Question: Can you suggest a browser-based DAW that integrates with VST and AU plugins for more power?

If you're looking for a browser-based DAW that uses VST and AU plugins, WavTool is a good choice. It comes with a range of features, including a multi-modal music chatbot, MIDI continuation and variation tool, audio generator, stem separation, and audio-to-MIDI converter. WavTool supports VST & AU plugins and has a panel-based interface that you can customize. It also has cloud saving with automatic project backup and comes in three pricing tiers depending on how much functionality you need and how much you want to spend.

Another good browser-based DAW is Databass AI. The tool has a range of features, including Text-to-Audio, Audio-to-Audio, Stem Splitter and Lyrics Assistant. You can edit audio files, split them into stems, generate and assist with lyrics, and amplify vocal elements. Databass AI has tiered pricing, so you can use it at different levels of sophistication.

If you want to edit polyphonic audio samples, Samplab is a good option. It lets you edit and enhance audio samples, edit notes and drums, detect and edit chords, and automatically adjust tempo and key. Samplab is available as a VST3 and AU plugin or as a desktop app that works with DAWs, and it's updated regularly with no extra cost.

Fadr is another general-purpose web-based tool that includes a range of AI-powered music tools, including vocal remover, song splitter, key/tempo/chords detector, remix maker, mashup maker and DJ controller. It can extract stems and has a SynthGPT feature to generate playable instruments from text prompts. Fadr offers both free and paid tiers depending on how much you want to use it.