JSON Diff & Compare Tool
Compare two JSON objects side-by-side and visualize differences with color-coded highlighting. Perfect for debugging API changes, comparing configurations, and reviewing data transformations.
How to Use This Tool
Paste your first JSON object in the "Original" input box and your second JSON object in the "Modified" input box. The tool automatically compares the two JSON structures and highlights the differences in real-time.
Use the "Side-by-Side" view to see both JSON objects with their differences aligned, or switch to "Unified" view for a single, merged view similar to Git diffs. Green highlights show added fields, red shows removed fields, and yellow shows modified values.
All comparison happens in your browser – your JSON data never leaves your device. Perfect for comparing API responses, configuration files, or any JSON data structures.
Common Use Cases
JSON diff tools are essential for debugging API changes between versions, comparing development and production configurations, reviewing data transformations, and understanding what changed in API responses.
Developers use JSON comparison to track schema changes, verify data migrations, compare webhook payloads, and debug unexpected API behavior. It's also useful for code reviews when configuration files are updated.
Use this tool when investigating "what changed" between two API responses, comparing before/after states in testing, or documenting API version differences for migration guides. For more developer tools, explore vidspeed.app.
Why Use Our JSON Diff Tool?
Visual Diff
Color-coded highlighting makes it easy to spot additions (green), deletions (red), and modifications (yellow) at a glance.
Two View Modes
Choose between side-by-side comparison or unified diff view, depending on your preference and screen size.
Diff Statistics
Get instant statistics showing the number of added, removed, modified, and unchanged fields in your comparison.