diff --git a/Source/Core/Core/GeckoCodeConfig.cpp b/Source/Core/Core/GeckoCodeConfig.cpp
index 541537f3a4..83350ee959 100644
--- a/Source/Core/Core/GeckoCodeConfig.cpp
+++ b/Source/Core/Core/GeckoCodeConfig.cpp
@@ -7,12 +7,131 @@
 #include <string>
 #include <vector>
 
+#include <SFML/Network/Http.hpp>
+
 #include "Common/IniFile.h"
 #include "Common/StringUtil.h"
 #include "Core/GeckoCodeConfig.h"
 
 namespace Gecko
 {
+std::vector<GeckoCode> DownloadCodes(std::string gameid, bool* succeeded)
+{
+  switch (gameid[0])
+  {
+  case 'R':
+  case 'S':
+  case 'G':
+    break;
+  default:
+    // All channels (WiiWare, VirtualConsole, etc) are identified by their first four characters
+    gameid = gameid.substr(0, 4);
+    break;
+  }
+
+  sf::Http::Request req;
+  req.setUri("/txt.php?txt=" + gameid);
+
+  sf::Http http;
+  http.setHost("geckocodes.org");
+
+  const sf::Http::Response resp = http.sendRequest(req, sf::seconds(5));
+
+  *succeeded = true;
+  if (sf::Http::Response::Ok != resp.getStatus())
+  {
+    *succeeded = false;
+    return {};
+  }
+
+  // temp vector containing parsed codes
+  std::vector<GeckoCode> gcodes;
+
+  // parse the codes
+  std::istringstream ss(resp.getBody());
+
+  std::string line;
+
+  // seek past the header, get to the first code
+  std::getline(ss, line);
+  std::getline(ss, line);
+  std::getline(ss, line);
+
+  int read_state = 0;
+  GeckoCode gcode;
+
+  while ((std::getline(ss, line).good()))
+  {
+    // Remove \r at the end of the line for files using windows line endings, std::getline only
+    // removes \n
+    line = StripSpaces(line);
+
+    if (line.empty())
+    {
+      // add the code
+      if (gcode.codes.size())
+        gcodes.push_back(gcode);
+      gcode = GeckoCode();
+      read_state = 0;
+      continue;
+    }
+
+    switch (read_state)
+    {
+    // read new code
+    case 0:
+    {
+      std::istringstream ssline(line);
+      // stop at [ character (beginning of contributor name)
+      std::getline(ssline, gcode.name, '[');
+      gcode.name = StripSpaces(gcode.name);
+      gcode.user_defined = true;
+      // read the code creator name
+      std::getline(ssline, gcode.creator, ']');
+      read_state = 1;
+    }
+    break;
+
+    // read code lines
+    case 1:
+    {
+      std::istringstream ssline(line);
+      std::string addr, data;
+      ssline >> addr >> data;
+      ssline.seekg(0);
+
+      // check if this line a code, silly, but the dumb txt file comment lines can start with
+      // valid hex chars :/
+      if (8 == addr.length() && 8 == data.length())
+      {
+        GeckoCode::Code new_code;
+        new_code.original_line = line;
+        ssline >> std::hex >> new_code.address >> new_code.data;
+        gcode.codes.push_back(new_code);
+      }
+      else
+      {
+        gcode.notes.push_back(line);
+        read_state = 2;  // start reading comments
+      }
+    }
+    break;
+
+    // read comment lines
+    case 2:
+      // append comment line
+      gcode.notes.push_back(line);
+      break;
+    }
+  }
+
+  // add the last code
+  if (gcode.codes.size())
+    gcodes.push_back(gcode);
+
+  return gcodes;
+}
+
 std::vector<GeckoCode> LoadCodes(const IniFile& globalIni, const IniFile& localIni)
 {
   std::vector<GeckoCode> gcodes;
diff --git a/Source/Core/Core/GeckoCodeConfig.h b/Source/Core/Core/GeckoCodeConfig.h
index 46eb7424c0..88e5b92df5 100644
--- a/Source/Core/Core/GeckoCodeConfig.h
+++ b/Source/Core/Core/GeckoCodeConfig.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <string>
 #include <vector>
 #include "Core/GeckoCode.h"
 
@@ -12,5 +13,6 @@ class IniFile;
 namespace Gecko
 {
 std::vector<GeckoCode> LoadCodes(const IniFile& globalIni, const IniFile& localIni);
+std::vector<GeckoCode> DownloadCodes(std::string gameid, bool* succeeded);
 void SaveCodes(IniFile& inifile, const std::vector<GeckoCode>& gcodes);
 }
diff --git a/Source/Core/DolphinWX/Cheats/GeckoCodeDiag.cpp b/Source/Core/DolphinWX/Cheats/GeckoCodeDiag.cpp
index 83733d601b..0228a378f0 100644
--- a/Source/Core/DolphinWX/Cheats/GeckoCodeDiag.cpp
+++ b/Source/Core/DolphinWX/Cheats/GeckoCodeDiag.cpp
@@ -2,7 +2,6 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
-#include <SFML/Network/Http.hpp>
 #include <sstream>
 #include <string>
 #include <vector>
@@ -160,154 +159,47 @@ void CodeConfigPanel::DownloadCodes(wxCommandEvent&)
   if (m_gameid.empty())
     return;
 
-  std::string gameid = m_gameid;
-
-  switch (m_gameid[0])
-  {
-  case 'R':
-  case 'S':
-  case 'G':
-    break;
-  default:
-    // All channels (WiiWare, VirtualConsole, etc) are identified by their first four characters
-    gameid = m_gameid.substr(0, 4);
-    break;
-  }
-
-  sf::Http::Request req;
-  req.setUri("/txt.php?txt=" + gameid);
-
-  sf::Http http;
-  http.setHost("geckocodes.org");
-
-  const sf::Http::Response resp = http.sendRequest(req, sf::seconds(5));
-
-  if (sf::Http::Response::Ok == resp.getStatus())
-  {
-    // temp vector containing parsed codes
-    std::vector<GeckoCode> gcodes;
-
-    // parse the codes
-    std::istringstream ss(resp.getBody());
-
-    std::string line;
-
-    // seek past the header, get to the first code
-    std::getline(ss, line);
-    std::getline(ss, line);
-    std::getline(ss, line);
-
-    int read_state = 0;
-    GeckoCode gcode;
-
-    while ((std::getline(ss, line).good()))
-    {
-      // Remove \r at the end of the line for files using windows line endings, std::getline only
-      // removes \n
-      line = StripSpaces(line);
-
-      if (line.empty())
-      {
-        // add the code
-        if (gcode.codes.size())
-          gcodes.push_back(gcode);
-        gcode = GeckoCode();
-        read_state = 0;
-        continue;
-      }
-
-      switch (read_state)
-      {
-      // read new code
-      case 0:
-      {
-        std::istringstream ssline(line);
-        // stop at [ character (beginning of contributor name)
-        std::getline(ssline, gcode.name, '[');
-        gcode.name = StripSpaces(gcode.name);
-        gcode.user_defined = true;
-        // read the code creator name
-        std::getline(ssline, gcode.creator, ']');
-        read_state = 1;
-      }
-      break;
-
-      // read code lines
-      case 1:
-      {
-        std::istringstream ssline(line);
-        std::string addr, data;
-        ssline >> addr >> data;
-        ssline.seekg(0);
-
-        // check if this line a code, silly, but the dumb txt file comment lines can start with
-        // valid hex chars :/
-        if (8 == addr.length() && 8 == data.length())
-        {
-          GeckoCode::Code new_code;
-          new_code.original_line = line;
-          ssline >> std::hex >> new_code.address >> new_code.data;
-          gcode.codes.push_back(new_code);
-        }
-        else
-        {
-          gcode.notes.push_back(line);
-          read_state = 2;  // start reading comments
-        }
-      }
-      break;
-
-      // read comment lines
-      case 2:
-        // append comment line
-        gcode.notes.push_back(line);
-        break;
-      }
-    }
-
-    // add the last code
-    if (gcode.codes.size())
-      gcodes.push_back(gcode);
-
-    if (gcodes.size())
-    {
-      unsigned long added_count = 0;
-
-      // append the codes to the code list
-      for (const GeckoCode& code : gcodes)
-      {
-        // only add codes which do not already exist
-        auto existing_gcodes_iter = m_gcodes.begin();
-        auto existing_gcodes_end = m_gcodes.end();
-        for (;; ++existing_gcodes_iter)
-        {
-          if (existing_gcodes_end == existing_gcodes_iter)
-          {
-            m_gcodes.push_back(code);
-            ++added_count;
-            break;
-          }
-
-          // code exists
-          if (*existing_gcodes_iter == code)
-            break;
-        }
-      }
-
-      wxMessageBox(wxString::Format(_("Downloaded %lu codes. (added %lu)"),
-                                    (unsigned long)gcodes.size(), added_count));
-
-      // refresh the list
-      UpdateCodeList();
-    }
-    else
-    {
-      wxMessageBox(_("File contained no codes."));
-    }
-  }
-  else
+  bool succeeded;
+  std::vector<GeckoCode> gcodes = Gecko::DownloadCodes(m_gameid, &succeeded);
+  if (!succeeded)
   {
     WxUtils::ShowErrorDialog(_("Failed to download codes."));
+    return;
   }
+
+  if (!gcodes.size())
+  {
+    wxMessageBox(_("File contained no codes."));
+    return;
+  }
+
+  unsigned long added_count = 0;
+
+  // append the codes to the code list
+  for (const GeckoCode& code : gcodes)
+  {
+    // only add codes which do not already exist
+    auto existing_gcodes_iter = m_gcodes.begin();
+    auto existing_gcodes_end = m_gcodes.end();
+    for (;; ++existing_gcodes_iter)
+    {
+      if (existing_gcodes_end == existing_gcodes_iter)
+      {
+        m_gcodes.push_back(code);
+        ++added_count;
+        break;
+      }
+
+      // code exists
+      if (*existing_gcodes_iter == code)
+        break;
+    }
+  }
+
+  wxMessageBox(wxString::Format(_("Downloaded %lu codes. (added %lu)"),
+                                (unsigned long)gcodes.size(), added_count));
+
+  // refresh the list
+  UpdateCodeList();
 }
 }