Bassline
Synthesizers
Monophonic bass synthesizer inspired by the 303, with a built-in step sequencer.

What is Bassline?
Monophonic bass synthesizer inspired by the 303, with a built-in step sequencer. Create squelchy, resonant basslines with Accent, Slide, and Groove for classic acid grooves.
Bassline is a synthesizer in Audiotool — the collaborative online DAW that runs entirely in your browser, with modular routing and a full device rack built in.
What you can do with Bassline
- Design your own sounds — basses, leads, pads, and textures.
- Play it live with a MIDI keyboard or program notes in the piano roll.
- Record a performance, then quantize, transpose, and edit it.
- Route it through Audiotool's effects and mixer in a modular signal chain.
- Start from a community preset or save your own.
Key capabilities
- Monophonic bass synthesizer inspired by the 303, with a built-in step sequencer.
- Create squelchy, resonant basslines with Accent, Slide, and Groove for classic acid grooves.
- Runs entirely in your browser — no download or install.
- Part of Audiotool's full studio — free, with no track or feature limits.
Make music with Bassline, right in your browser
Bassline is built into the Audiotool studio. Open it and start your next track in seconds.
Learn how to use Bassline
Step-by-step guides, parameter references, and tutorials live in the Audiotool manual.
Frequently asked questions
Is Bassline free to use?
Yes. Bassline is part of Audiotool's free, browser-based studio. There's no download or install, and there are no track or feature limits on the core DAW.
Do I need to install anything to use Bassline?
No. Audiotool runs entirely in your web browser, so you can open Bassline and start making music straight away — there's nothing to download or install.
How do I open Bassline in Audiotool?
Open the Audiotool studio in your browser, then add Bassline to your project from the device rack. You can also start from one of the community presets.
Can I play Bassline with a MIDI keyboard?
Yes. You can play Audiotool's instruments live with a MIDI keyboard, record your notes and automation, and edit them in the piano roll.
Where can I learn how to use Bassline?
Step-by-step guides, tutorials, and parameter references live in the Audiotool manual at www.audiotool.com/help.





