A fast, searchable reference for all Eventide H90 harmonizer pedal algorithms
Browse 76 algorithms across 12 categories with instant search, parameter details, and full manual descriptions — all in a lightweight static site.
- 76 Algorithms — All algorithms across 12 categories (Delay, Reverb, Modulation, Distortion, etc.)
- Instant Search — Filter by algorithm name, parameter name, overview text, or preset name
- Category Filters — Multi-select pill buttons with count badges
- Demo Filter — One-click filter to show only algorithms with official Eventide sound demos
- YouTube Demos — Direct links to official Eventide demo videos for 21 algorithms
- Factory Presets — 847 factory preset names displayed in detail modal
- Shareable Links — Copy link button in detail modal; deep link to any algorithm via
#algo=<slug> - Parameter Info Bar — Hover or click any parameter tile to see its description and range; click to lock
- Detail Modal — Full verbatim parameter descriptions from the official H90 manual
- Performance Parameters — Circular badges showing performance knobs (Repeat, Self Osc, etc.)
- Pagination — Algorithms with 10+ parameters paginate automatically
- Agent-Friendly —
llms.mdandllms-full.mdendpoints for AI agent consumption - Keyboard Navigation —
/to focus search,Escapeto close modal,Tabthrough elements - Responsive — Works at 375px, 768px, 1024px, 1440px
git clone https://github.com/tsungtwu/h90-lens.git
cd h90-lens
npm install
npm run devnpm run build # production build → dist/
npm run preview # preview production build locallyDeployment is automated via GitHub Actions — push to main triggers build and deploy to GitHub Pages.
Re-extract algorithm data from the latest official H90 manual:
pip install beautifulsoup4 requests
# Extract and sync to public/
python scripts/update_algorithms.py --sync-public
# Regenerate agent-friendly markdown
python scripts/generate_llms_txt.pyOptions:
--fresh— Ignore existing data and extract from scratch--dry-run— Print JSON to stdout without writing--base-url— Override manual URL (restricted to Eventide domains)
h90-lens/
├── src/
│ ├── App.vue # Root component, keyboard shortcuts
│ ├── main.js # Vue app entry
│ ├── assets/main.css # Tailwind v4 @theme config
│ ├── components/
│ │ ├── AlgorithmCard.vue # Card with param grid, perf circles, info bar
│ │ ├── CategoryFilters.vue # Category pill buttons with counts
│ │ ├── CategoryIcon.vue # SVG icon renderer per category
│ │ ├── DetailModal.vue # Full parameter detail (ARIA, focus trap)
│ │ ├── InfoBar.vue # Structured param info display
│ │ ├── ParamCard.vue # Individual parameter tile
│ │ ├── PerfCircle.vue # Performance parameter circle
│ │ └── SearchBar.vue # Debounced search input
│ └── composables/
│ ├── useAlgorithms.js # Shared state (algorithms, search, filters)
│ └── useCategoryIcons.js # SVG icon map for 12 categories
├── public/
│ ├── data/algorithms.json # 76 algorithms (static asset)
│ ├── llms.md # Agent-friendly overview
│ └── llms-full.md # Agent-friendly full reference
├── scripts/
│ ├── update_algorithms.py # Extract data from H90 manual
│ └── generate_llms_txt.py # Generate markdown from JSON
├── data/algorithms.json # Source data (edit here)
├── vite.config.js # Vite + Vue + Tailwind, base: '/'
└── index.html # Entry point with CSP meta tag
- Framework: Vue 3 (Composition API,
<script setup>) - Build: Vite 8
- Styling: Tailwind CSS v4 via
@tailwindcss/vite - Fonts: Google Fonts — Righteous (headings) + Poppins (body)
- Data Extraction: Python + BeautifulSoup
- Deploy: GitHub Pages via GitHub Actions
| URL | Format | Description |
|---|---|---|
/llms.md |
Markdown | Site overview + links |
/llms-full.md |
Markdown | All 76 algorithms with full parameter details |
/data/algorithms.json |
JSON | Structured algorithm data |
Algorithm data sourced from the Eventide H90 Manual. Not affiliated with Eventide Audio.
MIT
tsungtwu - @tsungtwu
Built with Claude Code