MusiCraft Stem Splitter vs UnMixLabs

MusiCraft Stem Splitter is a browser-based tool for separating audio into stems. Its 66 separation modes cover vocals, drums, bass, instruments, choir and sound effects, with options including vocal-and-instrumental, 4-stem, 6-stem and full-band splits. The listed stem types also include guitar, piano, strings, brass, woodwind, saxophone, speech, music and other instruments. Users can upload MP3, WAV, M4A or FLAC files, or select a track from My Music. The in-browser player lets them preview stems and solo or mute them before downloading. Stem splitter mode pages limit uploads to 100 MB and eight minutes. The Free plan includes two editing runs per month and preview playback, but downloads are locked. Paid plans start at $7.49/mo. In Speech / Music / SFX mode, processing costs five credits per minute and output is 320 kbps MP3; 16-bit WAV is available on Studio and Business. The privacy page says uploaded audio is processed securely, not shared with third parties, and stems are deleted after download. The privacy policy also says uploads and generated content may be processed by AI, storage and infrastructure providers.

UnMixLabs is a web service and API that separates finished audio into vocal and instrumental stems. It accepts MP3, WAV, FLAC, M4A, OGG, MP4, and MKV files, with 4-stem, 6-stem, 53-stem, and vocal-isolation modes. Stem types include vocals, drums, bass, guitar, piano, other instruments, and instrumental. Each job includes BPM, musical-key, and chord-progression analysis. Optional processing offers vocal dereverb, stem-to-MIDI, beat-grid export, synced lyrics, karaoke video, and audio cleanup presets. Outputs can include WAV, MP3, FLAC, MIDI, beat-grid TSV, REAPER sessions, lyric SRT files, and karaoke MP4s. Batch processing is available, and Studio lists API access. The Free plan costs nothing, allows 10 processing minutes monthly, one 100 MB file at a time, 4-stem splits, and 24-hour retention. Pro is $10.99 a month; Studio is $24.99 a month. The pricing page says service is free-only during beta.