Sleep Timer Music app STPlayer

STPlayer is a lightweight Chrome extension that lets you fall asleep to music with a sleep timer and background playback. Its focus is a simple, tap-first interface—set your stop time with a couple of taps and let it run in the background while you relax or work.

Key features include a handy widget for quick access, background playback so music continues while you browse, and a Smart Shuffle that automatically selects 100 songs. Derived from ETMusic, STPlayer emphasizes minimal gestures and straightforward controls, making it ideal as a free music app for focus or bedtime listening.