About .NET Code Tips

Why a toolbox?

Some tasks come round every few weeks: turning an API's JSON into C# types, remembering which of the six NCRONTAB fields is the hour, finding the IANA name for "Eastern Standard Time", checking why a bearer token is rejected. Each tool here does one of those jobs, shows the C# behind it, and links to the official documentation.

Your data stays on your machine

Every tool runs as JavaScript in your browser tab. There is no backend, no account and no upload: the JWT you decode, the connection string you parse and the CSV you preview are never sent anywhere. You can disconnect from the network after the page loads and everything keeps working. The only third-party request is Google Analytics, which records which pages and buttons are used — never what you type or paste.

Where did the old tips go?

From 2016 the site published short articles on ASP.NET MVC 5, Entity Framework 6 and .NET Framework. Most of those APIs have been replaced in modern .NET, so instead of leaving outdated advice online, the most useful topics were folded into the tools that replaced them — for example HttpClient JSON calls on the JSON to C# page and SqlBulkCopy on the CSV viewer. Every old /Tip/… link redirects to its closest replacement.

Accuracy

The tools follow the behavior of the .NET libraries they mirror — NCrontab for timer schedules, the Unicode CLDR mapping that TimeZoneInfo uses, System.Guid's formats, DbConnectionStringBuilder's quoting rules — and each is covered by unit tests. If you find a case where a result differs from what .NET does, that's a bug worth reporting.