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RelateDB

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Free, offline-first, browser-based ERD studio for visual database schema design.

Free, no paid tier
Free Data & Databases Developer Tools UI/UX Design Diagramming
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Reviews on G2 SourceForge
69 reviews tracked

The Bottom Line

Price
Free, no paid tier. Compare plans

Key facts

  • Browser-based ERD studio for visual database schema design.
  • Offline-first with local persistence, no account or internet required.
  • Supports importing SQL/DBML and exporting to SQL (Postgres/MySQL), DBML, or images.

Pros

  • Good for relationship tracking
  • Simple interface
  • Focus on networking
  • Useful for sales/networking

Cons

  • Newer product
  • Limited integrations
  • Basic feature set

What is RelateDB?

RelateDB is a browser-based Entity-Relationship Diagram (ERD) studio designed for visually modeling database schemas. It allows users to create, edit, and manage tables, columns, and relationships with an intuitive drag-and-drop interface. The tool emphasizes an offline-first approach, meaning all work persists locally in the browser via IndexedDB, eliminating the need for servers or accounts and ensuring continuous productivity even without an internet connection. This tool is ideal for developers, database administrators, and anyone involved in designing or documenting database structures. It supports importing existing schemas from DBML or SQL CREATE TABLE statements, and exporting to SQL for Postgres/MySQL, DBML, or image formats (PNG/JPG/SVG) for sharing and documentation. Key features include an auto-layout engine, copy/paste functionality with history, and the ability to organize schemas into workspaces, making it a comprehensive solution for efficient database modeling.

Available on: Web

Data compiled by Toolradar Pricing checked · How we evaluate
Source relatedb.com

Ratings Across the Web

2.6 (69 reviews)

RelateDB holds an aggregate rating of 2.6 out of 5 from 69 reviews across G2 and SourceForge, last checked October 22, 2026.

G2 2 reviews
4.3/5
SourceForge 67 reviews
2.2/5

Ratings aggregated from independent review platforms. Learn more

Preview

Key Features

  • Database management
  • Relationship mapping
  • Data visualization
  • Query builder
  • Import/export
  • Collaboration

Pricing Plans

Pricing checked Oct 4, 2026. Source: relatedb.com, read Oct 4, 2026

RelateDB plans and prices, checked October 2026
Plan Price Details
Free

$0

  • Offline-first design
  • Database schema creation
  • ER diagram visualization
+1 more
  • Local storage
View full pricing

Is RelateDB worth the price?

Great value

RelateDB offers a generous free tier, providing a fully functional offline-first ERD studio at no cost.

This makes it exceptionally fair and accessible for individual developers or small teams. It's best for those who need a robust schema design tool without any financial commitment.

Hidden Costs & Gotchas

Limited to local storage

Full RelateDB pricing: every plan, hidden costs and alternatives

RelateDB by the numbers

RelateDB compared with 56 Diagramming tools on Toolradar, as of Nov 2026
Metric RelateDB Peer median Position (1 is best)
Free plan Yes 75% have one n/a
Listed as an alternative to 1 tool 1 #24 of 56 (joint)
User rating 2.6/5 (across the web, 69 ratings) 4.4/5 #27 of 27 tools with 20+ reviews

Listed as an alternative to: #24 on 2026-10-16 to #24 on 2026-11-02 (rank among 56 tools, 1 is best).

Each position is counted among the tools that have data for that row, as noted under it. All Diagramming data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “RelateDB by the numbers”, Nov 2026.

Reviews

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2.6/5

Across 69 verified user reviews on SourceForge, G2

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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RelateDB FAQ

How does RelateDB support continuous productivity without an internet connection?

RelateDB is an offline-first tool, meaning all user work persists locally within the browser using IndexedDB. This design eliminates the need for server connections or user accounts, ensuring that users can continue designing database schemas even without an active internet connection.

Which teams would benefit most from using RelateDB?

RelateDB is ideal for developers, database administrators, and anyone involved in designing or documenting database structures. Its visual modeling capabilities and offline-first approach make it suitable for individuals or small teams needing efficient schema design.

How does RelateDB compare to DbSchema for database schema design?

RelateDB is a free, offline-first, browser-based ERD studio emphasizing a simple interface and local persistence. In contrast, DbSchema is a more established tool that typically offers a broader feature set and more extensive integrations, often requiring a paid license.

What kind of limitations should users be aware of when choosing RelateDB?

RelateDB is a newer product with a basic feature set and limited integrations compared to more mature tools. While it excels in visual ERD design, users requiring extensive third-party tool integrations or advanced database management features might find it less comprehensive.

Does RelateDB include a free tier?

RelateDB is entirely free to use, with no paid plans required for accessing its features. This makes it an accessible option for visual database schema design without any cost barriers.

Can RelateDB integrate with existing database schemas?

Yes, RelateDB supports importing existing schemas from DBML or SQL CREATE TABLE statements. This allows users to quickly bring their current database structures into the tool for visual modeling and further refinement.

How does RelateDB facilitate sharing and documentation of database designs?

RelateDB allows users to export their database designs to various formats for sharing and documentation. These include SQL for Postgres/MySQL, DBML, and image formats such as PNG, JPG, or SVG.

Source: relatedb.com

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