AudioStem.ai

AudioStem.ai is a web-based AI song maker, stem splitter and browser mixer for musicians, producers, teachers and creators. It suits people who want generation, arrangement and analysis in one workflow rather than a single-purpose separator. The main trade-off is that useful exports, model breadth and storage longevity are reserved for paid tiers.

Overview

AudioStem.ai handles uploaded MP3, WAV, M4A, FLAC, OGG and other common formats, with tracks up to 90 minutes. Its separation models can produce four or six stems, or target vocals, guitar, piano, karaoke and drum-kit parts such as kick, snare and cymbals. That range is practical for remixing, practice tracks and editing isolated performances. AI-generated songs can run up to five minutes, and Pro or Studio returns two versions for one charge, making those tiers more useful for ideation than the free account.

Uploads are used only to produce stems, according to the service, and are not used to train or improve models or sold or shared with model vendors. That is a meaningful privacy position for unreleased recordings. Retention still matters: free tracks are cleared after 24 hours, while paid plans keep stems for 30 to 365 days.

Key features

Browser mixing

The studio keeps stems synchronized and provides A/B loops, per-stem volume, mute and solo, a 10-band equalizer, effects and custom mixes. This is enough for focused balancing and auditioning without a desktop workstation. Pro and Studio add custom-mix and lossless WAV exports; every plan can download MP3, but Free cannot download at all.

Generation, analysis and practice

Pro and Studio support YouTube-link input and AI song generation. Pro adds BPM, musical-key and chord detection, useful when preparing a performance or matching a remix to a set. Studio adds a metronome, key control and pitch-preserving speed control, better suited to teaching and deliberate practice. Pro and Studio also export MIDI, while Studio adds cleanup, loudness tools, four mastering styles and priority processing.

Pricing

Starter is inexpensive but retains only two models and gives up WAV, MIDI, AI songs, YouTube input and sharing. Pro is the pivotal tier for serious remix work; Studio costs $4 more monthly for double the audio minutes, much more storage and a year of retention, plus mastering-oriented tools.

Platforms

AudioStem.ai runs on the web. A Support page is linked for assistance.

Who it's for

Musicians and singers can extract accompaniment, inspect key and chords, and slow material without changing pitch on Studio. Producers and remixers benefit from synchronized editing, broad separation models and export choices on Pro or Studio. Teachers gain practice controls and durable Studio storage. Creators and audio editors can process long source files, but Free is unsuitable when files must be downloaded or preserved.

Pros and cons

• Pro: One browser workflow covers separation, mixing, analysis, generation and exports.
• Pro: 90-minute uploads accommodate full recordings rather than short clips.
• Pro: Audio is not used for model training or shared with model vendors.
• Con: Free files disappear after 24 hours and cannot be downloaded or shared.
• Con: Starter remains limited to two models and MP3 output.
• Con: Song generation is capped at five minutes and requires Pro or Studio.

Alternatives

Choose Fadr instead if you want a freemium service spanning web, desktop, iOS and API, with free vocals, melodies, drums and bass separation, MP3 downloads, MIDI detection and a Remix Maker.

StemForge is the better choice for open-source, local processing with no subscriptions or per-track fees, including Linux, macOS, Windows and self-hosting.

Pick AceStep AI Music Remixer for credit-based remixing, including a $7 one-time 50-credit package whose credits never expire.

AetherWave Music Studio offers another freemium web and API studio with stations, bands and gallery storage.

Consider AI Remix Music Generator for a credit-based web workflow with sign-up credits and monthly credit plans.

Audjust AI Music Remixer is an alternative freemium web remixer with a free trial.

MeloLab AI Remix suits users wanting lifetime-credit options and short-term song storage.

Mubert AI Music Remixer is another freemium web option with monthly credits and personal-use limits.

Browse the AI Music Remixing Tools, Stem Separation Software and AI Stem Splitters lists for broader comparisons.

Verdict

Choose AudioStem.ai if you want stem separation, browser mixing, song generation and musical analysis in one web application, with Pro offering the strongest balance of capability and cost. Look elsewhere if you need local open-source processing, broad device support or a free tier that preserves downloadable projects.