diff --git a/common/stringop.c b/common/stringop.c
index 186fe1211..613244585 100644
--- a/common/stringop.c
+++ b/common/stringop.c
@@ -342,7 +342,7 @@ char *cmdsep(char **stringp, const char *delim) {
 	char *head = *stringp + strspn(*stringp, delim);
 	// Find end token
 	char *tail = *stringp += strcspn(*stringp, delim);
-	// Set stringp to begining of next token
+	// Set stringp to beginning of next token
 	*stringp += strspn(*stringp, delim);
 	// Set stringp to null if last token
 	if (!**stringp) *stringp = NULL;
diff --git a/include/ipc.h b/include/ipc.h
index 06053190a..21da2be3b 100644
--- a/include/ipc.h
+++ b/include/ipc.h
@@ -11,7 +11,7 @@ enum ipc_command_type {
 	IPC_GET_BAR_CONFIG = 6,
 	IPC_GET_VERSION = 7,
 	IPC_GET_INPUTS = 8,
-	// Events send from sway to clients. Events have the higest bits set.
+	// Events send from sway to clients. Events have the highest bits set.
 	IPC_EVENT_WORKSPACE = (1 << (31 - 0)),
 	IPC_EVENT_OUTPUT = (1 << (31 - 1)),
 	IPC_EVENT_MODE = (1 << (31 - 2)),
diff --git a/sway/commands.c b/sway/commands.c
index 3cc840621..c1009f854 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -758,7 +758,7 @@ static struct cmd_results *cmd_mode(int argc, char **argv) {
 			break;
 		}
 	}
-	// Create mode if it doesnt exist
+	// Create mode if it doesn't exist
 	if (!mode && mode_make) {
 		mode = malloc(sizeof*mode);
 		mode->name = strdup(mode_name);
@@ -1917,7 +1917,7 @@ static struct cmd_results *_do_split(int argc, char **argv, int layout) {
 	}
 	swayc_t *focused = get_focused_container(&root_container);
 
-	// Case of floating window, dont split
+	// Case of floating window, don't split
 	if (focused->is_floating) {
 		return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 	}
@@ -2164,7 +2164,7 @@ static struct cmd_results *cmd_workspace(int argc, char **argv) {
 			sway_log(L_DEBUG, "Assigning workspace %s to output %s", argv[0], argv[2]);
 			list_add(config->workspace_outputs, wso);
 			if (!config->reading) {
-				// TODO: Move workspace to output. (dont do so when reloading)
+				// TODO: Move workspace to output. (don't do so when reloading)
 			}
 		}
 	}
diff --git a/sway/container.c b/sway/container.c
index 5d43b418b..d82a1e213 100644
--- a/sway/container.c
+++ b/sway/container.c
@@ -146,7 +146,7 @@ swayc_t *new_output(wlc_handle handle) {
 		ws_name = workspace_next_name(output->name);
 	}
 
-	// create and initilize default workspace
+	// create and initialize default workspace
 	swayc_t *ws = new_workspace(output, ws_name);
 	ws->is_focused = true;
 
diff --git a/sway/focus.c b/sway/focus.c
index 0c9719b09..93391c63f 100644
--- a/sway/focus.c
+++ b/sway/focus.c
@@ -24,7 +24,7 @@ static void update_focus(swayc_t *c) {
 		parent->focused = c;
 
 		switch (c->type) {
-		// Shouldnt happen
+		// Shouldn't happen
 		case C_ROOT: return;
 
 		// Case where output changes
diff --git a/sway/handlers.c b/sway/handlers.c
index ee88b247b..f96a8e9de 100644
--- a/sway/handlers.c
+++ b/sway/handlers.c
@@ -166,7 +166,7 @@ static void handle_output_resolution_change(wlc_handle output, const struct wlc_
 
 static void handle_output_focused(wlc_handle output, bool focus) {
 	swayc_t *c = swayc_by_handle(output);
-	// if for some reason this output doesnt exist, create it.
+	// if for some reason this output doesn't exist, create it.
 	if (!c) {
 		handle_output_created(output);
 	}
@@ -217,7 +217,7 @@ static bool handle_view_created(wlc_handle handle) {
 		wlc_view_set_state(handle, WLC_BIT_MAXIMIZED, true);
 		break;
 
-	// Dmenu keeps viewfocus, but others with this flag dont, for now simulate
+	// Dmenu keeps viewfocus, but others with this flag don't, for now simulate
 	// dmenu
 	case WLC_BIT_OVERRIDE_REDIRECT:
 // 		locked_view_focus = true;
@@ -288,7 +288,7 @@ static void handle_view_destroyed(wlc_handle handle) {
 	case WLC_BIT_POPUP:
 		break;
 	// DMENU has this flag, and takes view_focus, but other things with this
-	// flag dont
+	// flag don't
 	case WLC_BIT_OVERRIDE_REDIRECT:
 // 		locked_view_focus = false;
 		break;
@@ -651,7 +651,7 @@ static bool handle_pointer_button(wlc_handle view, uint32_t time, const struct w
 	// get focused window and check if to change focus on mouse click
 	swayc_t *focused = get_focused_container(&root_container);
 
-	// dont change focus or mode if fullscreen
+	// don't change focus or mode if fullscreen
 	if (swayc_is_fullscreen(focused)) {
 		return EVENT_PASSTHROUGH;
 	}
diff --git a/sway/input_state.c b/sway/input_state.c
index cb71673ea..429b2f34f 100644
--- a/sway/input_state.c
+++ b/sway/input_state.c
@@ -96,7 +96,7 @@ void press_key(uint32_t key_sym, uint32_t key_code) {
 	}
 	// Check if key exists
 	if (!check_key(key_sym, key_code)) {
-		// Check that we dont exceed buffer length
+		// Check that we don't exceed buffer length
 		int insert = find_key(0, 0, true);
 		if (insert < KEY_STATE_MAX_LENGTH) {
 			key_state_array[insert].key_sym = key_sym;
@@ -249,7 +249,7 @@ static void pointer_mode_set_dragging(void) {
 		pointer_state.mode = M_DRAGGING | M_FLOATING;
 	} else {
 		pointer_state.mode = M_DRAGGING | M_TILING;
-		// unset mode if we cant drag tile
+		// unset mode if we can't drag tile
 		if (initial.ptr->parent->type == C_WORKSPACE &&
 				initial.ptr->parent->children->length == 1) {
 			pointer_state.mode = 0;
@@ -317,7 +317,7 @@ void pointer_mode_set(uint32_t button, bool condition) {
 		switch (button) {
 		// Start left-click mode
 		case M_LEFT_CLICK:
-			// if button release dont do anything
+			// if button release don't do anything
 			if (pointer_state.left.held) {
 				if (config->dragging_key == M_LEFT_CLICK) {
 					pointer_mode_set_dragging();
@@ -329,7 +329,7 @@ void pointer_mode_set(uint32_t button, bool condition) {
 
 		// Start right-click mode
 		case M_RIGHT_CLICK:
-			// if button release dont do anyhting
+			// if button release don't do anyhting
 			if (pointer_state.right.held) {
 				if (config->dragging_key == M_RIGHT_CLICK) {
 					pointer_mode_set_dragging();
diff --git a/sway/layout.c b/sway/layout.c
index 180aafa0f..b1139b1b4 100644
--- a/sway/layout.c
+++ b/sway/layout.c
@@ -204,7 +204,7 @@ void swap_container(swayc_t *a, swayc_t *b) {
 	if (a_parent->focused == a) {
 		a_parent->focused = b;
 	}
-	// dont want to double switch
+	// don't want to double switch
 	if (b_parent->focused == b && a_parent != b_parent) {
 		b_parent->focused = a;
 	}