CompactView is described as 'viewer for Microsoft® SQL Server® Compact Edition (SQLCE) database files (*.sdf). CompactView can open database files of versions 3.1, 3.5 and 4.0. CompactView need the following installed software to run it:'. There are four alternatives to CompactView for Windows and .NET Framework. The best alternative is LINQPad, which is free. Other great apps like CompactView are Database .NET (Free Personal), Microsoft SQL Server Compact (Free) and SQL Compact Query Analyzer (Free, Open Source).
LINQPad lets you interactively query SQL databases in a modern query language: LINQ. Kiss goodbye to SQL Management Studio! LINQPad supports everything in C# 3.0 and Framework 3.5: LINQ to Objects LINQ to SQL Entity Framework LINQ to XML (Even old-fashioned SQL!
Database .NET is an innovative, powerful and intuitive multiple database management tool. With it you can Browse objects, Design tables, Edit rows, Export data and run Queries with a consistent interface. A standalone tool that does not require installation.