If you want a web-based service with AI music tools geared for DJs and producers, Fadr is worth a look. It includes a variety of tools like a vocal remover, song splitter, key/tempo/chords detector, remix maker, mashup maker and a DJ controller. It's geared for live performances, where you can upload songs, pull out vocals, bass, drums and melodies, and create remixes and mashups. It also includes a SynthGPT tool to turn text into playable instruments. The service costs either Fadr Basic, which is free for life, and Fadr Plus, which includes premium features for $10/month or $100 per year.
Another good choice is RipX DAW, an AI music production tool that's good for advanced stem separation and editing. It lets you split mixed audio into stems and then edit each stem note by note, which is good for producers and DJs. The PRO version also includes stem clean-up abilities, audio repair modules and effects like Harmonic Editor and Audioshop tools, so it can be used for music production and audio post-production. You can try it with a 21-day free trial.
WavTool is another tool worth checking out, especially if you want a web-based tool. It includes features like a multi-modal music chatbot, MIDI continuation and variation tool, audio generator, stem separation and audio-to-MIDI converter. The app has a customizable panel-based UI and supports VST & AU plugins, so it's good for musicians of all skill levels. It costs three tiers: Basic (free), Indie ($10-$4/month), and Pro ($20/month).
If you're more interested in sample editing, Samplab is a great option. This AI-powered tool lets you edit and enhance audio samples by editing notes, drums and chords with MIDI file export. It also adjusts tempo and key for smooth sample blending and splits audio into instrumental stems. Samplab is available as a VST3 and AU plugin or desktop app and is available in free and premium versions.