Render It All is a Blender add-on for batch rendering, built to replace manually switching cameras and hitting render one at a time. Opening it from the Render menu brings up a dialog with a hierarchical tree showing Scene to Cameras, where you tick or untick whatever you want to render. A scene-level toggle lets you enable or disable all of a scene's cameras with a single click.
When the dialog opens, keyframe ranges are scanned automatically to detect animated cameras. Animated cameras are rendered as .mp4 using H.264 video and AAC audio, while static cameras are saved as .png. Files land in an export/ folder right next to your .blend, so there's no manual folder setup. If you add a camera mid-session, a Refresh button rescans without closing the dialog.
The add-on is non-destructive: original scene settings including camera, frame range, output path and codec are restored after each render. It requires Blender 4 or newer and works with the Cycles and Eevee render engines. Video output relies on FFmpeg codec support, which is included in all official Blender builds.