BUFFR beta · free through August 9 Try it

BUFFR

Retrospective audio and MIDI capture.

Free through August 9. No card required.

Download Activate
  • CLAP
  • VST3

Leave it on a track, bus, or master. When something good already happened, scrub back and take it.

Up to 16 channels of audio plus expressive MIDI. Waveform and spectral views, then drag the useful part into the session.

Features

Capture

  • Up to 16 channels of retrospective audio capture
  • MIDI notes, velocity, CC, pitch bend, pressure, and host expression
  • Host + Global MIDI — listen while BUFFR sits on the master
  • Rolling, record, or on-detect capture from 1 to 60 minutes

Find

  • Waveform, oscilloscope, and full-bin FFT heatmap views
  • Independent audio and MIDI lanes, selections, playheads, and zoom
  • Zero-crossing, transient, and MIDI-grid snapping
  • Jam markers with host bar and tempo in filenames

Export

  • Drag audio, MIDI, and spectral selections into the host
  • FLAC/WAV 24-bit plus lossy audio formats; MIDI as SMF
  • True-peak normalization to 0 dBTP
  • WAV, FLAC, MP3, M4A/AAC, Ogg/Opus, and AIFF import

Compatibility

  • CLAP and VST3 on macOS, Windows, and Linux
  • Preset themes and live seed-based custom themes
  • Background archive for long buffers

Specs

Status
Free beta through August 9, 2026
Audio
Up to 16 channels
MIDI
16 channels + Global MIDI
Buffer
Up to 60 minutes
Formats
CLAP, VST3
Platforms
macOS, Windows, Linux

Downloads

Each installer includes CLAP and VST3.

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