Safely generate perfect connection URIs for PostgreSQL, MongoDB, MySQL, and Redis. No more guessing where the @ symbol goes.
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Every modern backend framework (like Prisma, Django, Rails, or Express) usually requires you to provide a single DATABASE_URL environment variable to connect to your database.
However, the syntax for these connection strings is notoriously easy to mess up. A single misplaced slash or an un-escaped special character in your password can result in hours of debugging "Authentication Failed" or "Invalid Hostname" errors.
Almost all database URIs follow a standard structure based on RFC 3986:
dialect://username:password@host:port/database?options
This tells the driver what protocol to use.
postgresql:// or postgres://mysql://mongodb:// or mongodb+srv:// (for cloud clusters)redis:// or rediss:// (for SSL)This is your username and password. If your password contains special characters like @ or /, you must URL-encode them. (Our tool does this automatically).
This is the IP address or domain name of your database server.
54323306270176379The specific logical database you are connecting to on that server.
Additional configuration flags passed to the driver. For example, ?sslmode=require ensures that the connection to the database is encrypted, which is often mandatory for cloud providers like Supabase or Heroku.
Simply select your database dialect from the dropdown, fill in your credentials, and the tool will instantly assemble the perfect, URL-encoded string. You can toggle the password visibility to ensure it is encoded correctly before copying it to your .env file.
A Database Connection URI (Uniform Resource Identifier) is a single string that contains all the information your application needs to connect to a database. It typically includes the database type, username, password, host, port, and the specific database name.
Yes. This tool runs entirely within your browser. The URI is generated locally using JavaScript, and no credentials are ever sent to a server or saved in our database.
If your password contains special characters like '@', '#', or '/', it will break the URI parsing logic unless it is strictly URL-encoded. For example, an '@' becomes '%40'. Our builder handles this encoding automatically.
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