Tracker-like sequencer DAW for the browser

v0.8.13-alpha

MANUAL DISCORD

Desktop only.

This is an early alpha release and is not fully usable as intended yet. Project saving and loading is disabled until version 1.0.0 and refreshing the page will undo all your progress. You can however export your creations in WAV format.

Join the Discord server to get in touch and follow the development.

Modern Chromium-based browser recommended. Use speakers or wired headphones for best performance.

Buy me a coffee :)

Changelog

v0.8.13-alpha2026-06-20

  • Added Ascending/Descending FX pattern fill commands.
  • Expanded hex automation range to FF.
  • Instrument FX built into the synthesizer.
  • Numerous small changes and bug fixes.

v0.8.12-alpha 2026-06-17

  • Add synth randomize button.
  • Soft launch project saving in URL.

v0.8.11-alpha 2026-06-11

  • Many arpeggiator improvements and change of some app defaults.

v0.8.10-alpha 2026-06-10

  • Bringing back the arranger. Unfinished state right now but LET ME COOK!
  • Removed the Scopes to fully detach UI from audio engine.

v0.8.9-alpha 2026-06-09

  • Deleted the whole sample/multi-sample instrument as a first step towards a more focused and deliberate application.

v0.8.8-alpha 2026-05-31

  • Any number of track parameters can now be mapped to be automated by note velocity.

v0.8.7-alpha 2026-05-30

  • Added VEL FX column for per-note MIDI velocity control (00–7F).
  • MIDI IN velocity is captured and written to the VEL column when entering notes in writing mode.
  • MIDI OUT button is now a 3-step button: OFF|ON|ON+MUTE

v0.8.6-alpha 2026-05-30

  • BPM now supports two decimal places (000.01–999.99). Click the BPM field and type all five digits to confirm.
  • Skip marker key changed from 9 to -. Display changed from 999 to SKP.
  • Added BPM automation column to Master FX.

v0.8.5-alpha 2026-05-23

  • Master channel fx, pattern and automation fixes.
  • Master FX now appear in the instrument panel when master track is selected.
  • Fixed selection move counting empty columns when determining horizontal move offset.

v0.8.4-alpha 2026-05-22

  • Selections now only include cells with content. Empty cells are no longer highlighted, moved, or copied.
  • Holding Shift while selecting shows a selection outline for visual reference.
  • Hardened pattern editor against potential out-of-bounds crashes.

v0.8.3-alpha 2026-05-20

  • Fixed a transposition controls bug.
  • Fixed a bug where pressing Backspace or Delete did not clear selected cells in FX or Master FX columns.
  • Fixed cursor clicking to allow selecting any voice on a multi-voice track when coming from a single-voice track.
  • A few pattern editor navigation improvements.

v0.8.2-alpha 2026-05-16

  • Changed FX channel visibility to hidden by default.
  • Adding an automation channel shows FX panel if hidden.
  • Master FX columns hidden by default - toggled via right click context menu in the pattern editor.

v0.8.1-alpha 2026-05-16

  • Added [P]lunge pitch effect (bend down to current note by a given number of semitones).
  • Deleting notes moves the cursor back by the selected skip value.
  • Navigation improvements.
  • Updated website and started to include the changelog so that users not in the Discord can follow along too.

v0.8.0-alpha 2026-05-15

  • Cmd/Ctrl+Arrow Keys allow to instantly move the cursor to the current area bounds.
  • ENTER key always starts playback from the beginning of the arrangement (use SPACE to start from cursor position).
  • Started migrating to a more user friendly FX command system abandoning the hexadecimal system at least for the user.
  • Vibrato and Pitch effects share the same column and a few more nice-to-have pitch effect commands are now available.
  • If an invalid key is pressed in the Pitch FX column, a reference table is displayed with available commands (hold down the key to keep showing it).

v0.7.34-alpha 2026-05-15

  • Added MIDI OUT. Allows to use psikat as a sequencer for controlling external software and hardware using the built in MIDI driver.