About Chppr

A free, browser-based chop sampler and beat maker. Built for producers who want to slice, play and arrange audio without launching a DAW.

Chppr is an online audio sampler that runs entirely in your web browser. It is not a desktop application, not a mobile app, and not a hardware emulator — it is a working tool designed for producers who want to chop a sample, lay it out on pads, and build a beat in a few minutes.

No install. No signup. No fee. Drop any audio, chop it, play it.

How it works

1. Add a source. Upload an audio file, record from your microphone, or load one of the built-in sample beats.
2. Chop. Split the audio into slices automatically with auto-detect, or manually on the waveform.
3. Play. Tap the 16-pad MPC-style layout to trigger each slice.
4. Build patterns. Program beats on the 4-track step sequencer.
5. Arrange. Chain patterns into a full song with BeatArc.
6. Export or share. Download WAV slices, export a DAW project, or send a share link.

What makes Chppr different

• Browser-based. Works on any device with Chrome, Edge, or Safari. No install needed.
• Free, no signup. Try it without commitment. Sign in only when you want to save or share.
• Non-destructive slicing. Adjust slice points on the waveform anytime without re-uploading.
• Key Sync. Pitch each pad to fit a musical key using the Circle of Fifths.
• Mobile-friendly. Sketch ideas on iPad or iPhone, finish on desktop.
• WAV and DAW export. Take your work into Ableton Live, FL Studio, Logic, or any DAW.
• Share by link. Send your project as a URL. The receiver opens it in their browser instantly.

Who it is for

Music producers who want to chop ideas quickly without launching a DAW. Beat makers sketching on mobile. People curious about the sampler workflow but unsure where to start. Anyone who has opened a sample pack and wished there was a faster way to flip it.

If you are looking for a hardware sampler (Akai MPC, Roland SP series, etc.) or a virtual instrument plugin, Chppr is not that. Chppr is a web tool — instant access, zero setup, designed to get you from "I have an idea" to "I have a beat" in minutes.

Built by nok

Chppr is built and maintained by nok, a producer based in Tokyo. Find releases at nokbeats.com and updates on X (@_nok__).