diff --git a/bpytop.py b/bpytop.py
index 9f3c8ce..de52dcc 100755
--- a/bpytop.py
+++ b/bpytop.py
@@ -2566,7 +2566,7 @@ class ProcBox(Box):
 				if not "delete" in Key.mouse: Key.mouse["delete"] = [[x+12 + len(proc.search_filter[-10:]) + i, y-1] for i in range(3)]
 			elif "delete" in Key.mouse:
 				del Key.mouse["delete"]
-			out_misc += (f'{Mv.to(y-1, x + 8)}{THEME.proc_box(Symbol.title_left)}{Fx.b if cls.filtering or proc.search_filter else ""}{THEME.hi_fg("f")}{THEME.title}' +
+			out_misc += (f'{Mv.to(y-1, x + 8)}{THEME.proc_box(Symbol.title_left)}{Fx.b if cls.filtering or proc.search_filter else ""}{THEME.hi_fg("F" if cls.filtering and proc.case_sensitive else "f")}{THEME.title}' +
 				("ilter" if not proc.search_filter and not cls.filtering else f' {proc.search_filter[-(10 if w < 83 else w - 74):]}{(Fx.bl + "█" + Fx.ubl) if cls.filtering else THEME.hi_fg(" del")}') +
 				f'{THEME.proc_box(Symbol.title_right)}')
 
@@ -3523,6 +3523,7 @@ class ProcCollector(Collector):
 	'''Collects process stats'''
 	buffer: str = ProcBox.buffer
 	search_filter: str = ""
+	case_sensitive: bool = False
 	processes: Dict = {}
 	num_procs: int = 0
 	det_cpu: float = 0.0
@@ -3554,7 +3555,12 @@ class ProcCollector(Collector):
 		sorting: str = CONFIG.proc_sorting
 		reverse: bool = not CONFIG.proc_reversed
 		proc_per_cpu: bool = CONFIG.proc_per_core
-		search: str = cls.search_filter
+		search: List[str] = []
+		if cls.search_filter:
+			if cls.case_sensitive:
+				search = [i.strip() for i in cls.search_filter.split(",")]
+			else:
+				search = [i.strip() for i in cls.search_filter.lower().split(",")]
 		err: float = 0.0
 		n: int = 0
 
@@ -3581,8 +3587,10 @@ class ProcCollector(Collector):
 					if cls.detailed and p.info["pid"] == cls.detailed_pid:
 						cls.det_cpu = p.info["cpu_percent"]
 					for value in [ p.info["name"], " ".join(p.info["cmdline"]), str(p.info["pid"]), p.info["username"] ]:
-						for s in search.split(","):
-							if s.strip() in value:
+						if not cls.case_sensitive:
+							value = value.lower()
+						for s in search:
+							if s in value:
 								break
 						else: continue
 						break
@@ -3694,7 +3702,7 @@ class ProcCollector(Collector):
 				if len(cls.details_mem) > ProcBox.width: del cls.details_mem[0]
 
 	@classmethod
-	def _tree(cls, sort_cmd, reverse: bool, proc_per_cpu: bool, search: str):
+	def _tree(cls, sort_cmd, reverse: bool, proc_per_cpu: bool, search: List[str]):
 		'''List all processess in a tree view with pid, name, threads, username, memory percent and cpu percent'''
 		out: Dict = {}
 		err: float = 0.0
@@ -3737,8 +3745,10 @@ class ProcCollector(Collector):
 				if "username" in getinfo and isinstance(getinfo["username"], float): getinfo["username"] = ""
 				if "cmdline" in getinfo and isinstance(getinfo["cmdline"], float): getinfo["cmdline"] = ""
 				for value in [ name, str(pid), getinfo.get("username", ""), " ".join(getinfo.get("cmdline", "")) ]:
-					for s in search.split(","):
-						if s.strip() in value:
+					if not cls.case_sensitive:
+						value = value.lower()
+					for s in search:
+						if s in value:
 							found = True
 							break
 					else: continue
@@ -5178,8 +5188,9 @@ def process_keys():
 			elif key == "c":
 				CONFIG.proc_per_core = not CONFIG.proc_per_core
 				Collector.collect(ProcCollector, interrupt=True, redraw=True)
-			elif key == "f":
+			elif key in ["f", "F"]:
 				ProcBox.filtering = True
+				ProcCollector.case_sensitive = key == "F"
 				if not ProcCollector.search_filter: ProcBox.start = 0
 				Collector.collect(ProcCollector, redraw=True, only_draw=True)
 			elif key in ["T", "K", "I"] and (ProcBox.selected > 0 or ProcCollector.detailed):