LALAL.AI is the most feature-rich option in the category.
Its current page advertises ten stem types (including electric guitar, piano, synth, strings, and wind instruments), echo and reverb removal, voice cleaner, and a pay-as-you-go top-up alongside the Lite and Pro subscriptions.
The starter free plan is preview-only with a 200 MB upload cap, which the SERP and PAA both reflect — Is there a free plan for LALAL.AI Vocal Remover? and Is there a pay-as-you-go option? are top FAQ questions on LALAL.AI's own page.
It is a strong fit when you need many stem types, voice cleanup, and lead/back vocal separation in one product.
Moises ("The Creative Suite for Musicians") positions wider — chord finder, speed changer, lyric transcription, AI Studio, Voice Studio, and stem separation in one app, with a free tier capped to a small monthly upload allowance and a paid plan for the rest.
Apple has named it iPad App of the Year and it advertises 70 million users; it fits practicing musicians, vocalists, and educators more than a producer who only wants stems.
PhonicMind is a long-running niche player ("online AI stem splitting since 2016") that emphasizes a free preview without signup and a small set of clean stems.
Sesh.fm is a free browser splitter built into a collaborative DAW, useful when collaboration matters more than stem granularity. vocalremover.org is widely recommended in Reddit threads as a genuinely-free karaoke-style vocal remover for one-off uses, though its product surface is narrower than the paid options above.
The right pick depends on the scenario you walked in with — see the next section for a scenario-to-tool map.