ZEEP, audio editor

ZEEP is a multitrack audio editor built on one idea: edit audio the moment you touch it, with nothing to render and nothing to wait for. Stack clips on lanes, scrub speed and pitch live, and clean up recordings with on-device AI noise reduction. No account, no login, no ads.

🧬 Multitrack, clip by clip
Lanes hold as many clips as you drop on them. Long-press a clip and drag it anywhere: along the timeline, onto another lane, past a clip in its way, with a live preview of exactly where it will land. Pinch to zoom, split a clip at the playhead or join neighboring clips back into one, align one clip to another with an in-place preview, duplicate a layer, mix everything down, or commit your edits into a new layer and keep building. A 30-clip session plays back smoothly.

🎙 Record straight into your project
Record stereo audio at studio quality directly into a new layer, then edit it alongside everything else.

📱 Full-screen editing in landscape
Rotate your phone and the waveform takes the whole screen. Speed, pitch, volume, fade, trim, move, split, join, duplicate and delete each get a compact control right on the timeline. Trim handles sit directly on the clip, every change previews live before you commit, and each editing session lands as one undo step.

✂️ Precise, non-destructive editing

• Trim and cut regions with draggable edge handles, without rewriting your file
• Reverse any layer
• Per-layer volume with linear fade in and fade out
• Compress dynamic range with a single knob, with automatic make-up gain and a safety limiter

⚡ Realtime speed and pitch
Change speed without changing pitch, or shift pitch without changing length, and hear the result instantly as you adjust. The "Keep natural sound" toggle keeps a shifted voice or instrument sounding like itself, even on large shifts. Tuned engine modes for voice, mixed audio, and music.

🤖 AI noise reduction, on device
Remove background noise from voice recordings with DeepFilterNet, a machine-learning denoise model that runs entirely on your phone. No upload, no cloud, no server wait. Auto-detect and strip silent gaps to tighten up voice and podcast recordings.

🔁 Import and export
Import almost any audio format, decoded and handled internally at full quality. Export to MP3 (128/192/320 kbps), M4A / AAC, WAV, or lossless FLAC, with quality presets where they matter.

🔒 Private by design
No account, no sign-in, no ads. Editing runs entirely on your device with no network connection; your audio never leaves your phone. Every feature is included, nothing behind a paywall.

Built on a native C++ audio engine for low-latency, non-destructive editing with full undo and redo, ZEEP is made for musicians and anyone who wants quick, clean multitrack edits on a phone.

Open ZEEP and edit your first track in seconds.