diff --git a/platform_mac/mac_4ed.mm b/platform_mac/mac_4ed.mm
index 564d3cd5..ba62017d 100644
--- a/platform_mac/mac_4ed.mm
+++ b/platform_mac/mac_4ed.mm
@@ -193,6 +193,9 @@ struct Mac_Vars {
     u32 clipboard_change_count;
     b32 next_clipboard_is_self;
     
+    Arena clip_post_arena;
+    String_Const_u8 clip_post;
+    
     NSWindow *window;
     FCoder_View *view;
     f32 screen_scale_factor;
@@ -480,8 +483,8 @@ mac_read_clipboard_contents(Arena *scratch){
     {
         NSPasteboard *board = [NSPasteboard generalPasteboard];
         NSString *utf8_type = @"public.utf8-plain-text";
-        NSArray *array = [NSArray arrayWithObjects:utf8_type, nil];
-        NSString *has_string = [board availableTypeFromArray:array];
+        NSArray *types_array = [NSArray arrayWithObjects:utf8_type, nil];
+        NSString *has_string = [board availableTypeFromArray:types_array];
         if (has_string != nil){
             NSData *data = [board dataForType:utf8_type];
             if (data != nil){
@@ -504,6 +507,25 @@ mac_read_clipboard_contents(Arena *scratch){
     return(result);
 }
 
+function void
+mac_post_clipboard(Arena *scratch, char *text, i32 len){
+    NSPasteboard *board = [NSPasteboard generalPasteboard];
+    
+    NSString *utf8_type = @"public.utf8-plain-text";
+    NSArray<NSString*> *types_array = [NSArray arrayWithObjects:utf8_type, nil];
+    [board declareTypes:types_array
+            owner:nil];
+    
+    NSString *paste_string = [[NSString alloc] initWithBytes:text
+            length:len
+            encoding:NSUTF8StringEncoding];
+    [board setString:paste_string
+            forType:utf8_type];
+    [paste_string release];
+    
+    mac_vars.next_clipboard_is_self = true;
+}
+
 #if defined(FRED_INTERNAL)
 function inline void
 mac_profile(char *name, u64 begin, u64 end){
@@ -659,6 +681,8 @@ i = 1, mac_profile(name, begin, system_now_time()))
             input.clipboard = mac_vars.clipboard_contents;
         }
         
+        mac_vars.clip_post.size = 0;
+        
         Application_Step_Result result = {};
         MacProfileScope("Step"){
             // NOTE(yuval): Application Core Update
@@ -675,6 +699,14 @@ i = 1, mac_profile(name, begin, system_now_time()))
             }
         }
         
+        // NOTE(yuval): Post new clipboard content
+        MacProfileScope("Post Clipboard"){
+            if (mac_vars.clip_post.size > 0){
+                Scratch_Block scratch(mac_vars.tctx, Scratch_Share);
+                mac_post_clipboard(scratch, (char*)mac_vars.clip_post.str, (i32)mac_vars.clip_post.size);
+            }
+        }
+        
         MacProfileScope("Render"){
             // NOTE(yuval): Render
             renderer->render(renderer, &target);
diff --git a/platform_mac/mac_4ed_functions.mm b/platform_mac/mac_4ed_functions.mm
index aeeaab27..9076a100 100644
--- a/platform_mac/mac_4ed_functions.mm
+++ b/platform_mac/mac_4ed_functions.mm
@@ -431,7 +431,21 @@ system_sleep_sig(){
 
 function
 system_post_clipboard_sig(){
-    NotImplemented;
+    Arena *arena = &mac_vars.clip_post_arena;
+    if (arena->base_allocator == 0){
+        *arena = make_arena_system();
+    } else{
+        linalloc_clear(arena);
+    }
+    
+    mac_vars.clip_post.str = push_array(arena, u8, str.size + 1);
+    if (mac_vars.clip_post.str != 0){
+        block_copy(mac_vars.clip_post.str, str.str, str.size);
+        mac_vars.clip_post.str[str.size] = 0;
+        mac_vars.clip_post.size = str.size;
+    } else{
+        // NOTE(yuval): Failed to allocate buffer for clipboard post
+    }
 }
 
 ////////////////////////////////