Update: 12 Jan 2026

Proxyman 6.4.0 has introduced automatic setup for Android Emulators. You can now capture HTTPS traffic from Flutter apps on Android Emulators with just a few clicks.

Original Post

If you've tried capturing HTTPS traffic from a Flutter app on Android Emulators, you know the pain. Unlike iOS, Android makes this surprisingly difficult — and Flutter adds another layer of complexity on top.

This guide shows you how to do it properly with Proxyman 6.4.0.

The Problem

Debugging network calls from Flutter on Android Emulators is tricky for a few reasons:

1. Flutter ignores system proxy settings — Dart's HttpClient doesn't use the system proxy by default, so setting up a proxy on your emulator won't help.
2. Android's certificate trust — Since Android 7, user-installed certificates aren't trusted by default. You need to modify your app's network security config.
3. Manual setup is tedious — Installing certificates via adb, configuring WiFi proxy, editing XML files... it's a lot of steps that can go wrong.

Proxyman 6.4.0 simplifies this with automatic setup for Android Emulators, but you still need to configure your Flutter code to route traffic through the proxy.

Prerequisites

• Proxyman macOS 6.4.0 or later
• Android Studio with an Android Emulator (API 24+)
• Your Flutter project

✅ New Solution

1. Open your Android Emulator in Android Studio - make sure it's a Google APIs version, not a Play Store version.
2. In Proxyman, go to Certificate Menu → Install Certificate on Android → Emulator
3. Make sure the select "Install Proxyman VPN" checkbox is checked.
4. Click on the "Override all Emulators" button.

That's it. No manual adb commands, no navigating through Android Settings.

4. At this point, a new local VPN will be installed on your Android Emulator. Let's click on the "Start" button to start the VPN.
5. You should see the VPN is running and the status is "Connected".

6. Now, you can run your Flutter app on the Android Emulator.
7. You should see the HTTPS traffic is captured by Proxyman.

⚠️ Old Solution

If you're using Proxyman 6.3.0 or earlier, you need to follow the old solution.

Step 1: Configure Proxy in Your Flutter Code

Flutter doesn't respect system proxy settings, so you need to manually configure the HTTP client in your code.

Here's how to do it depending on which HTTP library you're using:

Using http package

import 'dart:io';
import 'package:http/io_client.dart';

// Use your Mac's IP address (shown in Proxyman's Android setup guide)
// For emulator, you can use 10.0.2.2 which points to your host machine
String proxy = '10.0.2.2:9090';

HttpClient httpClient = HttpClient();

httpClient.findProxy = (uri) {
return "PROXY $proxy;";
};

// Allow Proxyman's certificate
httpClient.badCertificateCallback = 
((X509Certificate cert, String host, int port) => true);

IOClient myClient = IOClient(httpClient);

// Now use myClient for your requests
var response = await myClient.get(Uri.parse('https://api.example.com/data'));

Using Dio

import 'dart:io';
import 'package:dio/dio.dart';
import 'package:dio/io.dart';

String proxy = '10.0.2.2:9090';

Dio dio = Dio();

dio.httpClientAdapter = IOHttpClientAdapter(
createHttpClient: () {
  final client = HttpClient();
  client.findProxy = (url) => 'PROXY $proxy';
  client.badCertificateCallback = (cert, host, port) => true;
  return client;
},
);

// Now use dio for your requests
var response = await dio.get('https://api.example.com/data');

Step 2: Set Up Android Emulator with Proxyman

Now the easy part. Proxyman 6.4.0 can automatically configure your Android Emulator:

1. Open your Android Emulator in Android Studio
2. In Proxyman, go to Certificate Menu → Install Certificate on Android → Emulator
3. Click on the "Override all Emulators" button.

That's it. No manual adb commands, no navigating through Android Settings.

Step 4: Run Your Flutter App

1. Make sure Proxyman is running
2. Run your Flutter app on the Android Emulator:

flutter run

3. Trigger some network requests in your app
4. Check Proxyman — you should see the HTTPS traffic from your Flutter app

Don't forget to enable SSL Proxying for the domains you want to inspect. Right-click on a domain in Proxyman and select "Enable SSL Proxying".

Troubleshooting

I see traffic but it shows SSL errors

• Make sure you added the network security config in Step 2
• Verify the certificate is installed: Android Settings → Security → Encryption & Credentials → Trusted Credentials → User tab
• Restart the emulator and try again

No traffic appears in Proxyman

• Double-check your proxy configuration in Flutter code
• Make sure you're using 10.0.2.2:9090 (not localhost)
• Verify Proxyman is running and listening on port 9090

App crashes or network requests fail

• Check that badCertificateCallback is set correctly
• Make sure your emulator has internet access (try opening Chrome in the emulator)

Summary

Capturing HTTPS from Flutter on Android Emulators requires:

1. Configure proxy in your Flutter HTTP client code
2. Add network security config to trust user certificates
3. Use Proxyman's automatic setup for Android Emulator
4. Run your app and inspect traffic

Once set up, you can use all of Proxyman's debugging tools — Breakpoint, Map Local, Scripting — to test and debug your Flutter app's network layer.

What's Next?

• Capture HTTPS from Flutter iOS apps — Similar guide for iOS Simulator and devices
• Android Emulator setup guide — Detailed walkthrough for native Android apps
• Capture HTTPS from React Native apps — If you're also working with React Native
• Proxyman Flutter Documentation — Full technical reference

Proxyman is a high-performance macOS/Windows/Linux app that helps developers capture and inspect HTTP/HTTPS traffic from iOS, Android, simulators, and emulators.

Get it at https://proxyman.com