Free online tool for JSON merge, compare, validate and more
Cloud Android emulators for app developers and coding agents
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
US
Pricing model
Free
Freemium
Pricing
Completely free, no login required, no subscription, no hidden fees.
Free: $0, 30 minutes a month, 1 device at a time. Hobby: $2/month, 200 minutes a month, 1 device at a time. Pro: $10/month, Unlimited minutes, 2 devices at a time. Enterprise: Custom pricing.
Key features
Merge JSON files with conflict resolution algorithms
Handle nested structures and complex objects with precision
Visual side-by-side diff tool
Instant online processing
No login required
Client-side data processing for security
Handle large JSON files efficiently
Compare different JSON files
Validate JSON against schemas
Test Android APK builds in a hosted emulator via browser
Give coding agents device control to test and verify builds
GitHub pull request preview environments
Share live device sessions with reviewers by link
Support for Kotlin, Jetpack Compose, Expo, React Native, and Flutter
CLI and MCP access for agents
Isolated and cleaned up build environments
Scoped GitHub token access for builds
Hot reload support and adb access
Terminal trial without account signup
What makes it different
100% free with no login, subscription or hidden fees
Data never stored after processing with client-side security
Handles complex nested structures and arrays with precision
Visual intuitive interface with side-by-side comparison
Instant processing without long wait times
No Android Studio or local setup required—test directly in browser
Isolated environments automatically cleaned up after each session
Scoped repository access with short-lived tokens for security
Integrate coding agents directly with device control
Seamless GitHub pull request integration with live preview links
JSON Merge
Ramus