Simple online tools for images, audio and MIDI
Convert, resize and edit your files. Easy to use, private by design.
Convert images
Convert still JPEG, PNG and WebP images, one batch at a time.
Resize images
Fit images within a width and height while keeping their proportions.
Audio to MIDI
Estimate editable notes from a recording, entirely on your device.
MIDI editor
Open MIDI, inspect notes, edit pitch and timing, and undo changes.
Transpose MIDI
Shift MIDI notes by semitones, with reversible edits.
MIDI to WAV
Render MIDI notes as a simple synthesized WAV preview.
Your files stay yours.
Processing happens in your browser. Your files never need to leave your device.