Lightweight, instant, client-side tools
No server calls, no database logs, and complete privacy. These tools execute entirely within your browser to help you structure, inspect, and evaluate code and datasets in real-time.
Explore the Toolbox
AI Prompt-to-Spec Converter
Transform rough ideas into structured markdown specifications, PRDs, and database schemas with predefined templates.
LLM Model & Router Chooser
Compare API pricing, latency trade-offs, and capabilities of major LLM providers to compute the ideal routing logic.
JSON/CSV Schema Explorer
Parse messy JSON payloads or CSV lines to inspect structures, generate TypeScript interfaces, and download clean JSON schemas.
RAG Chunking Playground
Visualize how token/character chunk sizes and overlaps divide documents. Run local keyword-retrieval relevance tests live.
API Payload Inspector
Format, validate, and query JSON payloads. Extract headers, calculate byte size, and browse nested trees with paths.
Data-to-Chart Quick Lab
Upload or paste CSV/JSON arrays to instantly generate customizable interactive Bar, Line, Scatter, or Pie SVG charts.
BPE Tokenizer Visualizer
Analyze how common LLM BPE tokenizers split text into token IDs. View character-to-token compression ratios.
Translation BLEU & Post-Editing Lab
Evaluate machine translation quality. Interactively edit MT outputs and watch overlapping n-gram BLEU scores compute.
LLM GPU VRAM Calculator
Calculate VRAM memory requirements for open-source models (Llama, Gemma, DeepSeek) and view recommended gaming GPUs with global prices.