Free responsive website checker for mobile, tablet and desktop
Stage
Established
Not given
Founded
2019
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Based in
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Pricing model
Freemium
Free
Pricing
Free tier available. Paid plans include Pro with serverless or dedicated compute options for databases starting at $10/month per database. Enterprise plans offer custom resource limits, volume discounts, and premium support.
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Key features
Authentication with email, SMS, OAuth, and magic URLs
Database management with PostgreSQL and MySQL support
File storage with compression, encryption, and image transformations
Serverless functions with isolated runtimes
Frontend hosting with Git integration
Email, SMS, and push notifications
Firewall with traffic rules and abuse controls
Realtime events and subscriptions
DDoS protection and encryption
Global CDN with 300+ PoP locations
Test multiple device viewports simultaneously
Real CSS viewport rendering
Share setup links
Custom pixel width testing
No installation required
Sync scroll across panes
Browser-based with no account needed
What makes it different
All-in-one platform unifying backend services in one stack
Optimized for AI agents and MCP integration
Enterprise-grade security with SOC 2, HIPAA, and GDPR compliance
Flexible deployment: fully managed Cloud or self-hosted options
Compare multiple real device widths side by side instead of switching one at a time
Faster than DevTools for checking several device sizes at once
Entirely browser-based with no setup, signup or download
Responsive Tool