SQLite, PostgreSQL, and MySQL
Create and test saved connections for SQLite, PostgreSQL, and MySQL or compatible MariaDB servers.
Database Explorer
Unfour includes a local database explorer for inspecting schemas and data, editing supported records, and running SQL as part of backend troubleshooting.
It is built for developers who need to verify database state behind an API symptom or server-side error without moving the investigation into a separate database tool.
Read the docsThe current database workspace supports saved connections and active drivers for SQLite, PostgreSQL, and MySQL-compatible databases.
Create and test saved connections for SQLite, PostgreSQL, and MySQL or compatible MariaDB servers.
Browse catalogs, schemas, tables, columns, keys, indexes, and other available structure details.
Open supported tables, page through rows, and use server-backed filtering and sorting.
Stage and apply supported insert, update, and delete changes with review before execution.
Run a current statement, selection, or multi-statement batch and inspect each result in the query workspace.
Expose saved connections, schema reads, read-only queries, explain output, and policy-controlled execution to MCP clients.
Evidence chain
Move from a visible API problem through server evidence to the persisted state that confirms or challenges the working theory.
Database boundary
Unfour does not claim support for every database engine, autonomous schema changes, or automatically safe production SQL.
Saved database credentials remain local by default.
Supported writes are reviewed and explicitly initiated.
Mutating or high-risk MCP actions are controlled by workspace policy and confirmation checks.
The developer remains responsible for the target environment and the SQL that runs.
Capture the request and response that exposed the data problem.
Explore API ClientInspect logs and runtime state before changing persisted data.
Explore SSH TerminalLet an AI agent gather database evidence through approved tools.
Explore MCP IntegrationDownload Unfour to inspect supported databases in the local workspace.