Walnut: Webview Debug & Test
Jiwon Park Developer Tools iPhoneiPadiPod touch
Walnut: Webview Debug & Test is a free Developer Tools app for iPhone and iPad by Jiwon Park. Rated 5.0/5 from 2 ratings. Requires iOS 18.4.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 28 MB
- Age 17+
- Updated
- Oct 15
- 2026 · v1.8.16
Screenshots
About Walnut: Webview Debug & Test
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.
What’s new
Version 1.8.16 · Updated October 15, 2026
Updated the privacy policy link.
App privacy
The developer, Jiwon Park, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
- Usage Data: Advertising Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Advertising Data
Used for: Third-Party Advertising
Alternatives to Walnut: Webview Debug & Test
Looking for apps like Walnut: Webview Debug & Test? Here are 6 similar apps on the App Store. The highest rated is WebView Inspector (5.0/5), and all 6 are free to download.
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DevInspect Browser
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WebDebug - Web debugging tool
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Walnut: Webview Debug & Test | 5.0 / 5 (2 ratings) | Free | October 15, 2026 | |
| WebView Inspector | 5.0 / 5 (2) | Free | Mar 17, 2026 | Compare |
| WebView TestKit | – | Free | May 30, 2025 | Compare |
| Tiny Web Inspector | 4.1 / 5 (8) | Free | Oct 26, 2026 | Compare |
| DevInspect Browser | – | Free | Sep 28, 2026 | Compare |
| WebDebug - Web debugging tool | 4.5 / 5 (24) | Free | Oct 10, 2026 | Compare |
| Bluetooth Developer | 4.0 / 5 (7) | Free | Nov 5, 2025 | Compare |