Question 1

What is EF Core SQL Converter?

Accepted Answer

EF Core SQL Converter is a free browser-based tool that takes Entity Framework Core (EF Core) log output — which contains parameterized SQL and a Parameters=[...] block — and produces clean, executable SQL with all parameter values substituted inline.

Question 2

How do I use EF Core SQL Converter?

Accepted Answer

Copy the log lines from your EF Core output (including the [Parameters=...] line and the SQL query), paste them into the left panel, then press Ctrl+Enter or click Convert. The resolved, formatted SQL appears on the right.

Question 3

Does it support multiple queries at once?

Accepted Answer

Yes. You can paste an entire EF Core log block containing many Executed DbCommand entries. Each query is parsed, resolved and formatted individually.

Question 4

Which SQL dialects are supported?

Accepted Answer

The tool natively handles PostgreSQL output from EF Core. It can also convert the SQL to MSSQL (SQL Server) syntax — translating double-quoted identifiers to brackets, LIMIT to TOP, and :: casts to CAST() — or to MySQL syntax with backtick identifiers.

Question 5

Is my data sent to a server?

Accepted Answer

No. Everything runs entirely in your browser. No log data, SQL, or parameters ever leave your machine.