Developer guides
Local-first developer workflow guides
Deep dives for using PureToolkit tools safely with real code workflows. Each guide links to a browser-only tool that runs locally without uploading inputs.
How to Convert PostgreSQL DDL to SQLAlchemy 2.0 Models in 2026
A practical guide to turning CREATE TABLE statements into SQLAlchemy 2.0 declarative models with mapped_column, Mapped typing, defaults, and foreign keys.
How to Generate Pydantic v2 Models from JSON with Optional Fields
Learn how JSON examples become Pydantic v2 BaseModel classes, including aliases, nested objects, arrays, nulls, and Optional fields.
Docker Compose for FastAPI, PostgreSQL, and Redis: 2026 Starter Guide
Build a local FastAPI stack with PostgreSQL and Redis using Docker Compose, environment variables, healthchecks, and copyable commands.
How to Generate Regex Named Groups for Nginx Access Logs
Generate JavaScript and Python regex patterns for Nginx combined access logs with named groups for IP, timestamp, method, path, status, and user agent.
How to Reduce System Prompt Tokens Without Changing Code Blocks
Clean long system prompts with local token estimates while preserving fenced code, JSON blocks, XML tags, and YAML-like sections.