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Json Sage
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Json Sage
Free online json viewer, editor & validator
# Developer Tools
Featured on : Oct 12. 2025
Featured on : Oct 12. 2025
What is Json Sage?
Free JSON viewer, editor & validator with schema validation, auto-fix and diff. Format, validate and repair JSON files instantly. Perfect for developers.
Problem
Users struggle to manually format, validate, and repair JSON files without dedicated tools, leading to inefficiency, errors, and time waste in data processing.
Solution
An online JSON viewer, editor, and validator tool that allows users to instantly format, validate, and repair JSON files with features like schema validation, auto-fix, and diff capabilities.
Customers
Developers, data engineers, and QA testers who regularly work with JSON data for APIs, configurations, or data pipelines.
Unique Features
Integrated schema validation, auto-fix for malformed JSON, and a side-by-side diff tool for comparing JSON structures.
User Comments
Simplifies debugging JSON errors
Saves time in formatting and validation
Essential for API development workflows
Intuitive interface for quick edits
Reliable schema enforcement
Traction
Free tool with 50,000+ monthly active users; founder has 2.2k followers on X (Twitter)
Market Size
The global developer tools market is projected to reach $7.3 billion by 2025, driven by demand for efficient coding and data-handling solutions.