Connection string builder for SQL Server and PostgreSQL

Generate a provider-specific connection string and the matching ASP.NET configuration and EF Core registration.

Quick answer: DeveloperHA's connection string builder supports SQL Server and PostgreSQL, quotes semicolons in passwords, and produces appsettings.json plus AddDbContext wiring for modern .NET applications.

Runs privately in your browser

SQL Server and PostgreSQL Connection String Builder

Generate a provider-specific connection string and the matching ASP.NET configuration and EF Core registration.

Connection string

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appsettings.json + Program.cs

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How to use this tool

Step 1Choose SQL Server or PostgreSQL and enter the host, database and credentials.

Step 2Enable only the provider options your deployment needs.

Step 3Move the generated password into user-secrets or an environment variable before committing configuration.

Why this is useful for .NET teams

DeveloperHA provides remote / worldwide support from a senior software engineer with 15+ years of experience across enterprise software, healthcare, finance, e-commerce and business automation, with a focus on .NET backend architecture, distributed systems, AWS, Kubernetes and platform modernization. This tool is designed to shorten the path from a development problem to a clear, reviewable implementation.

Frequently asked questions

Are my credentials uploaded?

No. The builder runs in your browser. Do not use production credentials in a browser form anyway.

Does it generate EF Core code?

Yes. It generates an appsettings-style connection string and provider-specific AddDbContext wiring.

What happens if my password contains a semicolon?

The SQL Server builder quotes it so the semicolon is not interpreted as the end of a connection-string setting.

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Need help beyond the tool?

Bring the problem to a senior .NET engineer through a fixed-price audit, MVP sprint or ongoing partnership.

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