Open-source alternatives guide · Updated 2026

Best open-source alternatives to Excel

Q: How should I evaluate Excel alternatives?

Map must-have Excel workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.

Compare the best free and open-source alternatives to Microsoft Excel — 6 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

6verified alternatives
2self-hosted signals
2categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 6 verified open-source alternatives to Microsoft Excel, including Teable, Grist, CryptPad, and Baserow.

Projects appear across Productivity and Infrastructure. 2 options include a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Strongest repository-activity signal: Teable · Jump to ranking · 21.5K stars

About Microsoft Excel

Proprietary product with documented open-source alternatives cataloged on OpenSourceChoice. Compare licenses, repository activity, and self-hosting options befo

Ranked open-source alternatives to Microsoft Excel

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

Teable

Open-source alternative to Microsoft Excel

ProductivityLicense not declared

✨ The Next Gen Airtable Alternative: No-Code Postgres

✨ The Next Gen Airtable Alternative: No-Code Postgres Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Individuals and small teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 29 hours ago

Key capabilities

postgresql

database low-code no-code

Grist

Open-source alternative to Microsoft Excel

ProductivityApache-2.0

Grist is the evolution of spreadsheets.

Grist is the evolution of spreadsheets. Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Individuals and small teams
Deployment: Inspectable source
License: Apache-2.0
Activity: Updated 30 hours ago

Key capabilities

database spreadsheet awesome

TypeScript

CryptPad

Open-source alternative to Microsoft Excel

FranceProductivityAGPL-3.0

Collaborative office suite, end-to-end encrypted and open-source.

Collaborative office suite, end-to-end encrypted and open-source. Review the official repository, license, release activity, and deployment documentation before production adoption

Best for: Individuals and small teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 3 days ago

Key capabilities

javascript

collaboration real-time end-to-end-encryption

Baserow

Open-source alternative to Microsoft Excel

NetherlandsProductivityLicense not declaredSelf-hosted

Build databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 compliant. Best Airtable alternative.

Build databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 compliant. Best Airtable alternative. Re

Best for: Individuals and small teams
Deployment: Self-hostable
License: License not declared
Activity: Updated 27 hours ago

Key capabilities

self-hosted

postgresql

database low-code

IronCalc

Open-source alternative to Microsoft Excel

ProductivityApache-2.0Self-hosted

Main engine of the IronCalc ecosystem

Main engine of the IronCalc ecosystem Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Individuals and small teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 35 hours ago

Key capabilities

self-hosted

react

rust spreadsheet

Collabora Online

Open-source alternative to Microsoft Excel

United KingdomInfrastructureLicense not declared

Issue tracker only. Active development is on Gerrit at https://gerrit.collaboraoffice.com/.

Issue tracker only. Active development is on Gerrit at https://gerrit.collaboraoffice.com/. Review the official repository, license, release activity, and deployment documentation

Best for: Infrastructure teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 3 days ago

Key capabilities

How to choose a Microsoft Excel alternative

Map must-have capabilitiesList the workflows in Microsoft Excel you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about Microsoft Excel alternatives

What are the best open-source alternatives to Microsoft Excel?

OpenSourceChoice currently lists 6 projects with an explicit alternative relationship to Microsoft Excel. Catalog highlights include Teable, Grist, and CryptPad. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to Microsoft Excel free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to Microsoft Excel?

2 options in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate Microsoft Excel alternatives?

Map must-have Microsoft Excel workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.

Browse and filter the catalog

Narrow the same alternatives by search, license, tags, or self-hosting signals when you need a tighter shortlist.

Teable

License not declared

✨ The Next Gen Airtable Alternative: No-Code Postgres

Metrics syncing

Alternatives toMicrosoft Excel +3

Grist

Apache-2.0

Grist is the evolution of spreadsheets.

Metrics syncing

Alternatives toMicrosoft Excel +3

CryptPad

FranceAGPL-3.0

Collaborative office suite, end-to-end encrypted and open-source.

Metrics syncing

Alternatives toMicrosoft Excel +3

Baserow

NetherlandsLicense not declared

Build databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 compliant. Best Airtable alternative.