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ZeroTwo works best on modern browsers and devices. If you experience display issues, missing features, or performance problems, your browser or device may need updating or configuration changes.

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Supported platforms

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Desktop browsers

These browsers provide the best ZeroTwo experience:
BrowserMinimum VersionRecommended
ChromeVersion 100+Latest stable
FirefoxVersion 100+Latest stable
SafariVersion 15.4+Latest stable
EdgeVersion 100+Latest stable
BraveVersion 1.40+Latest stable
OperaVersion 86+Latest stable
Most features work perfectly on these browsers when updated to recommended versions.

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Operating systems

Supported versions:
  • Windows 11 (all versions)
  • Windows 10 (version 1909+)
  • Windows Server 2019+
Known issues:
  • Windows 7/8: Limited browser support
  • Windows 10 older than 1909: May have performance issues
Recommendations:
  • Keep Windows updated
  • Use Windows 11 for best performance
  • Enable hardware acceleration
Supported versions:
  • macOS Sonoma (14.0+)
  • macOS Ventura (13.0+)
  • macOS Monterey (12.0+)
  • macOS Big Sur (11.0+)
Known issues:
  • macOS Catalina (10.15): Safari may have limitations
  • Older versions: Reduced feature support
Recommendations:
  • Update to latest macOS version
  • Use Safari 15.4+ or latest Chrome/Firefox
  • Enable “Allow JavaScript” in Safari settings
Supported distributions:
  • Ubuntu 20.04 LTS or newer
  • Fedora 35 or newer
  • Debian 11 or newer
  • Arch Linux (current)
  • Other modern distros with updated browsers
Recommendations:
  • Keep browser packages updated
  • Use official browser versions (not snap when possible)
  • Enable hardware acceleration if available
Supported versions:
  • iOS/iPadOS 15.4 or newer
  • iOS/iPadOS 16+ recommended
Known limitations:
  • File upload size may be restricted
  • Some advanced features limited by iOS
  • Background processing restrictions
Recommendations:
  • Update to latest iOS version
  • Use Safari or Chrome
  • Enable camera/microphone permissions when needed
Supported versions:
  • Android 10 or newer
  • Android 12+ recommended
Recommendations:
  • Use Chrome or Firefox
  • Keep system WebView updated
  • Enable JavaScript and cookies

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Common compatibility issues

1

Features not appearing

Symptoms:
  • Missing buttons or menus
  • Blank areas on page
  • Tools not loading
Solutions:
  1. Update browser to latest version
  2. Clear browser cache and cookies
  3. Disable browser extensions temporarily
  4. Check JavaScript is enabled
  5. Try different browser
1. Press Ctrl+Shift+Delete (Cmd+Shift+Delete on Mac)
2. Select "All time"
3. Check "Cached images and files"
4. Click "Clear data"
2

Display or layout problems

Symptoms:
  • Text overlapping
  • Misaligned elements
  • Mobile view on desktop
  • Zoom issues
Solutions:
  1. Reset zoom level: Press Ctrl+0 (Cmd+0 on Mac)
  2. Update browser: Ensure latest version
  3. Check display scaling: System display settings should be 100-150%
  4. Disable custom CSS: Remove any user stylesheets
  5. Try incognito mode: Rules out extension conflicts
Browser zoom should be at 100% for optimal display. Use ZeroTwo’s built-in text size controls instead.
3

Performance issues

Symptoms:
  • Slow loading
  • Laggy interactions
  • Browser freezing
  • High CPU/memory usage
Solutions:
Chrome:
  1. Settings → System
  2. Enable “Use hardware acceleration when available”
  3. Restart browser
Firefox:
  1. Settings → General → Performance
  2. Uncheck “Use recommended performance settings”
  3. Enable “Use hardware acceleration when available”
Safari: Hardware acceleration is enabled by default.
4

File upload failures

Symptoms:
  • Files won’t upload
  • Upload stuck at 0%
  • Unsupported file type errors
Solutions:
  1. Check file size: Maximum 512MB per file
  2. Verify file type: See supported formats
  3. Try different browser: Some browsers handle uploads better
  4. Disable extensions: Ad blockers may interfere
  5. Check network: Ensure stable connection
On iOS, some file types may be restricted by system limitations. Try using Safari or accessing from desktop for full upload support.

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Browser-specific issues

Common problems:
  • Intelligent Tracking Prevention blocking features
  • Private browsing limitations
  • WebKit-specific rendering issues
Solutions:
  1. Allow cookies from zerotwo.ai:
    • Safari → Settings → Privacy
    • Uncheck “Prevent cross-site tracking” (or allow zerotwo.ai specifically)
  2. Disable content blockers:
    • Safari → Settings → Websites → Content Blockers
    • Set to “Off” for zerotwo.ai
  3. Update Safari:
    • System Settings → General → Software Update
  4. Try Safari Technology Preview for latest features
Safari’s privacy features are important but may occasionally interfere with web applications. Allowing specific sites maintains privacy while enabling functionality.
Common problems:
  • Enhanced Tracking Protection blocking features
  • Container isolation issues
  • Add-on conflicts
Solutions:
  1. Adjust tracking protection:
    • Click shield icon in address bar
    • Turn off “Enhanced Tracking Protection” for zerotwo.ai
  2. Check container settings:
    • If using containers, ensure zerotwo.ai isn’t restricted
  3. Test in Troubleshoot Mode:
    • Help → Troubleshoot Mode
    • Disables all extensions temporarily
  4. Update Firefox:
    • Menu → Help → About Firefox
Common problems:
  • Extension conflicts
  • Aggressive ad blocking
  • Site isolation issues
Solutions:
  1. Disable extensions one by one to identify conflicts
  2. Whitelist zerotwo.ai in ad blockers:
    • Click extension icon
    • Add zerotwo.ai to whitelist
  3. Check site settings:
    • Click lock icon in address bar
    • Ensure JavaScript, cookies enabled
  4. Reset Chrome settings if issues persist:
    • Settings → Reset settings → Restore settings to original defaults
Common problems:
  • Limited screen space
  • Touch interaction issues
  • Keyboard covering inputs
  • Auto-zoom on input focus
Solutions:
  1. Use landscape orientation for complex interfaces
  2. Update mobile OS and browser to latest versions
  3. Enable “Request Desktop Site” if mobile view has issues
  4. Ensure sufficient storage space on device
  5. Restart browser app to clear temporary issues
For extended work sessions, consider using ZeroTwo on a desktop/laptop for the best experience. Mobile is great for quick interactions.

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Accessibility features

ZeroTwo supports standard browser accessibility features:

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Keyboard navigation

  • Tab: Navigate between elements
  • Enter/Space: Activate buttons
  • Escape: Close modals
  • Arrow keys: Navigate lists and menus
All interactive elements are keyboard accessible for users who cannot use a mouse.

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Screen readers

Tested with:
  • NVDA (Windows)
  • JAWS (Windows)
  • VoiceOver (macOS/iOS)
  • TalkBack (Android)
ARIA labels and semantic HTML ensure screen reader compatibility. Report any accessibility issues to our support team.

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Visual adjustments

Supports browser settings for:
  • Custom font sizes
  • High contrast mode
  • Dark mode (system preference)
  • Color blindness accommodations
  • Reduced motion preferences

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Developer tools and debugging

Open browser developer tools to diagnose issues:
Press F12 or Ctrl+Shift+I (Cmd+Option+I on Mac)
Go to Console tab
Look for red error messages
Common errors to look for:
  • JavaScript errors (red text)
  • Network failures (404, 500 errors)
  • CORS issues
  • WebSocket connection problems
Take a screenshot of console errors when reporting bugs - it helps support diagnose issues much faster.

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Testing compatibility

1

Verify browser version

Check you’re using a supported browser version:
  1. Chrome/Edge: chrome://version or edge://version
  2. Firefox: about:support
  3. Safari: Safari → About Safari
  4. Brave: brave://version
2

Test in incognito/private mode

This tests without extensions or cached data:
  • Chrome: Ctrl+Shift+N (Cmd+Shift+N)
  • Firefox: Ctrl+Shift+P (Cmd+Shift+P)
  • Safari: File → New Private Window
  • Edge: Ctrl+Shift+N (Cmd+Shift+N)
If ZeroTwo works in private mode but not regular mode, the issue is likely caused by an extension or cached data.
3

Try different browser

Test with a completely different browser to isolate browser-specific issues:
  1. Install alternative browser if needed
  2. Navigate to zerotwo.ai
  3. Log in and test functionality
  4. Compare behavior to primary browser
4

Update system and drivers

Ensure your system is fully updated:
  • Windows: Windows Update
  • macOS: Software Update
  • Linux: Package manager updates
  • Graphics drivers: Manufacturer website
Outdated graphics drivers can cause rendering issues and poor performance even with an updated browser.

Upload errors

Troubleshoot file upload issues

Model timeouts

Fix connection and timeout problems

Tools and permissions

Resolve permission issues

Report a bug

Report compatibility problems