Stem Supply: Stem Splitter for YouTube, Slowed and Reverb, Nightcore
Overview
Mute vocals, drums or music on YouTube. See any song's BPM and change its tempo. Slowed + Reverb, Nightcore. Free, on-device AI.
Mute the singer. Mute the drummer. Find the BPM and play any song at the tempo you want. Slow it down and drench it in reverb. Nightcore it. Stem Supply puts one bar under every YouTube video: - MUTE VOCALS: instant karaoke, sing the lead yourself - MUTE DRUMS: drumless practice tracks from any song - MUTE MUSIC: bring the vocals forward, learn the arrangement - TEMPO FINDER: see the song's BPM in seconds, type the tempo you want, and it plays at that BPM in the same key - SLOWED + REVERB: one click, the classic slowed sound with a real convolution reverb - NIGHTCORE: one click, sped up and pitched up - CUSTOM: speed from 0.5x to 1.5x, pitch, and reverb sliders The mutes work at normal speed. Changing the tempo or speed pauses them until you go back to the original. WHY PEOPLE PICK STEM SUPPLY - 100% free. No credits, no trial, no account, no sign-in. Ever. - 100% on your device. The AI runs in your browser (WebGPU). Your audio is never saved or uploaded. We collect no data. - Honest about how it works. The AI has to hear a song once before it can mute it. The first time, it fast-loads the song in about half its length, then restarts it with your mutes. After that, replays and rewinds are muted right away. - Built by a real audio company. Same engine family as Xport Studio, our offline desktop app for stems, AI vocals, and mastering. PERFECT FOR - Singers: karaoke any song on YouTube - Drummers: mute the kit, play with the band - Guitarists and bassists: mute the mix, keep your part audible - DJs and producers: find the BPM of any track, hear how records are built - Practice: slow a song down to a tempo you can keep up with - Slowed + reverb and nightcore fans: every song, your vibe, one click - Language learners and transcribers: isolate the voice WANT THE ACTUAL STEM FILES? The extension is play-only inside YouTube. To split YOUR OWN tracks into downloadable stem files (vocals, drums, bass, music as separate WAVs), get Xport Studio free at xportstudio.com. GPU-fast, batch capable, same privacy promise. PRIVACY Stem Supply processes tab audio locally with the Web Audio API and an on-device AI model. It does not collect, store, or transmit any user data or audio. It only runs on youtube.com.
Details
- Version0.4.16
- UpdatedOctober 19, 2026
- Size6.24MiB
- LanguagesEnglish
- DeveloperWebsite
Email
gabeshaddow@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site