Iframe Generator

Script Tag Generator Script tag snippet for external JS files. Anchor Link Generator Anchor link HTML snippet for internal navigation. Agent Tool Call Tester Check an agent's proposed tool call against a JSON Schema and locate invalid arguments before execution. AI Output Benchmark Compare two sets of structured AI answers against expected JSON and an optional schema, case by case.

HTML Entities Explained with Practical Examples Understand when characters need HTML entities and when to decode them. Why Pasted JSON Breaks After Copying from a Website Spot smart quotes, hidden characters and copied formatting problems.