Local
My Screen Resolution
Check current display dimensions for QA and design testing.
Check Resolution
Responsive Checker
Preview how a site behaves across desktop and mobile form factors.
Client Sandbox Instant
Type a site address to load preview frames. (Note: Some domains restrict iframe embedding via X-Frame-Options policies).
Smartphone (Mobile Preview - 375px × 640px)
Tablet Frame (768px × 600px)
About Responsive Checker
Audit responsive design sheets. Load frame containers at specific resolution breaks to test grid layouts.
Nasıl Kullanılır
- Paste your live target page URL.
- Select form factor presets (Desktop, Mobile, Tablet).
- Observe media query adaptations inside sandbox frames.
Visual Walkthrough
Interactive Usage Guide
Step-by-step interactive mockup tutorial
1Step 1 of 3
toolchi.online/sandbox
DROP FILE HERE
✨Why Toolchi's SEO Diagnostics are Different
Most online responsive checker utilities require uploading your files to remote servers, exposing sensitive business or personal data to leakage, and throttle speeds with download queues. Toolchi is different. Our validators don't just dump raw code parameters. We parse robots.txt and sitemaps to warn you about missing crawl paths, display SSL countdown renewals, visualize redirect chains, and calculate an overall Crawl Health Score to secure your ranking metrics.
🛠️Need programmatic automation for this workflow?
Toolchi offers high-performance Developer APIs for this tool's pipeline. Integrate image compression, PDF merge/split, SEO audits, and AI generation programmatically.
FAQs
Does it support custom widths?
Yes, viewport dimensions can be adjusted dynamically in the review workspace.
Secure Client-Side Sandbox
Toolchi operations are executed fully in your local browser sandbox. Zero files, strings, or image buffers are uploaded to servers, ensuring complete security.
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