Freedom251 › AI Stem Splitters
StemSplit
What StemSplit is
StemSplit separates songs into vocals, instrumentals, and other stems for karaoke, music production, and related audio work. Users can choose four-stem separation or a six-stem mode that also separates guitar and piano. Audio can be uploaded in formats including MP3, WAV, FLAC, M4A, OGG, WEBM, AAC, OPUS, AIFF, AIF, and WMA, up to 100 MB, or submitted through a YouTube or SoundCloud URL. Batch processing is supported, with MP3, WAV, and FLAC exports. StemSplit says most tracks finish in under a minute and advertises 95%+ separation accuracy. It is available on the web, through a Chrome extension, and via a REST API with webhooks; API access is included with its listed credit packages. Those one-time packages start at $2, paid once for 10 minutes, and credits never expire. The maker lists integrations and guides for GitHub Actions, MCP, n8n, Zapier, Make, Pipedream, Power Automate, and Discord. StemSplit identifies producers, DJs, karaoke enthusiasts, creators, podcasters, audio editors, educators, students, and developers among its audiences. Its privacy policy says data is encrypted in transit and at rest, original audio is deleted within 48 hours, and processed uploads remain downloadable for 14 days. The product is maintained by a solo developer.
Who it suits
StemSplit suits music producers, DJs, karaoke enthusiasts, and other listed audiences who need separated audio tracks. Developers can use its REST API and webhooks, while creators can submit audio files or supported video and music URLs.
What it does well
- Four-stem and six-stem separation modes
- Accepts uploads up to 100 MB and audio URLs
- Batch processing and three export formats
- API with webhooks included in credit packages
- Credits never expire
What to know first
- Uploads are limited to 100 MB
- Original uploaded audio is deleted within 48 hours
- Processed uploads remain downloadable for 14 days
Limits
The Starter plan is a one-time 2.00 USD purchase for 10 minutes of processing. Uploaded files have a 100 MB maximum; original audio is deleted within 48 hours and processed uploads are downloadable for 14 days.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Pro | 100 minutes · $0.12/minute · credits never expire · full API access | $12, paid once |
| Starter | 10 minutes · $0.20/minute · credits never expire · full API access | $2, paid once |
| Studio | 300 minutes · $0.10/minute · credits never expire · full API access | $30, paid once |
| Standard | 30 minutes · $0.17/minute · credits never expire · full API access | $5, paid once |
As stemsplit.io lists them, read 7 Oct 2026. The maker's own page has the final word.
Getting started
- Open https://stemsplit.io/.
- Choose the web service, Chrome extension, or API route.
- Select a one-time credit package, starting at 2.00 USD.
- Upload a supported audio file or submit a YouTube or SoundCloud URL.
- Choose the available stem separation mode and process the track.
Verdict
StemSplit offers several ways to submit songs and export separated audio, with API access included in its one-time credit packages. Check the upload size limit and retention periods if those affect your workflow.
Questions
How much does StemSplit cost?
The one-time plans are Starter at 2.00 USD for 10 minutes, Standard at 5.00 USD for 30 minutes, Pro at 12.00 USD for 100 minutes, and Studio at 30.00 USD for 300 minutes. Credits never expire, and API access is included.
Does StemSplit have a free plan or trial?
Yes. StemSplit lists both a free plan and a free trial.
What platforms does StemSplit support?
StemSplit is available as a web service, an extension, and an API. Its privacy policy describes a Chrome extension.
Which formats and inputs can I use?
You can upload MP3, WAV, FLAC, M4A, OGG, WEBM, AAC, OPUS, AIFF, AIF, and WMA files up to 100 MB, or submit YouTube and SoundCloud URLs.
What does StemSplit separate?
It offers four-stem separation and a six-stem mode that additionally separates guitar and piano. Listed stem types include vocals, instrumental, drums, bass, other, piano, and guitar.
Who makes StemSplit?
StemSplit says it is an indie product built and maintained by a solo developer. It directs users to its contact page for support.
Facts from StemSplit's own pages
- API
- A REST API with webhooks is available, and API access is included with the listed credit packages. · stemsplit.io, 7 Oct 2026
- Audio URLs
- Users can submit YouTube or SoundCloud URLs for processing. · stemsplit.io, 7 Oct 2026
- Extension
- The privacy policy describes a Chrome extension that sends a YouTube or SoundCloud URL and title to StemSplit only when the user clicks “Split Stems.” · stemsplit.io, 7 Oct 2026
- Headquarters
- Lahaina, Hawaii, United States · stemsplit.io, 28 Sept 2026
- Integrations
- The maker lists integrations and guides for GitHub Actions, MCP, n8n, Zapier, Make, Pipedream, Power Automate, and Discord. · stemsplit.io, 7 Oct 2026
- Intended users
- The maker identifies producers and DJs, karaoke enthusiasts, creators, podcasters, audio editors, educators, students, and developers as audiences. · stemsplit.io, 7 Oct 2026
- Maker background
- StemSplit says it is an indie product built and maintained by a solo developer. · stemsplit.io, 7 Oct 2026
- Performance
- The site states that most tracks finish in under a minute and advertises 95%+ separation accuracy. · stemsplit.io, 7 Oct 2026
- Pricing model
- StemSplit sells processing minutes as pay-as-you-go credits that do not expire, with no subscription required. · stemsplit.io, 7 Oct 2026
- Purpose
- StemSplit removes vocals and separates songs into stems for karaoke, instrumentals, and music production. · stemsplit.io, 7 Oct 2026
- Security and retention
- The privacy policy says data is encrypted in transit and at rest, original uploaded audio is deleted within 48 hours, and processed uploads remain downloadable for 14 days. · stemsplit.io, 7 Oct 2026
- Stem outputs
- It offers four-stem separation and a six-stem mode that additionally separates guitar and piano. · stemsplit.io, 7 Oct 2026
- Support
- The site directs users with questions to its contact page for support. · stemsplit.io, 7 Oct 2026
- Uploads
- The site accepts common audio formats including MP3, WAV, FLAC, M4A, OGG, WEBM, AAC, OPUS, AIFF, AIF, and WMA, with a 100 MB maximum file size. · stemsplit.io, 7 Oct 2026
Where StemSplit stands on Freedom251
- AI Stem Splitters#15 of 26
- Stem Separation Software#16 of 21