Stemelo vs Ultimate Vocal Remover

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.

Ultimate Vocal Remover is a free desktop application for separating audio sources and removing vocals from audio files. It uses deep neural network source-separation models and supports batch processing. Exports are available in WAV, FLAC, and MP3, with stem choices including vocals, instrumental, other, bass, drums, guitar, piano, synthesizer, strings, woodwinds, brass, and wind instruments. The project describes itself as fully open source and free to use and modify. Its GUI code uses the MIT license, while developers using the models are asked to credit UVR and its developers. UVR runs on Linux, macOS, and Windows. Windows installation targets Windows 10 or newer and requires the main C: drive. macOS downloads target Big Sur or newer and distinguish Apple Silicon from Intel. Linux instructions cover Debian- and Arch-based systems. FFmpeg handles non-WAV files, and Rubber Band supports time-stretch and pitch-shift tools.