QUICK ANSWERStart with the tool that matches your immediate input.
Open JSON Schema Example Generator first when its stated purpose matches the result you need now. Use JSON to NDJSON Converter only when it solves a separate next task.
This guide is for developers, analysts, testers, and technical writers. Start with JSON Schema Example Generator when your immediate task is to use the JSON Schema Example Generator to inspect, transform, validate, or generate developer data locally in your browser. Move to JSON to NDJSON Converter only when you also need to use the JSON to NDJSON Converter to inspect, transform, validate, or generate developer data locally in your browser.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether JSON to NDJSON Converter solves a genuinely different next step.
Both tools sit in Developer & Data, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.