-hosting setup, updates, and server maintenance compared to managed Microsoft Excel.
- **Installation**: Clone https://github.com/collaboraonline/online or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

## Frequently Asked Questions

### What is the best free alternative to Microsoft Excel?
The top free alternative to Microsoft Excel is Baserow (open source, MIT). Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted. Other popular Microsoft Excel replacements include Teable, Grist, CryptPad.

### How much does switching from Microsoft Excel to a free alternative save?
Microsoft Excel starts at $15/month per seat ($180/year). Switching a 5-person team to a free alternative like Baserow saves $900 per year in software subscription fees.

### What is the catch when switching away from Microsoft Excel?
While Baserow replaces core Microsoft Excel features without subscription fees, the real-world trade-off is: Baserow can hold project rows but does not match Smartsheet's Gantt dependencies, critical-path planning, portfolio reporting, and resource management.

## Related

- [forms Software Category Hub](https://caniforkit.com/category/forms)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)