CastorDoc vs Metaplane
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both CastorDoc and Metaplane are credible data governance tools, and the right pick comes down to your priorities.
CastorDoc — Data catalog and governance.
Choose Metaplane if you'd rather have a lower starting price (free), a free plan to start on and a higher overall rating (4.7/5). Data observability, fast to deploy.
CastorDoc vs Metaplane: side by side
| Dimension | CastorDoc | Metaplane |
|---|---|---|
| Starting price | Custom | FreeWinner |
| Free plan | No | YesWinner |
| Pricing model | Subscription | Freemium |
| Best for | Data Teams | Data Teams, Smb |
| Platforms | Web, Api | Web, Api |
| Rating | 4.5/5 | 4.7/5Winner |
CastorDoc key facts
- Vendor
- Castor
- Pricing
- Subscription — Custom
- Free tier
- No
- Platforms
- Web, Api
- Best for
- Data Teams
- Editor rating
- 4.5 / 5
- Founded
- 2019
- Headquarters
- Paris, France
Metaplane key facts
- Vendor
- Metaplane
- Pricing
- Freemium — Free
- Free tier
- Yes
- Platforms
- Web, Api
- Best for
- Data Teams, Smb
- Editor rating
- 4.7 / 5
- Founded
- 2020
- Headquarters
- Boston, MA, USA
Frequently asked questions
Is CastorDoc better than Metaplane?
Neither is universally better — Metaplane edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is CastorDoc or Metaplane cheaper?
Metaplane is the more affordable of the two to get started, at free. CastorDoc starts at custom; Metaplane starts at free.
Can CastorDoc replace Metaplane?
Yes for most teams — both are data governance tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.