SYSTEM ONLINE · 16 TOOLS LIVE
A workbench for
your music.
Fast, free utilities for the small calculations that interrupt a creative session. No accounts. No clutter. Just the tool you need.
Tool index
Each ToneAnvil tool gets its own focused page, so you can open exactly what you need.
Tap Tempo
Find a song or performance tempo by tapping the pulse.
OPEN TOOL ↗BPM → Milliseconds
Convert BPM into delay times for common rhythmic subdivisions.
OPEN TOOL ↗Loop / Sample Length
Turn BPM and bars into exact loop duration, milliseconds and audio samples.
OPEN TOOL ↗Note ↔ Frequency / MIDI
Convert musical notes, frequencies and MIDI numbers, with cents and reference tuning.
OPEN TOOL ↗Chord Transposer
Transpose chord progressions or full chord sheets while preserving chord quality, extensions and slash bass notes.
OPEN TOOL ↗Chord Identifier
Select the notes you are playing and identify possible chord names, inversions and alternate interpretations.
OPEN TOOL ↗Kick–Bass Pocket Mapper
Map kick, bass and sidechain timing on a step grid to see where low-end attacks are masked or recovered.
OPEN TOOL ↗Supersaw / Unison Motion
Design unison detune mathematically: voice frequencies, beat rates, movement cycles and stereo positions.
OPEN TOOL ↗Phase / Comb Collision Mapper
Predict phase rotation, cancellation and comb-filter notches when layering a signal with a delayed copy.
OPEN TOOL ↗Groove DNA / Microtiming
Design groove with swing, per-hit microtiming and velocity, then export the result as a MIDI clip.
OPEN TOOL ↗Bassline Generator
Generate playable electronic basslines with musical constraints, seeded randomization and MIDI export.
OPEN TOOL ↗Riff Generator
Generate editable melodic riffs with motif logic, interval control, style presets and MIDI export.
OPEN TOOL ↗Monophonic Audio → MIDI
Load a monophonic audio sample, detect its notes, clean and edit them in a piano roll, then export MIDI.
OPEN TOOL ↗Drum Loop → MIDI
Extract transient timing, velocity and drum lanes from a loop, edit the groove and export MIDI with its microtiming intact.
OPEN TOOL ↗MIDI Mutation Lab
Load a MIDI phrase, generate controlled variations while preserving what matters, edit the result and export a new MIDI file.
OPEN TOOL ↗Euclidean / Polyrhythm MIDI
Build Euclidean rhythms, true cross-rhythms and polymeters across four independent lanes, then preview and export MIDI.
OPEN TOOL ↗The rack is growing
More utilities will be added one at a time, each built to solve one musical job quickly.
Forge the numbers. Keep the music moving.