REAPER

The application provides a full multitrack environment for recording, editing, processing, mixing and mastering audio and MIDI. It supports a wide range of hardware, digital file formats and plug‑in standards such as VST, VST3, LV2, AU, CLAP, DX and JS, and includes built‑in studio‑quality effects as well as tools for creating custom processing. Features include extensive audio and MIDI routing, multichannel support, 64‑bit internal processing, automation, grouping, VCA, surround, macros, OSC, scripting, control‑surface integration, and customizable skins and layouts.

It is intended for anyone needing a complete digital audio production suite, from professional studios and broadcast facilities to home users, educators, researchers, sound designers, and game developers. The software runs on macOS, can be installed on portable or network drives, and preserves preferences across updates, which are released frequently and free for the life of the license.

What distinguishes it is a reputation for stability and efficiency, with a single fully featured version that imposes no artificial limitations, extensive extensibility through scripting and third‑party extensions, and a DRM‑free licensing model that includes unlimited free updates up to version 8.99.