mori
mori: A self-hosted proxy for realistic local database and migration testing. Ranked #22 of 28 in Database Testing Tools by our editors (6.6/10); pricing: Open source; best for production-like local migration testing.
At a glance
- Editor score6.6 / 10
- PricingOpen source
- Best forProduction-like local migration testing
- Paid fromFree
- Schema migration testsYes
- Facts checked21 Sep 2026
Where it wins
- Copy-on-write isolation protects production while preserving realistic data.
- Tracks schema divergence and tests migrations across multiple database engines.
- Connects with major database services, cloud providers, and tunneling tools.
Where it doesn't
- Requires self-hosted deployment rather than a hosted plan-based service.
- Its command-line and terminal workflow may not suit teams seeking a web UI.
- It focuses on proxy-based database testing, not a general-purpose test suite.
Our verdict on mori
mori is an open-source, self-hosted transparent database proxy for developers testing application changes against production data. It routes reads to production while capturing writes in a local shadow database, then merges the results so local testing can reflect realistic data without modifying production. The product supports PostgreSQL, CockroachDB, MySQL, MariaDB, Microsoft SQL Server, SQLite, DuckDB, Redis, and Firestore. Its strongest fit is for engineering teams that need production-like local migration testing and want database state isolation as part of the development workflow.
Its standout capability is the copy-on-write model. Local changes stay in shadow databases, while merged reads combine production data with those changes. Schema divergence tracking and migration testing help developers inspect how database changes behave before they affect production. Query inspection, change visibility, reset and reinitialize controls, and a terminal dashboard with query-routing and latency metrics add visibility during the testing process. An optional Model Context Protocol server also supports AI-agent integration. For teams working across different infrastructure, mori lists connectivity with AWS RDS, GCP Cloud SQL, Supabase, Neon, PlanetScale, Vercel Postgres, MongoDB Atlas, DigitalOcean, Railway, Upstash, Cloudflare, Firebase, and Azure, alongside SSH, GCP Cloud SQL Proxy, and AWS SSM tunneling.
The trade-off is its focused operating model: mori is a command-line proxy distributed as open-source software, with self-hosted test execution rather than a hosted service with plan tiers. That makes it a focused choice for teams comfortable managing local infrastructure and database connectivity. Teams seeking production-like data isolation, migration checks, and query-level visibility should consider it. Teams looking for a broader test suite or a hosted, plan-based database testing product should choose an alternative aligned with those needs.
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mori pricing
mori fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Database support | PostgreSQL, CockroachDB, MySQL, MariaDB, Microsoft SQL Server, SQLite, DuckDB, Redis, Firestore |
| Schema migration tests | Yes |
| Stored procedure tests | Not verified |
| Data quality checks | Not verified |
| Test execution | Self_hosted |
| Test language | Not verified |
| Deployment | Self-hosted |
| Support | |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 13 integrations: AWS RDS, GCP Cloud SQL, Supabase, Neon, PlanetScale, Vercel Postgres … |
| Pricing | Open source |
| Website | moridb.sh |
| Facts checked | 21 Sep 2026 |
mori integrations
mori lists 13 integrations on its own site.
- AWS RDS
- GCP Cloud SQL
- Supabase
- Neon
- PlanetScale
- Vercel Postgres
- MongoDB Atlas
- DigitalOcean
- Railway
- Upstash
- Cloudflare
- Firebase
- Azure
Alternatives to mori
- DatafoldA broad database testing platform for migration validation, CI/CD, and data quality monitoring.9.3
- Great ExpectationsA flexible choice for repeatable database and pipeline validation.9.1
- SodaA broad testing and observability platform for teams managing data contracts.8.9
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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