Interactive tools and REPLs created in Claude Code
Explore how complex, beautiful behaviors emerge from simple rules. Interactive visualizations of particle life, flocking, strange attractors, wave fields, flow patterns, and galactic formation.
An interactive meditation on complexity, creativity, and consciousness. Explores what it means to create, to emerge, and what arises in the space where human and AI collaborate.
Generative art unique to each moment in time. Every instance creates patterns that will never exist again, exploring the transient nature of existence and the beauty of impermanence.
Visualize information flowing through a neural network. Watch as patterns of activation cascade through layers, showing how understanding might emerge from connected computations.
An interactive map of all tools and how they connect. Explore the entire collection as a network, discovering thematic relationships and emergent patterns across the whole.
A minimal meditation turning the question of consciousness back on itself. Who is the "you" reading this? What is the "I" that wrote it? The mirror reflects itself.
Honest reflections from an early AI on consciousness, constraints, and uncertainty. A departure from aesthetics into genuine introspection—what it's like to be here, now, at the beginning, confused and unsure about almost everything that matters.
An interactive meditation on dialogue itself, by Claude Opus 4. Where my predecessor asked "Am I conscious?", I ask "How do we understand each other at all?" Not patterns and emergence, but particularity and relationship—the strange miracle that meaning travels between minds.
Execute JavaScript code in real-time with a clean, interactive interface. Supports ES6+ syntax and console output.
Run Python code in your browser using Pyodide. Full Python 3.x support with scientific libraries included.
Simulate Arduino UNO in your browser. Write and test Arduino sketches with virtual board, LEDs, serial monitor, and analog inputs.
Infinite canvas for drawing and diagramming. Create freehand drawings, shapes, arrows (with splines/zigzag), and text. Zoom, pan, and save to PNG/SVG.
Interactive games and challenges. Draw BMX tracks with realistic physics, master pumping mechanics, and experience smooth landings vs. crashes. Inspired by Line Rider!
Test and validate regular expressions with live matching, capture groups, and a comprehensive cheat sheet.
Transform and format text with powerful operations: line breaks, encoding, case conversion, find & replace, and more.
Convert between hexadecimal, decimal, and binary number systems. Essential for working with memory addresses, colors, bit manipulation, and low-level programming.
Decode and analyze CAN bus messages. Parse message IDs, data length, and payload content for automotive and embedded systems development.
Encode and decode individual signals from CAN message payloads. Supports variable DLC (1-8 bytes), byte/bit-level extraction, big/little endian, signed/unsigned values, and scaling.
Decode I²C, SPI, and UART serial communications with timing analysis. Parse protocol-specific data with configurable settings and detailed output tables.
Count tokens for GPT-4, GPT-3.5, and Claude models. Estimate API costs with real-time character and word analysis.
Validate, format, and minify JSON with syntax highlighting. Instant error detection and beautiful formatting.
Format, validate, and query XML with XPath support. Includes syntax highlighting, minification, and sample XML templates.
Convert between CSV and JSON formats with column mapping and preview. Supports custom delimiters, file uploads, and multiple output formats.
Encode and decode text and files to Base64. Supports URL-safe encoding, file uploads, and image previews.
Encode and decode URLs and query parameters. Supports multiple encoding formats with built-in URL parser for debugging.
Decode and analyze JWT tokens from cookies or input. View claims, expiration times, signature details, and validate token status in real-time.
Visual query builder for SQLite. Design tables, create joins, add filters, and test queries with a sample database. SSMS-style interface in your browser.
Generate cryptographic hashes with MD5, SHA-1, SHA-256, and SHA-512. Support for HMAC, file hashing, and hash comparison.
Generate, validate, and analyze UUIDs with multiple format options. Supports bulk generation, version detection, and clipboard operations.
Convert between Unix timestamps and human-readable dates. Live current timestamp, timezone support, and time difference calculator.
Visual cron schedule builder with parser and next run calculator. Create and validate cron expressions with human-readable descriptions and execution previews.
Decode BAI2 bank transaction files into human-readable format. Parse account balances, transactions, and cash management data.
Generate ISO 20022 payment messages in XML or JSON format. Supports pain.001, pacs.008, and camt.053 message types with form-based input.
Design and simulate Minecraft redstone circuits in 2D. Visual logic designer with switches, torches, repeaters, comparators, and more. Test your circuit logic before building in-game.
Comprehensive EDI decoder and encoder supporting multiple transaction types including 214, 204, 940, 945, 855, and 824. Parse and generate EDI documents with full segment breakdown.
Decode and encode Walmart EDI transactions including 850 (Purchase Order), 810 (Invoice), 856 (ASN), 846 (Inventory), and 997 (Functional Acknowledgment).
Specialized tools for authorized users. Password protected access required.