Cloud Android emulators for app developers and coding agents
Fast, browser-based JSON viewer, formatter, validator and converter that runs entirely client-side
Stage
Not given
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Founded
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Based in
US
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Pricing model
Freemium
Free
Pricing
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.
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Key features
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
View JSON in tree, code, and text modes
Format and beautify unreadable JSON
Validate JSON and catch syntax errors
Minify JSON to reduce payload size
Convert JSON to CSV, Excel, YAML, and XML
Decode JWT tokens and inspect claims
Generate UUIDs and encode or decode Base64 data
Compare and diff JSON structures
Sort, search and transform JSON data
All processing runs 100% client-side in browser
What makes it different
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
Privacy-first: all processing runs client-side with no server uploads, storage or logging
No installation or signup required; works directly in modern web browsers
Side-by-side input and output view for easy comparison and debugging
Comprehensive toolset covering viewing, formatting, validation, conversion and comparison in one place
Works on desktop and mobile browsers without any setup time
Ramus
JSONViewerTool