How to Run a 24/7 OBS Stream Without Memory Leaks

Running a continuous, 24/7 broadcast using OBS Studio requires specific configurations to prevent memory degradation and application crashes over time. This guide provides a step-by-step walkthrough to optimize your media sources, streamline rendering settings, and implement stability practices that ensure your stream runs indefinitely without exhausting your system’s RAM.

Use VLC Video Source Instead of Media Source

The default OBS “Media Source” is prone to memory accumulation when looping videos for extended periods. To prevent this: 1. Install the 64-bit version of VLC Media Player on your system; this integrates the VLC Video Source option directly into OBS. 2. In OBS, add a new source and select VLC Video Source instead of Media Source. 3. Add your video file to the playlist, and ensure Loop is checked. VLC handles memory management and cache release much more efficiently over long cycles.

Disable the OBS Preview Window

Rendering the live preview inside the OBS interface constantly consumes GPU and RAM resources. * Right-click anywhere on the central OBS video preview screen and uncheck Enable Preview. * This reduces local resource consumption, allowing the program to run with a much smaller memory footprint.

Optimize Browser Source Settings

If your stream requires browser sources (like alerts or chat overlays), they can cause severe memory leaks over days of continuous operation. * Double-click your browser source and check the box for Refresh browser when scene becomes active. * In OBS Settings > Advanced, ensure Enable Browser Source Hardware Acceleration is checked, as this offloads the rendering process from the system RAM to your GPU. * Remove any inactive or unnecessary browser sources from your scenes entirely.

Force Regular Cache Clearing with a Scheduled Restart

Even with optimized settings, system-level memory fragmentation can occur over weeks of uninterrupted streaming. The safest way to guarantee long-term uptime without degradation is to schedule an automatic daily restart. * Use the Advanced Scene Switcher plugin (built into modern OBS versions) to schedule a stream stop, OBS restart, and stream start during your lowest-viewership hour of the day. * Alternatively, set up a simple Windows Batch script (.bat) paired with Task Scheduler to close and reopen OBS once every 24 or 48 hours. This completely flushes the RAM.

Adjust Output and Encoding Settings

Reduce encoding strain to prevent buffer overflows and memory bottlenecks: * Use hardware encoding (NVIDIA NVENC or AMD AMF) instead of software encoding (x264) to offload processing to the GPU. * Set your Process Priority to Above Normal in Settings > Advanced > General to prevent Windows from deprioritizing OBS memory allocation.