Pymss vs StemConsole

Pymss is an open-source music source-separation toolchain that runs on the user's own machine and separates audio into vocals, drums, bass, and other stems. Its Studio desktop workspace handles model management, batch jobs, and stem editing. Users can import files or folders, choose a downloaded model, configure inference, and queue work. Studio can browse, download, resume, and delete model files, with storage cleanup controls. Waveform previews, mix controls, saved projects, and stem export support work on the results. Pymss can chain models so each workflow step uses the preceding step's output. The inference package lists WAV, FLAC, MP3, M4A, AAC, Opus, Vorbis, and Ogg output. Other components include ComfyUI custom nodes, a VST3 ARA plugin for compatible DAWs, and a browser interface bundled with the server. The ARA plugin provides per-stem mute and solo controls; its README gives Reaper and Studio One as host examples. The repositories have separate licenses: Studio is listed under AGPL-3.0 and the inference package under MIT. Studio remains at an early development stage, and changes between versions may break things.

StemConsole is a browser-based tool for separating music recordings into stems, mixing the parts, and downloading the result. It accepts MP3, WAV, FLAC, OGG, M4A, AAC, and WMA files up to 200 MB. Vocal Remover separates vocals from the instrumental; Basic Split provides vocals, drums, bass, and other parts; Full Separation adds guitar and piano. In the mixer, users can solo, mute, and balance individual parts, loop a passage, and create a custom mix. Pro adds stem speed and key controls, named loops, count-in, tap tempo, WAV exports, and priority processing. Free accounts include 5 monthly splits; Pro includes 100 monthly splits, with terms describing a fair-use cap of up to 15 splits per day. Plans include Free, a Single credit for 1.99 USD once, Pro monthly at $6.99 a month, and Pro yearly at $49 a year. Sign-in is available through Google or an email link. The maker says uploads are not sold or used to train AI models; uploaded audio and generated stems are stored temporarily for up to about 90 days before automatic deletion.