Model Xtractor vs Schemity
Model Xtractor
data-xtractor.comSchemity
schemity.comSide by side
| Figure | Model Xtractor | Schemity |
|---|---|---|
| Price from | Free | $2.42/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Plans published | 1 | 8 |
| Spec score · Database Design Tools | 7.4 (#23) | 8.8 (#4) |
| Audience | The maker presents Model Xtractor as a tool to help users understand relational data models without needing to be an expert. | The maker describes Schemity as database design software for software engineers and says its creator uses it to design and maintain production schemas. |
| Database support | The maker lists support for SQLite, Firebird, Microsoft SQL Server CE, Access, MySQL, MariaDB, PostgreSQL, SQL Server, Oracle, IBM Db2, SAP ASE, SAP SQL Anywhere, Snowflake, Redshift, Azure, and Amazon Aurora. | The site lists PostgreSQL, Supabase, MySQL, MariaDB, SQL Server, and SQLite as supported databases. |
| Reverse engineering | It extracts information about database tables, views, columns, and relationships in a one-time reverse engineering operation. | The desktop app reverse-engineers live schemas and re-syncs them when diagrams open, preserving existing layout while showing database changes for review. |
| Security | The maker says Xtractor applications cannot modify remote database data or metadata, while model extensions are saved in the local user database. | The maker says the MCP server listens only on the user's machine, stores its token in the OS keychain, and does not give an AI agent database credentials. |
| Support | The maker describes products other than Data Xtractor as free, provided as-is, and without support. | The maker invites users to contact the creator directly about team purchase needs such as invoices, offline activation, security review, or volume licensing. |
Plans
Schemity
- EducationFree
- Education licenseFree
- Free trialFree
- LiteFree
- Schemity LiteFree
- Updates renewal$29 a year
- License$129, paid once
- Licensed desktop$129, paid once
In their own words
Model Xtractor
Model Xtractor has no write-up on Specifiction yet; its figures are above.
Schemity
Schemity is database design software that connects to live databases and previews proposed schema changes before they are applied. It lists PostgreSQL, Supabase, MySQL, MariaDB, SQL Server, and SQLite support. A migration displays its proposed changes and effects, and runs only when the user clicks Migrate. Design tools include ERD creation, inferred relationships, SQL and DBML import, check constraints, junction table generation, and schema linting across 26 problem classes. Its local MCP server offers 16 tools for Claude Code, Claude Desktop, Cursor, Codex, OpenCode, and other MCP hosts. The desktop app stores work in plain JSON files that can be version-controlled with Git. It has no cloud backend, accounts, analytics, or telemetry, but transmits an automatically generated machine ID and country code for license verification. A two-week desktop trial unlocks every feature without a credit card. After it ends, offline design remains available, while live database features and Context Views pause until a license is active. Lite is free; the License is $129 one-time.