diff --git a/modules/juce_audio_processors/juce_audio_processors.cpp b/modules/juce_audio_processors/juce_audio_processors.cpp
index 1f7abb3dca..4ba5e87740 100644
--- a/modules/juce_audio_processors/juce_audio_processors.cpp
+++ b/modules/juce_audio_processors/juce_audio_processors.cpp
@@ -34,7 +34,9 @@
 
 #define JUCE_CORE_INCLUDE_NATIVE_HEADERS 1
 #define JUCE_CORE_INCLUDE_OBJC_HELPERS 1
-#define JUCE_GUI_BASICS_INCLUDE_XHEADERS 1
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
+ #define JUCE_GUI_BASICS_INCLUDE_XHEADERS 1
+#endif
 #define JUCE_GUI_BASICS_INCLUDE_SCOPED_THREAD_DPI_AWARENESS_SETTER 1
 
 #include "juce_audio_processors.h"
@@ -241,9 +243,11 @@ struct AutoResizingNSViewComponentWithParent  : public AutoResizingNSViewCompone
 #include "format_types/juce_VSTPluginFormat.cpp"
 #include "format_types/juce_VST3PluginFormat.cpp"
 #include "format_types/juce_AudioUnitPluginFormat.mm"
-#include "scanning/juce_KnownPluginList.cpp"
-#include "scanning/juce_PluginDirectoryScanner.cpp"
-#include "scanning/juce_PluginListComponent.cpp"
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
+ #include "scanning/juce_KnownPluginList.cpp"
+ #include "scanning/juce_PluginDirectoryScanner.cpp"
+ #include "scanning/juce_PluginListComponent.cpp"
+#endif
 #include "processors/juce_AudioProcessorParameterGroup.cpp"
 #include "utilities/juce_AudioProcessorParameterWithID.cpp"
 #include "utilities/juce_RangedAudioParameter.cpp"
@@ -251,6 +255,13 @@ struct AutoResizingNSViewComponentWithParent  : public AutoResizingNSViewCompone
 #include "utilities/juce_AudioParameterInt.cpp"
 #include "utilities/juce_AudioParameterBool.cpp"
 #include "utilities/juce_AudioParameterChoice.cpp"
-#include "utilities/juce_ParameterAttachments.cpp"
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
+ #include "utilities/juce_ParameterAttachments.cpp"
+#endif
 #include "utilities/juce_AudioProcessorValueTreeState.cpp"
 #include "utilities/juce_PluginHostType.cpp"
+
+#if JUCE_AUDIOPROCESSOR_NO_GUI
+// commonly used classes in DSP code
+namespace juce { Colour::Colour(juce::uint32) noexcept {} }
+#endif
diff --git a/modules/juce_audio_processors/juce_audio_processors.h b/modules/juce_audio_processors/juce_audio_processors.h
index e543a92fdb..4b3c999c0c 100644
--- a/modules/juce_audio_processors/juce_audio_processors.h
+++ b/modules/juce_audio_processors/juce_audio_processors.h
@@ -115,7 +115,11 @@
 #endif
 
 //==============================================================================
-#include "processors/juce_AudioProcessorEditor.h"
+#if JUCE_AUDIOPROCESSOR_NO_GUI
+namespace juce { class AudioProcessor; }
+#else
+ #include "processors/juce_AudioProcessorEditor.h"
+#endif
 #include "processors/juce_AudioProcessorListener.h"
 #include "processors/juce_AudioProcessorParameter.h"
 #include "processors/juce_AudioProcessorParameterGroup.h"
@@ -123,7 +127,9 @@
 #include "processors/juce_PluginDescription.h"
 #include "processors/juce_AudioPluginInstance.h"
 #include "processors/juce_AudioProcessorGraph.h"
-#include "processors/juce_GenericAudioProcessorEditor.h"
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
+ #include "processors/juce_GenericAudioProcessorEditor.h"
+#endif
 #include "format/juce_AudioPluginFormat.h"
 #include "format/juce_AudioPluginFormatManager.h"
 #include "scanning/juce_KnownPluginList.h"
@@ -140,6 +146,8 @@
 #include "utilities/juce_AudioParameterInt.h"
 #include "utilities/juce_AudioParameterBool.h"
 #include "utilities/juce_AudioParameterChoice.h"
-#include "utilities/juce_ParameterAttachments.h"
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
+ #include "utilities/juce_ParameterAttachments.h"
+#endif
 #include "utilities/juce_AudioProcessorValueTreeState.h"
 #include "utilities/juce_PluginHostType.h"
diff --git a/modules/juce_audio_processors/processors/juce_AudioProcessor.h b/modules/juce_audio_processors/processors/juce_AudioProcessor.h
index 849b77d3cc..14d1d37575 100644
--- a/modules/juce_audio_processors/processors/juce_AudioProcessor.h
+++ b/modules/juce_audio_processors/processors/juce_AudioProcessor.h
@@ -1228,7 +1228,9 @@ public:
     struct TrackProperties
     {
         String name;    // The name of the track - this will be empty if the track name is not known
+       #if ! JUCE_AUDIOPROCESSOR_NO_GUI
         Colour colour;  // The colour of the track - this will be transparentBlack if the colour is not known
+       #endif
 
         // other properties may be added in the future
     };
diff --git a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
index 2d4bfac237..906aa8a3b1 100644
--- a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
+++ b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
@@ -483,6 +483,7 @@ void AudioProcessorValueTreeState::timerCallback()
                                 : jlimit (50, 500, getTimerInterval() + 20));
 }
 
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
 //==============================================================================
 template <typename Attachment, typename Control>
 std::unique_ptr<Attachment> makeAttachment (const AudioProcessorValueTreeState& stateToUse,
@@ -516,6 +517,7 @@ AudioProcessorValueTreeState::ButtonAttachment::ButtonAttachment (AudioProcessor
     : attachment (makeAttachment<ButtonParameterAttachment> (stateToUse, parameterID, button))
 {
 }
+#endif
 
 //==============================================================================
 //==============================================================================
diff --git a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h
index 156e3ea002..4266b0be51 100644
--- a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h
+++ b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h
@@ -429,6 +429,7 @@ public:
         friend class AudioProcessorValueTreeState::ParameterAdapter;
     };
 
+   #if ! JUCE_AUDIOPROCESSOR_NO_GUI
     //==============================================================================
     /** An object of this class maintains a connection between a Slider and a parameter
         in an AudioProcessorValueTreeState.
@@ -496,6 +497,7 @@ public:
         std::unique_ptr<ButtonParameterAttachment> attachment;
         JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ButtonAttachment)
     };
+   #endif
 
 private:
     //==============================================================================
diff --git a/modules/juce_audio_processors/utilities/juce_PluginHostType.cpp b/modules/juce_audio_processors/utilities/juce_PluginHostType.cpp
index c7092044a5..bb5b3c3de9 100644
--- a/modules/juce_audio_processors/utilities/juce_PluginHostType.cpp
+++ b/modules/juce_audio_processors/utilities/juce_PluginHostType.cpp
@@ -70,6 +70,7 @@ bool PluginHostType::isInAAXAudioSuite (AudioProcessor& processor)
     return false;
 }
 
+#if ! JUCE_AUDIOPROCESSOR_NO_GUI
 Image PluginHostType::getHostIcon (int size) const
 {
     ignoreUnused (size);
@@ -86,6 +87,7 @@ Image PluginHostType::getHostIcon (int size) const
 
     return Image();
 }
+#endif
 
 const char* PluginHostType::getHostDescription() const noexcept
 {
diff --git a/modules/juce_audio_processors/utilities/juce_PluginHostType.h b/modules/juce_audio_processors/utilities/juce_PluginHostType.h
index b549a3041e..04956582ee 100644
--- a/modules/juce_audio_processors/utilities/juce_PluginHostType.h
+++ b/modules/juce_audio_processors/utilities/juce_PluginHostType.h
@@ -202,8 +202,10 @@ public:
     bool isInterAppAudioConnected() const;
     /** Switches to the host application when Inter-App Audio is used on iOS. */
     void switchToHostApplication() const;
+   #if ! JUCE_AUDIOPROCESSOR_NO_GUI
     /** Gets the host app's icon when Inter-App Audio is used on iOS. */
     Image getHostIcon (int size) const;
+   #endif
 
     //==============================================================================
     /** Returns the complete absolute path of the host application executable. */