Postman Settings and Proxy

Postman works well with default settings, yet real projects often need adjustments. A slow server may need a longer timeout. A company network may require a proxy. A tired pair of eyes may prefer a dark theme. The Settings window collects these controls in one place.

Open the Settings Window

Click the gear icon in the top-right corner and choose Settings. A window opens with tabs on the left side. Each tab groups related options, so you rarely need to hunt for a switch.

  SETTINGS
  ├── General        timeouts, redirects, SSL checks, size limits
  ├── Themes         light and dark appearance
  ├── Shortcuts      keyboard commands
  ├── Data           import and export of local data
  ├── Proxy          network routing options
  ├── Certificates   CA and client certificates
  └── Update         version and update behavior

Important General Options

Option	What It Controls	When to Change It
Request timeout	How long Postman waits for a reply before giving up	Slow reports or large downloads need more time
Automatically follow redirects	Whether Postman follows 3xx responses	Turn off to inspect the redirect itself
SSL certificate verification	Whether Postman checks server certificates	Turn off only for trusted local test servers
Max response size	The largest body Postman will download	Raise it for big data exports
Send anonymous usage data	Sharing of product usage statistics	Follow your personal or company preference

A timeout value of zero means Postman waits without a limit. Choose a sensible number, such as 30000 milliseconds, so a frozen server does not block your work.

Theme and Layout

The Themes tab offers light, dark, and system-matched appearances. Layout buttons in the bottom bar switch the response panel between the bottom and the right side. A right-side panel suits wide screens, and a bottom panel suits laptops.

Why a Proxy Matters

A proxy is a middleman server. Some offices route all web traffic through one so the company can filter and log it. Without the right proxy settings, Postman cannot reach the internet from inside such a network.

  WITHOUT PROXY RULES               WITH A COMPANY PROXY

  Postman ──X──► Internet           Postman ──► Proxy server ──► Internet
  (blocked by the office network)   (allowed and logged by the company)

Configure a Proxy

1. Open Settings and select the Proxy tab.
2. Choose Use system proxy to follow your computer's network settings.
3. Choose Add a custom proxy configuration to type values by hand.
4. Enter the proxy server address and port, such as proxy.mycompany.com and 8080.
5. Add a username and password when the proxy requires them.
6. List addresses that should skip the proxy in the bypass field, for example localhost.

Ask your IT team for the correct address. Guessing leads to confusing connection errors.

Symptoms of Proxy Trouble

• Every request fails with a connection or timeout error, while a browser works.
• Requests to public sites succeed and requests to internal servers fail, or the reverse.
• Error text mentions a tunnel, a 407 status, or proxy authentication.

A 407 status means the proxy demands credentials. Add the username and password in the proxy settings.

Local Development Tip

Requests to localhost should skip a corporate proxy. Add localhost and 127.0.0.1 to the bypass list so local servers answer directly.

Keep Settings Healthy

• Record custom settings in a team document so new members can match them.
• Reset a changed option to its default when behavior turns strange.
• Keep Postman updated through the Update tab to receive fixes and new features.
• Avoid sharing screenshots of the Proxy tab, because it can contain credentials.

Key Points

• The Settings window gathers timeouts, redirects, themes, proxies, and certificates.
• A request timeout protects you from endless waiting.
• Disable SSL verification only for servers you control.
• Proxy settings let Postman work inside company networks.
• A bypass list keeps local servers off the proxy.