Tool profile
Fadr: cost, fit and limits
Fadr is a browser-based music toolkit made by Pebble LLC that separates songs into stems, detects MIDI notes and builds remixes, with a free Basic tier and a paid Plus tier for producers and DJs.
What to know first
Fadr offers two tiers. Basic is free and returns stems for vocals, melodies, drums and bass as MP3 files, plus MIDI detection and a Remix Maker. Fadr Plus costs $10 per month or $100 per year and adds finer stems, WAV downloads, individual stem tracks, one-hour uploads, unlimited storage and API access. The Plus page also bundles two generative plugins, Siren and DrumGPT. No free trial is listed, only a money-back guarantee on the latest payment.
Fadr at a glance
| Maker | Pebble LLC, United States |
|---|---|
| Free plan | Yes |
| Entry price | Free; Plus $10 per month |
| API access | Yes |
| Category | Best AI Stem Separation Tools in 2026, rank 2 of 11 |
| Website | fadr.com |
Who Fadr is best for
Bedroom producers sampling songs
MIDI detection comes free, and Plus returns WAV files with individual stem tracks, which is what a sampler or DAW import needs for chopping.
Remixers new to production
The Remix Maker is built for people with no prior remix experience, and the free tier lets them try it before deciding whether WAV exports are worth $10.
Developers testing an API
API access is part of the $10 Plus plan, though the plan page gives no numeric cap for concurrent stems or API calls, so volume use needs a question to the vendor.
Fadr plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Fadr Basic | Free | Basic stems for vocals, melodies, drums and bass, MP3 downloads, MIDI detection and the Remix Maker; uploads appear limited to about 10 minutes. |
| Fadr Plus (monthly) | $10 per month | Finer stems, WAV downloads, individual stem tracks, one-hour uploads, concurrent stems, unlimited storage, API access and the Siren and DrumGPT plugins. |
| Fadr Plus (annual) | $100 per year | The same inclusions as the monthly Plus plan, paid yearly; a money-back guarantee refunds the most recent payment, though extensive use may void it. |
Checked November 2026.
What Fadr does
- Sixteen-part separation
- Plus extracts vocals and 15 other instruments, including lead and background vocals, piano, and electric and acoustic guitar, which gives finer parts than the four-part split on the free tier.
- MIDI detection
- Basic includes MIDI detection, so melodies pulled from a track can be turned into notes for a synth or sampler without extra tools or paid software.
- Siren and DrumGPT plugins
- Siren creates playable instruments from written descriptions and DrumGPT creates playable drum kits from words, both listed with Plus and separate from the separation engine.
- Remix Maker
- The Remix Maker rearranges and remixes songs for users who have no production background, and it sits in the free Basic tier next to the stem tools.
- Longer uploads
- Plus raises the upload length to one hour, where the page describes the limit it replaces as 10 minutes, which matters for DJ mixes and live recordings.
How Fadr handles your data
The privacy policy at fadr.com/privacy does not say whether uploaded audio is used to train models. Personal data is kept only as long as necessary, with no period given, and processing takes place at the company's operating offices and other locations without a named region. The pages we opened list no certifications. Pebble LLC is the maker and the pages point to the United States. Anyone uploading unreleased tracks should ask the vendor for its retention and training position first.
Where Fadr falls short in practice
- No trial of Plus. The pricing page lists no free trial. A money-back guarantee exists, but the terms say refunds may be refused when Plus has been used extensively, so testing heavily before asking is risky.
- Free tier is MP3 only. Basic returns four stem types as MP3. WAV downloads, individual stem tracks and the finer instrument list all require Plus, so the free tier suits listening and rough sketching only.
- Caps are not numbers. The Plus page gives no numeric cap for concurrent stems or API access, so a team planning batch jobs cannot size the plan from public pages.
Works with
Alternatives to Fadr
Fadr: common questions
How much does Fadr Plus cost and what does it add?
Fadr Plus costs $10 per month or $100 per year. It adds finer stems, WAV downloads, individual stem tracks, one-hour uploads, concurrent stems, unlimited storage, API access and the Siren and DrumGPT plugins. The free Basic tier stays at four stem types and MP3 downloads.
Can Fadr export WAV stems for free?
No. Fadr Basic gives MP3 downloads. WAV downloads are listed with Fadr Plus at $10 per month. If you only need to listen, practice or sketch with a rough stem, the free MP3 output is enough, but sampling and mixing work usually benefits from the WAV files.
Does Fadr have an API?
Yes, API access is listed as a Plus feature. The Plus page gives no numeric cap for calls or concurrent stems, and no separate API pricing was found on the pages we opened. A developer planning volume should confirm the limits with the vendor before building.
What are Fadr's Siren and DrumGPT plugins?
Siren creates playable instruments from words, and DrumGPT creates playable drum kits from words. Both are listed under Fadr Plus. They are generative tools that sit beside the stem separation, so they do not change how songs are split, but they come with the same $10 monthly plan.
Does Fadr offer a free trial or refund?
There is no free trial listed. A money-back guarantee refunds the most recent payment, but the terms say a refund may be refused if Plus has been used extensively. The free Basic tier is the way to test the product before paying for Plus.