Synth Doodle
How it works

A tiny instrument for big ideas

Turn your doodles
into sound.

Draw anything. Synth Doodle reads it from left to right and turns every line into a melody—right in your browser.

Layer your sounds Mix the colors Space to play

Your sound canvas

Make some noise

Ready

Saved on this device

Start with a musical template 10 editable songs, including five famous classics

Song mode

Arrange scenes into a full track

1 scene

Performance mode

Launch scenes like an instrument

Tap a pad—or use Q W E R A S D F—to switch scenes and keep the selected loop playing.

Add scenes to build your launchpad.

No lines selected

Use Draw to add lines, Select to move or mix one or more lines, and Erase to remove them. Choose a layer, sound, volume, and musical scale, then press Play to hear the canvas.

Accessible score and keyboard guide

This scene has no drawn notes yet.

    Space
    Play or stop
    D / V / E
    Draw, select, or erase
    1–3
    Choose a sound layer
    ?
    Open this keyboard guide
    Layers

    Select a color to draw. Each layer keeps its own sound and volume.

    Groove
    Sound design

    These effects are included in playback, shared doodles, and WAV exports.

    Microphone layer

    Optional and private to this device. The mic is used only while recording.

    Optional

    Connected studio

    End-to-end encrypted
    Private cloud sync

    Keep using this device only, or connect your project library with a recovery code.

    Live room

    Invite someone to edit the active doodle with you. Room links expire after seven days.

    No one is connected yet.
    Creator profile

    Optional passkey profile for a verified gallery name. No password or email required.

    Project data is encrypted before it leaves this browser. Microphone clips remain only on each device. Passkeys identify gallery creators but never unlock or expose project contents.

    Draw something or try the example to hear your first melody.

    One canvas, three simple rules

    Drawing is the score.

    01

    Height is pitch

    Draw higher for bright notes and lower for deep ones.

    02

    Color is sound

    Each color is a layer with its own instrument and volume.

    03

    Left to right is time

    The playhead sweeps across every line you make.

    60-second studio tour

    Draw your first beat

    Choose a layer, then draw anywhere on the sound canvas.