Apps & Tools
Interactive single-page applications and mini-tools for AI governance, research, and productivity.
Disclaimer: All applications listed here are experimental and intended for research purposes only. They are not designed for production use.
Interactive Tools
Data Engineering · PLOON · JSON · Optimization
A professional-grade JSON to PLOON converter with real-time validation, syntax highlighting, and compression analytics.
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Markdown · Mermaid · Diagrams · Productivity
A local Markdown renderer with live preview, integrated Mermaid diagrams, per-diagram export overlays, bulk PNG/ZIP download, and configurable render quality.
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NLP · Semantic Analysis · Text Mining · AI
Two-layer in-browser semantic text analysis engine. Statistical PMI clustering + conceptual hierarchy mapping (830 concepts → 80 domains → 12 root categories). Supports Markdown-aware analysis with keyword extraction, TextRank, NER, and sense disambiguation.
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GDPR · Privacy · Data Classification · Compliance
Metadata & schema analysis engine that classifies database field names against GDPR categories. Supports CSV/TSV import, customizable rulesets with DE/EN keywords, manual overrides, and result export. Fully local — no data leaves your browser.
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Project Management · Gantt Chart · Planning · Productivity
Lightweight project planning tool with interactive Gantt chart, hierarchical task management, drag-to-reschedule bars, custom columns, multi-scale timeline (days to years), and JSON export/import. Fully local — all data stays in your browser's localStorage.
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AI-Powered Tools
⚠️ Financial Risk & API Key Warning: The applications in this section connect directly to third-party AI APIs (Anthropic, OpenAI) using API keys that you provide. Every AI request incurs real monetary charges on your API account. There are no built-in spending limits. Heavy usage can accumulate significant costs. The author assumes no responsibility for any API charges, overages, or financial costs incurred. Use API keys with restricted permissions and low billing limits.
🔒 Data & GDPR: These tools store all data exclusively in your browser's localStorage. The author does not collect, process, or have access to your documents, API keys, or usage data. When AI features are used, your text is sent directly from your browser to the selected API provider (Anthropic or OpenAI) under their respective privacy policies. You are the data controller and responsible for GDPR compliance regarding any personal data you submit to third-party APIs. Do not submit sensitive personal data to AI APIs without proper assessment.
AI Writing · LLM · Anthropic · OpenAI · Productivity
AI-powered writing assistant with inline text transformations, streaming diff view, voice profiles, prompt chains, and multi-document support. Uses your own Anthropic or OpenAI API keys — runs entirely in your browser.
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Children's Apps
⚠️ Parental Notice & Disclaimer: The applications listed in this section are designed for young children and are provided strictly as-is, for personal entertainment purposes only. The author assumes no responsibility or liability whatsoever for any use of these applications. They are not intended as educational tools, therapeutic aids, or substitutes for parental supervision. Parental supervision is required at all times. Screen time, content suitability, and device usage remain entirely the responsibility of the parent or guardian. By accessing these applications, you acknowledge and accept full responsibility for their use. No warranties — express or implied — are provided regarding functionality, safety, or fitness for any particular purpose.
Children · Coloring · Drawing · Creative Play
A playful coloring and drawing app for toddlers. Features tap-to-fill coloring pages, free-draw brush mode, emoji stamps, cheerful sound effects, and a child-friendly landscape interface. Installable as a PWA.
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About These Apps
These are standalone HTML/JS applications that run entirely in your browser. They are designed to be lightweight, privacy-focused, and easy to deploy.