diff --git a/README.md b/README.md
index eb15e69e2..3263a1e93 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ You can uninstall and list packages with the `uninstaller` command.
 
 ### Working with DMG images
 
-DMG images can be attached and deattached from inside `darling shell` with `hdiutil`. This is how you can install Xcode along with its toolchain and SDKs (note that Xcode itself doesn't run yet):
+DMG images can be attached and detached from inside `darling shell` with `hdiutil`. This is how you can install Xcode along with its toolchain and SDKs (note that Xcode itself doesn't run yet):
 
 ````
 Darling [~]$ hdiutil attach Xcode_7.2.dmg
diff --git a/src/libsimple/src/lock.c b/src/libsimple/src/lock.c
index 58e796e6c..3d9bdd420 100644
--- a/src/libsimple/src/lock.c
+++ b/src/libsimple/src/lock.c
@@ -226,7 +226,7 @@ void libsimple_once(libsimple_once_t* _once, libsimple_once_callback callback, v
 				return;
 			}; // not reached
 			case libsimple_once_state_triggered_uncontended: {
-				// somebody is already perfoming the callback;
+				// somebody is already performing the callback;
 				// now we're waiting, so let's update the state for that
 				libsimple_once_debug("someone is already performing the callback with no waiters; becoming first waiter...");
 				exchanged = atomic_compare_exchange_strong_explicit(&once->state, &prev, libsimple_once_state_triggered_contended, memory_order_acq_rel, memory_order_acquire);
diff --git a/src/libsystem_coreservices/dirhelper.c b/src/libsystem_coreservices/dirhelper.c
index 57edab691..f22f8213d 100644
--- a/src/libsystem_coreservices/dirhelper.c
+++ b/src/libsystem_coreservices/dirhelper.c
@@ -82,6 +82,6 @@ int _set_user_dir_suffix(const char* suffix) {
 	pthread_mutex_lock(&dir_suffix_lock);
 	dir_suffix = suffix;
 	pthread_mutex_unlock(&dir_suffix_lock);
-	return 1; // weird, it's suppossed to return non-zero on success (maybe it's actually a bool?)
+	return 1; // weird, it's supposed to return non-zero on success (maybe it's actually a bool?)
 };
 
diff --git a/src/startup/mldr/commpage.c b/src/startup/mldr/commpage.c
index cd0bdd5f2..d9a7aea96 100644
--- a/src/startup/mldr/commpage.c
+++ b/src/startup/mldr/commpage.c
@@ -60,7 +60,7 @@ void commpage_setup(bool _64bit)
 	logcpus = (uint8_t*)CGET(_COMM_PAGE_LOGICAL_CPUS);
 	*physcpus = *logcpus = *ncpus;
 
-	// I'm not sure if Linux has seperate page sizes for kernel and user space.
+	// I'm not sure if Linux has separate page sizes for kernel and user space.
 	// Apple's code uses left shift logical (1 << user_page_shift) to get the page size value.
 	// Since it's very unlikely that the page size won't be a power of 2, we can use __builtin_ctzl()
 	// as a substitute for log2().
diff --git a/src/startup/mldr/elfcalls/threads.c b/src/startup/mldr/elfcalls/threads.c
index 1c7525a50..ce20b1430 100644
--- a/src/startup/mldr/elfcalls/threads.c
+++ b/src/startup/mldr/elfcalls/threads.c
@@ -58,7 +58,7 @@ struct arg_struct
 	uintptr_t arg2; // `stack_addr` for normal threads; `flags` for workqueues
 	uintptr_t arg3; // `flags` for normal threads; `nkevents` for workqueues
 	union {
-		void* _backwards_compat; // kept around to avoid modifiying assembly
+		void* _backwards_compat; // kept around to avoid modifying assembly
 		int port;
 	};
 	unsigned long pth_obj_size;
@@ -230,7 +230,7 @@ static void* darling_thread_entry(void* p)
 
 	// let's check-in with darlingserver on this new thread
 	int dummy_stack_variable;
-	// the lifetime pipe fd is ignored as the proces should already have been registered
+	// the lifetime pipe fd is ignored as the process should already have been registered
 	if (dserver_rpc_explicit_checkin(t_server_socket, false, &dummy_stack_variable, -1) < 0) {
 		// we can't do ANYTHING if darlingserver doesn't acknowledge us successfully
 		abort();
diff --git a/src/xtrace/lock.c b/src/xtrace/lock.c
index d3b929a00..bbb0bd950 100644
--- a/src/xtrace/lock.c
+++ b/src/xtrace/lock.c
@@ -169,7 +169,7 @@ void xtrace_once(xtrace_once_t* _once, xtrace_once_callback callback) {
 				return;
 			}; // not reached
 			case xtrace_once_state_triggered_uncontended: {
-				// somebody is already perfoming the callback;
+				// somebody is already performing the callback;
 				// now we're waiting, so let's update the state for that
 				xtrace_once_debug("someone is already performing the callback with no waiters; becoming first waiter...");
 				exchanged = atomic_compare_exchange_strong_explicit(&once->state, &prev, xtrace_once_state_triggered_contended, memory_order_acq_rel, memory_order_acquire);
diff --git a/tools/rename-target b/tools/rename-target
index 9483df190..6ed25e818 100755
--- a/tools/rename-target
+++ b/tools/rename-target
@@ -4,7 +4,7 @@ import argparse
 import os
 import re
 
-parser = argparse.ArgumentParser(description="Rename a CMake target. Opperates on the current directory.")
+parser = argparse.ArgumentParser(description="Rename a CMake target. Operates on the current directory.")
 
 parser.add_argument("old", help="the target to rename", type=str)
 parser.add_argument("new", help="the new target name", type=str)
diff --git a/tools/stripcomments b/tools/stripcomments
index d23cf7125..4d8daa7ee 100755
--- a/tools/stripcomments
+++ b/tools/stripcomments
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # This cool can be used to strip most of the copyrightable material from header files.
-# Remember that all files processed with this script stil need to be checked manually!
+# Remember that all files processed with this script still need to be checked manually!
 
 gcc -DNS_BLOCKS_AVAILABLE -fpreprocessed -dD -E "$1" | egrep -v '# [[:digit:]]' | sed -r 's/APPKIT_EXTERN/EXTERN_C/;s/ ?(NS_AVAILABLE(_MAC)?|NS_DEPRECATED_MAC|NS_CLASS_AVAILABLE)\([^)]+\)//;s/#pragma mark.*//;s/NS_AUTOMATED_REFCOUNT_WEAK_UNAVAILABLE//;s/NS_RETURNS_INNER_POINTER//;s/NS_FORMAT_FUNCTION\(([0-9]+), ?([0-9]+)\)//'