DRUM SEQUENCER & 808 SYNTH
v0.10.2 BETA — EARLY ACCESS

A browser-based drum machine built for producers who want raw power with no installs, no subscriptions, no nonsense.
Industrial aesthetics. Authentic groove feel. Free to use.

// GET EARLY ACCESS

No spam. No newsletters. Just a link when it drops.

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// FEATURES
⬛⬜⬛⬛
16 / 32 / 64 Step Modes
Three resolution modes — 16th, 32nd, 64th note precision. Multi-bar patterns up to 4 bars. 26 independent pattern banks A–Z.
🎲
Per-Step Velocity & Pitch
5-tier velocity on every step. Per-step pitch override ±24st. Flam, reverse, and ghost hit patterns from a right-click flyout.
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Authentic Groove Templates
MPC 54–66%, Dilla Feel, J Dilla Triplet, Detroit Swing, Halftime Shuffle, Broken Beat — timing + velocity per step, resolution-aware.
⨢
Dual-Layer Samples
BLEND mode plays two samples through a shared signal chain. Drag-shift Layer A/B on a shared timeline. Transient-align in one click. Lock layers independently.
≋
Delay + Reverb FX Bus
Tape & Digital delay algorithms with tempo sync. 8 reverb types: Room, Studio, Plate, Hall, Chamber, Spring, Cathedral, Ambience. Per-track sends.
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9-Lane Automation
Per-bar breakpoint curves for volume, pan, delay send, reverb send, and 3-band EQ. Drawn directly on a canvas in the track row.
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3-Band Semi-Parametric EQ
Low shelf, sweepable mid peak, high shelf per track. Live frequency-response curve. Pre-fader placement. ±12dB per band.
∞
Song Arranger
Chain patterns in any order. Drag to reorder slots. FOLLOW mode syncs editor view to playback. Double-click slots to label sections.
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Offline Render & Export
Render to WAV with full FX chain applied. Selective project save — choose which sections to export. CC BY-NC-ND 4.0, royalty-free to use.
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Mood Visualiser
Full-screen particle canvas behind the UI. Each drum hit ejects rings and scatter dots. Downbeats trigger full-canvas grid pulses. Zero performance cost.
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12 Genre Presets Built-in
House, Deep House, Techno, Trance, Hip Hop, Trap, Jungle, D&B, Afrobeats, Reggaeton, Funk, Latin. One click to load into any pattern slot.
📄
Zero Dependencies
Single self-contained HTML file. Open in any browser. No servers, no sign-in, no internet required after load. Works on air-gapped machines.
// IN THE MACHINE

HOVER THE ● BADGES TO EXPLORE FEATURES  ·  FULL LEGEND BELOW

RIDDAMS·8080 drum machine — full interface 1 2 3 4 5 6 7 8 9 10 11 12 13
1Single HTML file — open in any browser, works offline, zero install
2LED display — BPM · step · pattern · bar · time · play status
3Offline WAV render — full FX chain baked in, selective export
4FX bus — tape & digital delay + 8 reverb types, per-track sends
5Mood visualiser — particle canvas, drum hit rings, zero perf cost
6Transport — 20–300 BPM, tap tempo, MIDI clock out
7Groove templates — MPC swing, Dilla, Detroit, Halftime Shuffle
8Step modes — 16/32/64 steps, up to 4 bars, compound time sigs
9VCA compressor — threshold, ratio, attack, release, makeup, GR
10Pattern banks — 26 banks A–Z, song arranger, labelable sections
11Track controls — mute/solo, EQ, dual-layer BLEND, drag to reorder
12Step grid — right-click: velocity · pitch · flam · ghost hit · reverse
13Add track — up to 16 tracks, any kit/synth/sample combination
// HOW IT WORKS
01
Open in Browser
Download the single HTML file — or visit the hosted version at diddam.com. No install, no account. Chrome, Firefox, Safari, Edge all work.
02
Load a Preset or Start Blank
Pick from 12 built-in genre presets to get running in seconds, or build from scratch with 8 synthesized default kit sounds.
03
Upload Your Samples
Drag in .wav / .mp3 / .ogg per track. Trim waveform, blend two layers, set pitch, volume, EQ, decay, pan — all non-destructively.
04
Dial in the Groove
Choose a groove template: MPC swing, Dilla feel, Detroit, Halftime. Pair with compound time signatures (6/8, 9/8, 12/8) for polyrhythmic work.
05
Automate & Arrange
Draw breakpoint curves on 9 parameters per track. Chain patterns in the Song Arranger. Export a polished WAV with FX baked in.
// GET IN EARLY

RIDDAMS·8080 is in active development. Sign up to be first in line when the public release drops — and to influence what gets built next.

No spam. No newsletters. Just a link when it drops.