Hammer: HTTP Stream Inspector
Capture Web Traffic
Free · Designed for iPad. Not verified for macOS.
Hammer is a professional HTTP and HTTPS debugging toolkit for developers, QA engineers, mobile teams, and technical users who need a clear way to inspect, analyze, and troubleshoot network traffic on iPhone and iPad.
Whether you are testing an API, debugging a mobile app, checking request headers, reviewing response data, or exporting sessions for deeper analysis, Hammer helps you understand what is happening between your app, website, and backend services.
Designed for local-first network inspection, Hammer keeps captured data on your device by default. Requests, responses, headers, cookies, and session history remain local unless you choose to export or share them.
How Hammer Works:
Hammer uses Apple's public Network Extension framework and a Packet Tunnel Provider to enable on-device traffic capture.
When you tap Start and approve the iOS system configuration prompt, Hammer creates a local Packet Tunnel. Traffic included in the active capture session is routed through Hammer's local proxy process on the same device, where requests and responses can be inspected and displayed.
The Packet Tunnel does not connect your traffic to a remote VPN server. Hammer does not provide anonymous browsing, change your virtual location, or hide your public IP address. iOS displays VPN-related permission text and may show a VPN status indicator because Apple manages Packet Tunnel Provider configurations through its VPN configuration infrastructure.
Key Features:
Live Traffic Capture
Capture HTTP and HTTPS requests in real time. Review method, host, path, status code, protocol, timing, size, and request details in a clean debugging interface.
Detailed Request Inspector
Inspect URL parameters, request and response headers, message bodies, status codes, timing metrics, and content types.
HTTPS Debugging
Use optional certificate-based HTTPS inspection in development, testing, or other authorized environments. Certificate installation and trust are controlled by the user through iOS Settings.
Request History
Keep capture sessions organized locally so you can revisit traffic, compare results, and investigate issues after testing.
Rules and Filters
Manage rules for bypassing hosts, blocking traffic, rewriting requests, mapping responses, and controlling traffic during debugging.
HAR Export
Export captured sessions as HAR files for desktop analysis, bug reports, team collaboration, or long-term debugging records.
Local Proxy Workflow
Use Hammer's on-device Packet Tunnel and local proxy workflow to inspect traffic from apps, browsers, and services you are authorized to analyze.
Clean Debugging Interface
Work with readable request lists, structured detail views, protocol statistics, favorites, and practical tools for repeated debugging.
Local-First Privacy
Captured network content is processed and stored locally by default. Hammer does not require an account, and the Packet Tunnel does not upload captured traffic to a remote VPN server. Data leaves your device only when you explicitly export, share, or submit it through a user-initiated action.
Hammer is useful for:
• Debugging mobile app API requests
• Inspecting HTTP and HTTPS traffic
• Reviewing headers, cookies, and response bodies
• Testing backend services and REST APIs
• Checking status codes, redirects, and timing
• Exporting HAR files for issue reports
• Managing traffic rules during development
• Investigating network behavior during QA testing
Hammer is intended for legitimate development, testing, and debugging workflows. Use it only with apps, websites, services, and network traffic that you own or have permission to inspect.
Ratings & Reviews
1 - New Breakpoint Rules let you pause matching requests or responses before forwarding, then choose to continue or drop them.
2 - New Script Rules let you transform matching requests and responses with custom JavaScript.
3 - Improved rule management with search, enable/disable controls, editing, deletion, and clearer rule summaries.
4 - General stability and usability improvements.
The developer, BARATHEON TECHNOLOGY LIMITED, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BARATHEON TECHNOLOGY LIMITED
- Size
- 265.4 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Hammer.DevTeam