Yes. Dsn is a free tool from knaxly.dev with no account required.

Are my credentials uploaded anywhere?

No. Dsn runs entirely in your browser. Hosts, usernames and passwords never leave your device and are never sent to a server.

Which databases are supported?

PostgreSQL, MySQL and MariaDB, MongoDB (including mongodb+srv and replica sets), Redis, and JDBC URLs for Postgres, MySQL and SQL Server.

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Dsn

Build and parse database connection strings, both directions, entirely in your browser. PostgreSQL, MySQL / MariaDB, MongoDB, Redis and JDBC, with the right SSL / TLS options per engine.

Build

Fill the fields; the connection string updates live below.

Host

Port

Database

User

Password

Scheme

SSL mode

Require SSL (adds ?ssl=true)

Use mongodb+srv:// (DNS seedlist, no port)

TLS (tls=true)

Replica set

TLS (rediss://)

JDBC driver

Require SSL / encrypt

Extra query parameters

Private. Everything runs in your browser; nothing is uploaded. Share links include the host, port and options but never the password.

Parse

Paste any connection string; it is split into fields and loaded into the form above.

Connection string