JSON Tools

JSON Tools is a fast, modern JSON workbench built for developers who live inside APIs.

WHAT YOU CAN DO
• Explore large JSON files in tree or raw view with collapsible nodes
• Edit with line-numbered syntax highlighting, Undo/Redo, and smart indent
• Catch errors as you type with instant JSON validation and clear messages
• Compare two JSON documents line by line with the diff engine
• Generate strongly-typed Dart model classes in one tap
• Spin up realistic mock data for unit tests in seconds
• Visualize structure as a connected graph with Graph View

BUILT FOR
Flutter / Dart developers, backend engineers, QA engineers, and anyone who wrestles with JSON every day.

EXPERIENCE
Personalized Light and Dark themes, smooth animations, and an ad-free Premium option for focused work.

Take control of your JSON—download JSON Tools now.