Universal Key-Value Store for .NET 8, MAUI, and Blazor.

A truly universal persistence library for the .NET ecosystem. Whether you are building a cross-platform mobile app with MAUI, a web app with Blazor WASM, or a microservice, PolyKV works everywhere.

One API, Everywhere. This library is part of the PolyKV ecosystem. Use the same consistent API across 12+ languages.

• 👾 MAUI Ready First-class support for Android, iOS, macOS, and Windows targets via MAUI.

• 🌐 Blazor Compatible Running in the browser? PolyKV transparently bridges to localStorage via JS Interop.

• ⚡️ JSON Core Uses System.Text.Json for high-performance, allocation-free serialization.

dotnet add package PolyKV

using PolyKV;

public class Program
{
    public static void Main(string[] args)
    {
        // Init
        var kv = new PolyKV("MySuperApp");

        // 1. Save
        kv.SetString("language", "en-US");
        kv.SetNumber("retries", 3);

        // 2. Read
        string lang = kv.GetString("language");
        Console.WriteLine($"Lang: {lang}");

        // 3. Update
        kv.SetNumber("retries", 5);

        // 4. Delete
        kv.Remove("language");

        // 5. Clear All
        kv.Clear();
    }
}

• Mobile: Uses Context.FilesDir (Android) and NSUserDefaults (iOS).
• Desktop: Uses %APPDATA% (Windows) and ~/.config (Mac/Linux).

✅ Runtime Verified: Full CRUD operations verified via automated tests on actual devices/simulators.

MIT