Simple Runtime Window Editor (SRWE) is described as 'program that allows you to pick a running application and manipulate size, position, styles of its main/child windows. SRWE was built to maintain games that run in Windowed-mode'. There are four alternatives to Simple Runtime Window Editor (SRWE) for Windows and Steam. The best alternative is Borderless Gaming, which is both free and Open Source. Other great apps like Simple Runtime Window Editor (SRWE) are ShiftWindow (Free), Windowed Borderless Gaming (Free) and Magic Borderless (Paid).
Borderless Gaming forces borderless-fullscreen mode in any game. Stream at any resolution while still being able to easily alt-tab out as if you were in windowed mode. No more risk of crashing in badly optimized games when you want to switch songs or check your email.
Magic Borderless auto detects any games & applies your preferences. It also includes mouse locks, multi-monitor & widescreen goodies, volume manager, multitasking assistance, and privacy features like Ninja Mode.