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Best Open-Source Smartsheet Alternatives (2026)

10 self-hostable, open-source projects that replace Smartsheet — without enterprise pricing for basic grids. Each is scored for how hard it is to self-host, with one-click deploy options where they exist.

Smartsheet charges enterprise-tier pricing for what are, at the core, grids and basic work-management views, and licensing scales painfully as you add collaborators. Self-hosting an open-source grid removes the per-seat bill and keeps project data on your own infrastructure.

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Our picks at a glance

Easiest to self-host
Baserow

Difficulty 2/5 with Docker, Compose and Kubernetes deploys, the simplest of the three options.

Most powerful
Grist

A relational spreadsheet with a real database underneath and deep formula support, the most capable engine of the three.

Most active
Baserow

At ~9k stars it has the most momentum of this small list.

Best managed option
Baserow

Offers official managed hosting and is also the easiest to self-host, so either path is low-friction.

Compare all 10 alternatives

ProjectDeployManagedLicense
DBeaver Community
Java
51k ★
1/5
Effortless
Manual
Apache-2.03 days agoRepo
Directus
Nodejs
37k ★
3/5
Moderate
Docker
Docker Compose
BUSL-1.13 days agoRepo
ChartDB
Nodejs
23k ★
2/5
Easy
Docker
Manual
AGPL-3.014 days agoRepo
Cube
TypeScript
20k ★
3/5
Moderate
Docker
Docker Compose
+1
Apache-2.03 days agoRepo
Grist
TypeScript
11k ★
2/5
Easy
One-Click
Docker
+2
Apache-2.03 days agoRepo
Baserow
Python
9k ★
2/5
Easy
Docker
Docker Compose
+1
MIT1 month agoRepo
DbGate
JavaScript
7.2k ★
2/5
Easy
Docker
Manual
MIT3 days agoRepo
Mathesar
Docker
5.1k ★
3/5
Moderate
Docker
Docker Compose
+1
GPL-3.04 days agoRepo
Querybook
Python
2.3k ★
4/5
Involved
Docker
Docker Compose
Apache-2.020 days agoRepo
SeaTable
Python
706 ★
3/5
Moderate
Docker
Docker Compose
+1
Apache-2.08 months agoRepo

What to look for: You want a tool that pairs a spreadsheet-style grid with real database structure and views your team will actually use, plus unlimited rows so large project sheets don't hit a tier. Check the license fit (Baserow's MIT is the most permissive of the three) and that managed hosting exists if you don't want to own the ops.

Head-to-head:DBeaver Community vs SmartsheetDirectus vs SmartsheetChartDB vs SmartsheetCube vs SmartsheetGrist vs Smartsheet

The alternatives, reviewed

  1. #1
    DBeaver Community
    Self-host: Effortless

    Universal database tool for developers — SQL editor, ERD, and data browser

    51k Java Apache-2.0 3 days ago
    How it compares to Smartsheet
    • Desktop-only; no web or team-sharing capabilities in the Community Edition
    • Collaboration features (shared connections, team queries) require the paid Enterprise Edition
    • Heavy JVM startup time and memory footprint compared to newer database tools
    RepoDetails & deploy →
  2. #2
    Directus
    Self-host: Moderate

    Instant REST and GraphQL API for any SQL database with an intuitive admin app

    37k Nodejs BUSL-1.1 3 days ago
    How it compares to Smartsheet
    • BUSL-1.1 license prohibits competing managed-hosting products without a commercial license
    • No built-in spreadsheet-style formula or pivot table UI like Airtable
    • Automations (Flows) are less mature than dedicated workflow tools like Zapier
    • Advanced data visualization requires an external BI tool; Directus provides data, not charts
    RepoDetails & deploy →
  3. #3
    ChartDB
    Self-host: Easy

    Browser-based database diagram editor that visualizes your schema with a single query

    23k Nodejs AGPL-3.0 14 days ago
    How it compares to Smartsheet
    • Diagramming and visualization only; no data editing, querying, or CRUD interface
    • No team collaboration features (comments, live multiplayer editing) in self-hosted version
    • No support for NoSQL or non-relational database schemas
    • No migration generation or schema diffing workflow tools
    RepoDetails & deploy →
  4. #4
    Cube
    Self-host: Moderate

    Semantic layer and headless BI for building data apps on any database

    20k TypeScript Apache-2.0 3 days ago
    How it compares to Smartsheet
    • Not an end-user spreadsheet; requires developer effort to define data models in YAML or JavaScript
    • No built-in visual grid editor; intended to power custom-built frontends, not replace Airtable directly
    • Pre-aggregation setup for large datasets requires careful tuning and database-specific knowledge
    RepoDetails & deploy →
  5. #5
    Grist
    Self-host: Easy

    Modern relational spreadsheet combining the flexibility of a grid with a real database

    11k TypeScript Apache-2.0 3 days ago
    How it compares to Smartsheet
    • UI is more spreadsheet-centric and less polished than Airtable for app-style use.
    • Fewer pre-built view types (no native kanban/gallery as rich as Airtable).
    • Real-time multi-user collaboration is less fluid than Google Sheets.
    • Smaller ecosystem of integrations and marketplace widgets.
    RepoDetails & deploy →
  6. #6
    Baserow
    Self-host: Easy

    No-code open-source database and Airtable alternative

    9k Python MIT 1 month ago
    How it compares to Smartsheet
    • Fewer prebuilt templates and integrations than Airtable.
    • Automations and interface designer are newer and less powerful.
    • Smaller third-party app ecosystem.
    • Some features are gated to the paid/enterprise tier.
    RepoDetails & deploy →
  7. #7
    DbGate
    Self-host: Easy

    Cross-platform database manager for MySQL, PostgreSQL, MongoDB, SQLite and more

    7.2k JavaScript MIT 3 days ago
    How it compares to Smartsheet
    • No spreadsheet-style formula engine; it is a database manager, not a spreadsheet replacement
    • Multi-user team collaboration features are limited; primarily designed for individual use
    • BI/visualization capabilities are basic compared to dedicated tools like Metabase
    RepoDetails & deploy →
  8. #8
    Mathesar
    Self-host: Moderate

    Spreadsheet-like UI for collaborative PostgreSQL data management

    5.1k Docker GPL-3.0 4 days ago
    How it compares to Smartsheet
    • PostgreSQL only; no support for MySQL, SQLite, or other databases
    • No formula engine comparable to Airtable's or Google Sheets' calculated fields
    • Automations and integrations with external services are not yet implemented
    • Relatively young project; some UI rough edges and missing power-user features
    RepoDetails & deploy →
  9. #9
    Querybook
    Self-host: Involved

    Pinterest's open-source big data query notebook for collaborative SQL analytics

    2.3k Python Apache-2.0 20 days ago
    How it compares to Smartsheet
    • Primarily designed for big data query engines (Hive, Presto); poor fit for everyday OLTP databases
    • No spreadsheet-style formula editing; purely a SQL notebook tool
    • Requires Elasticsearch and Celery workers, adding significant infrastructure overhead
    RepoDetails & deploy →
  10. #10
    SeaTable
    Self-host: Moderate

    Spreadsheet-database for teams with unlimited rows and no API call limits

    706 Python Apache-2.0 8 months ago
    How it compares to Smartsheet
    • Core dtable-server component is proprietary, so it is not fully open-source.
    • The public GitHub repo is mostly docs/installer rather than full source code.
    • Smaller community and ecosystem than Airtable or NocoDB.
    • Advanced features and higher row limits require paid Enterprise licensing.
    RepoDetails & deploy →

The verdict

Baserow is the most balanced Smartsheet replacement here: easiest to deploy, most active, MIT-licensed, and available as managed hosting. Pick Grist instead if your sheets are formula-heavy and you want a genuine relational engine, or SeaTable if unlimited rows with no API limits is the deciding factor.

Still deciding? Compare DBeaver Community vs Directus side by side →

Smartsheet alternatives — frequently asked questions

Is there a free open-source alternative to Smartsheet?

Yes. Baserow (MIT), Grist (Apache-2.0) and SeaTable (Apache-2.0) are all free and self-hostable. Baserow and Grist are the easiest to run at difficulty 2/5.

Which Smartsheet alternative is easiest to self-host?

Baserow and Grist, both rated 2/5. Grist additionally offers a One-Click deploy if you want the fastest possible start.

Can I avoid Smartsheet's per-seat pricing entirely?

Yes. Self-hosting Baserow, Grist or SeaTable means no per-user license fees at all; your only cost is the server you run it on.

Do any of these remove row or API limits on large sheets?

SeaTable specifically advertises unlimited rows and no API call limits. With Baserow and Grist self-hosted, your scale is bounded by your own hardware rather than a plan.

Is there a managed option so I don't run servers?

Yes. Baserow, Grist and SeaTable all offer an official managed/cloud version, so you can leave Smartsheet without taking on infrastructure work.

Which has the most permissive license?

Baserow is MIT, the most permissive of the three. Grist and SeaTable are both Apache-2.0, which is also business-friendly.

Keep exploring

All Databases & Spreadsheets →Self-hosted directory →Easiest to self-host →
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