Stemelo vs StemRoller

Stemelo is a web-based AI audio stem studio for musicians, producers, and creators. It separates songs into stems, extracts vocals, creates instrumentals, and prepares practice tracks directly in a browser, without installing audio software. Tools include an instrumental maker, drum remover, acapella extractor, stem splitter, vocal remover, karaoke maker, bass remover, and drumless-track maker. Uploads support MP3 or WAV files up to 50 MB. Guests can process tracks up to five minutes, while signed-in users can submit tracks up to 15 minutes. Guest access provides three processing attempts and 60-second previews without downloads. A free account adds three attempts and one full export shared across tools. Pro plans add full-length MP3 exports and private project history. Pro Monthly costs $9.90 a month with 300 processing minutes; Pro Annual costs $58.80 a year with 3,600 minutes. Failed or canceled paid jobs restore reserved minutes.

StemRoller is a free desktop application for turning songs into karaoke, vocal, and instrumental material. Search by song title and it finds results online through YouTube search integration. Using the Demucs machine-learning project, StemRoller separates a song into four outputs: vocals, drums, bass, and everything else. It also mixes the non-vocal stems into an instrumental track. Splitting takes several minutes, and batch processing is not available. The maker describes StemRoller as open source, with the README offering either the Unlicense or MIT No Attribution license. The homepage links to a macOS ZIP and a Windows CUDA executable, version 3.1.1. Linux is not officially supported, although the README provides manual dependency setup instructions. The Free plan costs nothing and includes four stem outputs plus an instrumental track. Questions and issues can be taken to Discord.