Browser-Based Instruments
Pro-grade virtual instruments and effects, all running in your browser. No plugins to install, no compatibility issues. Just open and play.
Analog Synth Interface
Features
Classic subtractive synthesis with rich oscillators, filters, and modulation. From warm pads to screaming leads.
Complex timbres through frequency modulation. Create bells, basses, and everything in between.
Modern sound design with morphing waveforms. Perfect for evolving pads and cutting-edge sounds.
Load and manipulate any audio. Chop, stretch, layer, and transform your samples.
Classic 808s and 909s to modern percussion. Layer, tune, and shape your drums.
Warm keys from Rhodes to Wurlitzer. Authentic tone with modern flexibility.
Wavetable Editor
Effects Rack
Capabilities
Use Cases
Deep synthesis engines for creating unique sounds from scratch.
Production-ready presets and quick workflow for finishing tracks.
Low-latency instruments that respond instantly to your playing.
Full Instrument View
FAQ
Yes, all instruments use the Web Audio API for real-time synthesis. Latency is typically under 10ms on modern systems, suitable for live playing.
Absolutely. Sesh supports Web MIDI, so any class-compliant MIDI controller works directly in your browser. No drivers needed.
Modern Web Audio is surprisingly capable. While some niche plugin features may not be replicated, our instruments cover 95% of production needs with great sound quality.
Yes, each instrument comes with hundreds of professionally designed presets. You can also save your own presets and share them with collaborators.
We include reverb, delay, chorus, phaser, flanger, distortion, compressor, EQ, filter, bitcrusher, limiter, gate, and more. All running natively in your browser.
Yes, every parameter on every instrument and effect can be automated. Draw automation curves or record them in real-time from your controller.