The archive · Developer & Business Tools · Product decision · 2026
StemDeck 2026: solo dev's free local stem splitter hits HN front page
Solo developer Thales Claro's free, open-source, on-device stem separator reached 3.6k GitHub stars after an HN front-page day.
StemDeck
What the business is
A free open-source desktop app that splits any audio track into vocals, drums, bass, guitar, piano and other stems locally, with a DAW-style mixer.
How it started
In 2026 solo developer Thales Claro wanted stems of songs so his kid could practice drums, but cloud tools like Moises and LALAL.AI demanded subscriptions and uploaded audio to third-party servers. He built StemDeck around Demucs htdemucs_6s and released v0.5.0 Alpha 1 on GitHub on 2026-05-18.
What happened
The tool spread by word of mouth through music communities: 2,000+ stars and 13,000+ downloads in roughly two months, coverage in Bedroom Producers Blog (2026-08-19) and Synthtopia (2026-08-27), then an HN front-page day on 2026-08-29. Updates added Linux builds, Docker support, a local-network remote mode, and WAV/MP3/MP4 export.
How it ended up
Still alpha and free as of 2026-09-02: no company, funding, or monetization yet. The bet is that mindshare from a genuinely local, private tool matters more than early revenue.
Background
StemDeck is a free, open-source desktop app that separates any audio track into six stems (vocals, drums, bass, guitar, piano, other) entirely on the user's machine. Built on Meta's Demucs htdemucs_6s model, it wraps separation in a DAW-style mixer with per-stem mute/solo/faders, waveform editing, BPM and key detection, and export.
Solo developer Thales Claro started it in 2026 because he wanted stems for his kid's drum practice without paying for a subscription or uploading music to someone else's server. The first alpha, v0.5.0, landed on GitHub on 2026-05-18 with no account, no quota, no uploads, and no subscription.
Traction built through word of mouth: Bedroom Producers Blog counted 2,000+ stars and 13,000+ downloads in roughly two months as of 2026-08-19, Synthtopia covered it on 2026-08-27, and the project reached the Hacker News front page on 2026-08-29 with 244 points and 65 comments. By 2026-09-02 the repository had 3.6k stars and 295 forks.
As of 2026-09-02 StemDeck remains alpha software with no company, funding, or monetization, deliberately positioned as a free, local alternative rather than a direct competitor to polished commercial cloud services.
What has to be true
- Musicians increasingly want stem separation but dislike subscriptions and uploading audio to cloud services.
- A single developer could package an open-source state-of-the-art model into a usable desktop product quickly.
- Word-of-mouth distribution in music communities was enough to reach a wide audience without paid marketing.
- The explicit free-for-forever, no-account promise created a sharp contrast with Moises and LALAL.AI.
- Being open source lowered trust barriers for technically savvy users concerned about data handling.
What can be applied
Packaging an open-source model into a genuinely private, subscription-free tool can win outsized attention by word of mouth, even against better-funded incumbents.
Aftermath
As of 2026-09-02 StemDeck is still in alpha, actively maintained on GitHub with releases, a Docker image on GHCR, Linux support added after the initial Mac/Windows launch, and a local-network mode that lets users control processing from another device. The developer has stated the project takes no money, sponsorship, or funding, and positions the tool as enough for personal study and practice while pointing users who need polish or mobile apps to commercial products.
Sources
- StemDeck is a FREE open-source local stem splitter
- StemDeck, a free, open-source and local AI stem separator
- Free, Open Source StemDeck Stem Separator For Linux, Mac & Windows
- stemdeckapp/stemdeck
spotted an error? The archive wants to know.
Your turn
You just read one. Describe what you are building, and see who is betting on the same thing.
Free account · 3 free questions · no card