Amundsen vs Atlan: Which is Better in 2026?
Choosing between Amundsen and Atlan comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Atlan wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Amundsen if you need a fully free option.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Amundsen
Open-source data discovery and metadata engine for enhanced data trust and productivity.
Best for you if:
- • You want a fully free tool (Atlan requires payment)
Atlan
Modern data workspace for discovery, understanding, and collaboration
Best for you if:
- • You want modern cloud-native architecture
| At a Glance | Amundsen | Atlan |
|---|---|---|
Starts at | Free 100% free | Custom |
Category | Data & Databases Developer Tools | Data & Databases Analytics |
Rating | n/a | 4.5/5 G2 4.5 134 reviews |
Free plan | Yes | No |
Watch out for | Requires internal engineering resources for setup and maintenance. | This is rarely included in the license quote. |
Choose Amundsen or Atlan?
Choose Amundsen if
- You want a fully free tool (Atlan requires payment)
- You want enhances data discoverability and trust
- You want increases productivity for data professionals
Choose Atlan if
- You want modern cloud-native architecture
- You want intuitive UI with fast implementation
In-Depth Analysis
Amundsen
Open-source data discovery and metadata engine for enhanced data trust and productivity.
Amundsen is an open-source project, making its 'Open Source' tier completely free.
Watch out
Requires internal engineering resources for setup and maintenance.
Strengths
- Pro: Enhances data discoverability and trust
- Pro: Increases productivity for data professionals
- Pro: Reduces data silos and improves collaboration
- Pro: Provides automated and curated metadata
- Pro: Open-source with an Apache License 2.0
Weaknesses
- Con: Requires self-hosting and setup
- Con: Integration effort may be needed for specific data sources
- Con: Community support may be the primary resource
Key features
Atlan
Modern data workspace for discovery, understanding, and collaboration
Atlan is a modern active metadata platform (data catalog) with fully opaque pricing, there are no public prices, and you must talk to sales.
Watch out
This is rarely included in the license quote.
Strengths
- Pro: Modern cloud-native architecture
- Pro: Intuitive UI with fast implementation
- Pro: Automated column-level lineage
- Pro: Strong integration with modern data stack (dbt, Snowflake, etc.)
- Pro: Gartner Magic Quadrant Leader 2026
Weaknesses
- Con: Custom pricing lacks transparency
- Con: Younger product than Alation/Collibra
- Con: May lack some enterprise governance features
- Con: Premium pricing for smaller teams
Key features
Pricing: Amundsen vs Atlan
| Plan | Amundsen | Atlan |
|---|---|---|
| Tier 1 | Free Open Source | Custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Amundsen pricing and Atlan pricing.
Key Takeaways
Atlan
- Our pick for this comparison
Amundsen
- Completely free
The Bottom Line
Atlan wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. That said, Amundsen is free, hard to beat on price.
Frequently Asked Questions
Is Amundsen or Atlan better in 2026?
Atlan wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Amundsen for data & databases workflows (main strength: enhances data discoverability and trust). Pick Atlan for data & databases workflows (main strength: modern cloud-native architecture).
What are Amundsen and Atlan used for?
Amundsen: Open-source data discovery and metadata engine for enhanced data trust and productivity. Atlan: Modern data workspace for discovery, understanding, and collaboration.
What does Amundsen cost vs Atlan?
Amundsen is free. Atlan pricing is on their site.
What's the main difference between Amundsen and Atlan?
Amundsen's main strength: enhances data discoverability and trust. Atlan's main strength: modern cloud-native architecture.