OpenMetadata vs Stemma: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for OpenMetadata and Stemma side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, OpenMetadata leads on a free plan. We do not name an overall winner for this pair.
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:
OpenMetadata
The #1 open-source platform for unified data discovery, observability, and governance.
Best for you if:
- • You want a fully free tool (Stemma requires payment)
Stemma
Automated data catalog for modern data teams.
Best for you if:
- • You want reduces manual effort in data cataloging
| At a Glance | OpenMetadata | Stemma |
|---|---|---|
Starts at | Free 100% free | Not published |
Category | Data & Databases Developer Tools | Data & Databases Developer Tools |
Rating | n/a | n/a |
Free plan | Yes | No |
Choose OpenMetadata or Stemma?
Choose OpenMetadata if
- You want a fully free tool (Stemma requires payment)
- You want open-source with an active and growing community
- You want comprehensive unified platform for various metadata use cases
Choose Stemma if
- You want reduces manual effort in data cataloging
- You want improves data discoverability for data teams
In-Depth Analysis
OpenMetadata
The #1 open-source platform for unified data discovery, observability, and governance.
OpenMetadata's Free SaaS tier is incredibly generous, offering a cloud service for free.
Strengths
- Pro: Open-source with an active and growing community.
- Pro: Comprehensive unified platform for various metadata use cases.
- Pro: Easy to deploy, operate, and upgrade due to streamlined architecture.
- Pro: Supports a wide range of data sources with over 100 connectors.
- Pro: Designed for both technical and non-technical users to collaborate.
Weaknesses
- Con: Requires self-hosting for full control, which might need technical expertise.
- Con: Reliance on community support for the open-source version.
Key features
Stemma
Automated data catalog for modern data teams.
Strengths
- Pro: Reduces manual effort in data cataloging
- Pro: Improves data discoverability for data teams
- Pro: Enhances trust in data through lineage and governance
- Pro: Accelerates data-driven decision making
Weaknesses
- Con: No explicit free tier mentioned
- Con: Pricing details not publicly available
Key features
Plans and prices: OpenMetadata vs Stemma
| Tool | Plans and prices | Source |
|---|---|---|
| OpenMetadata |
| open-metadata.org read Sep 27, 2026 |
| Stemma | No plan prices on file | stemma.ai |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on OpenMetadata pricing and Stemma pricing.
Key Takeaways
OpenMetadata
- Has a free plan
Stemma
- Choose if you want automated data catalog for modern data teams
What the data shows
On the data below, OpenMetadata leads on a free plan. We do not name an overall winner for this pair.
- Only OpenMetadata has a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do OpenMetadata and Stemma compare in 2026?
On the data below, OpenMetadata leads on a free plan. We do not name an overall winner for this pair. Only OpenMetadata has a free plan.
What are OpenMetadata and Stemma used for?
OpenMetadata: The #1 open-source platform for unified data discovery, observability, and governance. Stemma: Automated data catalog for modern data teams.
What does OpenMetadata cost vs Stemma?
OpenMetadata is free. Stemma has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Sep 27, 2026.
What's the main difference between OpenMetadata and Stemma?
OpenMetadata's main strength: open-source with an active and growing community. Stemma's main strength: reduces manual effort in data cataloging.