<p>I use <a target="_blank" href="https://www.charlesproxy.com/">Charles Proxy</a> pretty much nonstop when testing. As a backup I use <a target="_blank" href="https://mitmproxy.org/">mitmproxy</a>. It lacks a bit of the polished UI that Charles provides, but it is free and open source. And it gets cool points for being a command line tool.</p>
<p>These notes cover only a fraction of what mitmproxy can do, but is pretty much everything I need most days.</p>
<h3 id="install">Install</h3>
<pre><code><span class="hljs-attribute">brew</span> install mitmproxy
</code></pre><h3 id="help">Help</h3>
<pre><code>mitmproxy <span class="hljs-comment">--help</span>
</code></pre><h3 id="start-proxy-on-port-8989">Start proxy on port 8989</h3>
<pre><code>mitmproxy <span class="hljs-comment">--listen-port 8989 --ssl-insecure</span>
<span class="hljs-comment">--set console_mouse=false</span>
</code></pre><p>The <code>ssl-insecure</code> flag ignores insecure SSL sites, which is common in
a lot of the test environments I use. The <code>console_mouse</code> option makes it
easier to copy/paste output from the terminal.</p>
<h3 id="start-reverse-proxy-on-port-8989-that-directs-traffic-to-port-4001">Start reverse proxy on port 8989 that directs traffic to port 4001</h3>
<pre><code>mitmproxy —-listen-port 8989 —-ssl-insecure
-—<span class="hljs-keyword">set</span> console_mouse=<span class="hljs-literal">false</span>
-—<span class="hljs-keyword">mode</span> <span class="hljs-keyword">reverse</span>:<span class="hljs-keyword">http</span>://localhost:<span class="hljs-number">4001</span>
</code></pre><h3 id="navigation">Navigation</h3>
<ul>
<li><code>j</code>/<code>k</code>: down/up</li>
<li><code>enter</code>: select request</li>
<li><code>q</code>: back/quit</li>
<li><code>z</code>: clear requests</li>
</ul>



I use [Charles Proxy](https://www.charlesproxy.com/) pretty much nonstop when testing. As a backup I use [mitmproxy](https://mitmproxy.org/). It lacks a bit of the polished UI that Charles provides, but it is free and open source. And it gets cool points for being a command line tool.

These notes cover only a fraction of what mitmproxy can do, but is pretty much everything I need most days.

### Install

```
brew install mitmproxy
```

### Help

```
mitmproxy --help
```

### Start proxy on port 8989

```
mitmproxy --listen-port 8989 --ssl-insecure
--set console_mouse=false
```

The `ssl-insecure` flag ignores insecure SSL sites, which is common in
a lot of the test environments I use. The `console_mouse` option makes it
easier to copy/paste output from the terminal.

### Start reverse proxy on port 8989 that directs traffic to port 4001

```
mitmproxy —-listen-port 8989 —-ssl-insecure
-—set console_mouse=false
-—mode reverse:http://localhost:4001
```

### Navigation

- `j`/`k`: down/up
- `enter`: select request
- `q`: back/quit
- `z`: clear requests


How Do I Test That?

How Do I Test That?

mitmproxy cheat sheet

Install

Help

Start proxy on port 8989

Start reverse proxy on port 8989 that directs traffic to port 4001

Navigation