Walnut: Webview Debug & Test
Developer ToolsUtilities

Walnut: Webview Debug & Test

Jiwon Park · released 22 Dec 2025 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
Rating 5.00 2 reviews

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Description

The ultimate developer tool for testing WKWebView and SFSafariViewController configurations in real-time.

KEY FEATURES

WKWebView Testing

Real-time configuration testing with 20+ options

Built-in DevTools: Console, Network, Storage, Performance, Sources, Accessibility

JavaScript injection and snippet execution

Custom User-Agent emulation

Viewport and device emulation

SFSafariViewController Testing

Native Safari experience with content blockers

Reader mode and responsive size control

Customizable bar colors and dismiss button styles

Developer Tools

Console: Capture console.log with %c CSS styling support

Network: Monitor fetch/XHR requests with timing data

Storage: View/edit localStorage, sessionStorage, cookies

Performance: Web Vitals (LCP, FID, CLS) and Navigation Timing

Sources: DOM tree inspection, stylesheets, scripts

Accessibility: axe-core based accessibility auditing

Additional Features

Bookmark management for quick URL access

Responsive viewport resizing (iPhone, iPad, Desktop presets)

Screenshot capture

API capability detection

Dark mode support

Perfect for iOS developers who need to test web content rendering, debug JavaScript, analyze network requests, and ensure accessibility compliance.