Install HTTPGlass

Requirements

• macOS 14 Sonoma or later
• An Apple silicon or Intel Mac — the app is a universal binary

Install

1. Download HTTPGlass. It’s a notarized DMG, sold outside the App Store.
2. Open the DMG and drag HTTPGlass into Applications.
3. Open HTTPGlass from Applications.

First launch

HTTPGlass asks two things before you capture anything.

Diagnostics. The first sheet asks whether to share anonymous usage and crash data. It’s optional, never includes captured traffic, and you can change it later in Settings → Privacy.

Setup Assistant. Three steps, in the order they depend on each other:

1. Trust the root certificate. Click Install & Trust. macOS asks you to authorize the change once. Without this, HTTPS requests still appear but with nothing readable inside them. You can skip it and capture without reading HTTPS. Details on Root certificate.
2. Start capturing. Click Start Capturing. HTTPGlass points your Mac’s network services at its local proxy, and puts them back when you stop, quit, or if the app is killed. Details on How capture works.
3. Load a page. Open any site in a browser. The step completes itself when the first request arrives, and the assistant closes.

Each step reports what’s actually true, not whether you pressed its button: a certificate can be installed but not trusted, and the proxy can be listening with no network service pointed at it. If a step can’t finish, the assistant says why underneath it.

Skip for Now closes the assistant. Everything it does is also in the main window: the Certificate item in the sidebar, and Start in the toolbar.

Updates

HTTPGlass checks httpglass.com for a newer version once a day. When one is out, an Update button appears in the toolbar; it downloads the new version, and you drag it into Applications to replace the old one. Settings → General → Version shows the installed version.

Next

How capture works →