Music Creation Tools
Program a beat, find a BPM and key, generate evolving textures, or turn a track into a video, all running locally with no sign-up.
Which tool do you need?
| If you want to… | Use | Why |
|---|---|---|
| Program a drum pattern from scratch | Beat Maker | A step sequencer with eight instruments, synthesized kits, swing, and pattern presets. |
| Find a song's BPM and key before remixing or practicing it | BPM Detector | Tempo, key, and Camelot code with a confidence score, plus batch analysis for multiple files. |
| Turn any sound into evolving textures or ambient clouds | Granular Synth | Grain size, density, scatter, and pitch controls, with a seed for reproducible results. |
| Trigger sound effects or clips on the fly | Soundboard | Polyphonic pads with keyboard hotkeys, one-shot or loop playback, and a board you can save locally. |
| Turn a track into a video with reactive visuals | Music Visualizer | Five visual styles and multiple aspect ratios, recorded as a video with the audio attached. |
| Check the frequency range you can actually hear | Tone Generator | An informal, non-diagnostic tone and sweep generator with adjustable frequency and level. |
Create & analyze tools 6
Grain-based synthesizer for ambient textures, drones, and glitch sound design.
Texture engineTone and sweep generator with a speaker test and an informal hearing range check.
Tones & sweepsAudio-reactive visualizer with 5 styles, title overlay, and video export.
Audio-reactive videoBuilding music vs. analyzing it
Three tools here are for building something new. The beat maker is a step sequencer across eight instruments and synthesized kits, for programming a drum pattern from scratch. The granular synthesizer turns any sound into grains you can stretch, scatter, and reshape into clouds, shimmer, or glitch textures that don't resemble the source anymore. The soundboard is built for triggering, not composing — polyphonic pads with hotkeys, for cueing sound effects or clips on the fly rather than laying out a timeline.
The rest of this group is about understanding or presenting music you already have. The BPM detector analyzes tempo, key, and Camelot code from a file, with a tap-tempo pad and batch analysis across multiple tracks. The hearing test is a tone and sweep generator for checking speakers or your own hearing range informally, not a diagnostic tool. The music visualizer doesn't analyze or generate audio at all — it renders reactive visuals against a track you already have and records the result as a video.
Programmed beats vs. one-shot triggers
The beat maker and soundboard can both play back sounds you press, but they're built for different workflows. Beat maker is a 16- or 32-step sequencer with per-step velocity, swing, and pattern presets like four-on-the-floor or trap, meant for programming a repeating pattern in advance and then rendering it to audio or exporting it as MIDI. Soundboard has no sequencer or timeline at all — you add sounds, assign them to pads with keyboard hotkeys, and trigger them live, with one-shot or loop playback per pad, which suits sound effects, drops, or samples you want to fire off in real time rather than a pattern you're composing bar by bar.
Getting a BPM and key before you build
If you're building on top of an existing track — matching a beat to it, changing its tempo, or working out what key to sing or play in — the BPM detector is worth running first. It gives you a tempo estimate with a confidence score and half- or double-time alternatives, since tempo detection can land on the wrong multiple, along with a musical key, mode, and Camelot code for matching compatible tracks. From there, you can carry the target BPM into the beat maker's tempo field or into the tempo changer to bring a second track in line, rather than guessing at a number by ear.
Frequently asked questions
Is the beat maker a full DAW?
No. It's a step sequencer for programming and rendering drum patterns, with pattern presets, a live pad mode, and audio or MIDI export. It doesn't handle multitrack arrangement, mixing plugins, or recording live instruments the way a full digital audio workstation would.
Is the hearing test a medical diagnosis of my hearing?
No. It's an informal tone and sweep generator you can use to get a rough sense of the frequencies you can hear, not a clinical or diagnostic hearing test. If you have concerns about your hearing, see a qualified professional.
What are the soundboard's keyboard hotkeys?
Pads map to 1 through 9, 0, and Q through P, with Esc as a Stop all shortcut. You can rename, remove, and adjust the volume or loop mode of each pad individually.
Does the granular synthesizer give the same result every time?
With the same seed value and settings, yes — the tool is built to be reproducible so you can return to a texture you liked. Changing the seed, or any other parameter, produces a different result.
Are these tools free, and is my audio uploaded?
Yes, every tool here is free with no sign-up. Audio is processed in your browser and is never uploaded to a server.
What resolutions does the music visualizer export?
It supports 16:9 (1280×720), 9:16 (720×1280), and 1:1 (1080×1080) aspect ratios, recording a video in real time with your audio and an optional title and artist overlay.