PolyPhontics 2.0

Convert between SoundFont 2, DLS, EXS24, SFZ, and DecentSampler — the only Mac app that handles all five with full round-trip import and export.

Originally released in 2001, PolyPhontics 2.0 is a complete ground-up rewrite. Native Cocoa, no dependencies, no subscriptions.

Format	Extension	Import	Export
SoundFont 2	.sf2	✅	✅
DLS (Downloadable Sounds)	.dls	✅	✅
EXS24 (Logic Pro Sampler)	.exs	✅	✅
SFZ	.sfz	✅	✅
DecentSampler	.dspreset	✅	✅

Hear your instruments instantly. On-screen piano keyboard, MIDI controller support, real-time playback with reverb and chorus.

Persistent library shared across all documents. Import once, use everywhere. No more hunting for samples.

Batch-import audio files with automatic key mapping — chromatic, drum kit, or auto-detect from filenames.

Per-zone key/velocity ranges, loop points, ADSR envelopes, filter, LFO, tune, gain, pan. Waveform and spectrogram views.

All 128 GM programs and drum kits. Create a complete GM Set with one click. Bank/preset assignment.

Open and work on multiple banks simultaneously. Full undo/redo. Dark mode. English, Spanish, German.

Export samples as WAV, AIF, CAF, or M4A — single files or batch export entire banks.

Free Download · $19.99 to Unlock

Open, browse, and edit for free. One-time purchase to unlock Save & Export. No subscription.