coder000

SQL → LINQ converter

The honest converter — common SELECT shapes become clean method-syntax LINQ, with every mapping explained. Everything else gets flagged for your judgment instead of mangled into wrong-looking C#.

Free API — use it from your own tools

The same engine powers an open API (this page uses it too). No signup, no key — just a rate limit of 60 requests per minute per IP. Handy for editor macros, code reviews, and teaching materials.

curl

curl -X POST https://www.coder000.com/api/v1/sql-to-linq \
  -H "Content-Type: application/json" \
  -d '{"input": "SELECT TOP 5 Name FROM Patients WHERE Age >= 18"}'

C#

using var http = new HttpClient();
var response = await http.PostAsJsonAsync(
    "https://www.coder000.com/api/v1/sql-to-linq",
    new { input = "SELECT Name FROM Patients WHERE Age >= 18" });
var result = await response.Content.ReadFromJsonAsync<JsonElement>();
Console.WriteLine(result.GetProperty("output").GetString());

Uniform response shape: { "output": "…", "notes": [...], "warnings": [...] } — each note carries a change, an explanation, and a link to the tutorial behind the mapping.

Learn the why, not just the what

The mappings this tool applies are exactly what these posts teach.

LINQ explained for beginners Collections & LINQ interview questions SQL & EF Core interview questions Sibling tool: T-SQL → PostgreSQL