diff --git a/Common/ArmABI.cpp b/Common/ArmABI.cpp
index b3608707ce..a3781a7eaf 100644
--- a/Common/ArmABI.cpp
+++ b/Common/ArmABI.cpp
@@ -78,7 +78,7 @@ void ARMXEmitter::ARMABI_PopAllCalleeSavedRegsAndAdjustStack() {
 const char *conditions[] = {"EQ", "NEQ", "CS", "CC", "MI", "PL", "VS", "VC", "HI", "LS", "GE", "LT", "GT", "LE", "AL" };      
 static void ShowCondition(u32 cond)
 {
-	printf("Condition: %s[%d]\n", conditions[cond], cond);
+	printf("Condition: %s[%d]\n", conditions[cond], (int)cond);
 }
 void ARMXEmitter::ARMABI_ShowConditions()
 {
diff --git a/Common/ArmEmitter.cpp b/Common/ArmEmitter.cpp
index 024eea1a77..039c68b41e 100644
--- a/Common/ArmEmitter.cpp
+++ b/Common/ArmEmitter.cpp
@@ -3036,7 +3036,7 @@ void ARMXEmitter::VMOV_imm(u32 Size, ARMReg Vd, VIMMMode type, int imm) {
 	return;
 
 error:
-	_dbg_assert_msg_(JIT, false, "Bad Size or type specified in %s: Size %i Type %i", __FUNCTION__, Size, type);
+	_dbg_assert_msg_(JIT, false, "Bad Size or type specified in %s: Size %i Type %i", __FUNCTION__, (int)Size, type);
 }
 
 void ARMXEmitter::VMOV_immf(ARMReg Vd, float value) {  // This only works with a select few values. I've hardcoded 1.0f.
diff --git a/Core/Debugger/SymbolMap.cpp b/Core/Debugger/SymbolMap.cpp
index f71562b666..7528a53673 100644
--- a/Core/Debugger/SymbolMap.cpp
+++ b/Core/Debugger/SymbolMap.cpp
@@ -95,7 +95,7 @@ bool SymbolMap::LoadSymbolMap(const char *filename) {
 			}
 		}
 
-		if (strlen(line) < 4 || sscanf(line, "%s", temp) != 1)
+		if (strlen(line) < 4 || sscanf(line, "%255s", temp) != 1)
 			continue;
 
 		if (strcmp(temp,"UNUSED")==0) continue;
@@ -123,7 +123,7 @@ bool SymbolMap::LoadSymbolMap(const char *filename) {
 		SymbolType type;
 		char name[128] = {0};
 
-		if (sscanf(line, ".module %x %08x %08x %127c", &moduleIndex, &address, &size, name) >= 3) {
+		if (sscanf(line, ".module %x %08x %08x %127c", (unsigned int *)&moduleIndex, &address, &size, name) >= 3) {
 			// Found a module definition.
 			ModuleEntry mod;
 			mod.index = moduleIndex;
@@ -229,7 +229,7 @@ bool SymbolMap::LoadNocashSym(const char *filename) {
 			break;
 
 		u32 address;
-		if (sscanf(line, "%08X %s", &address, value) != 2)
+		if (sscanf(line, "%08X %255s", &address, value) != 2)
 			continue;
 		if (address == 0 && strcmp(value, "0") == 0)
 			continue;
@@ -255,7 +255,7 @@ bool SymbolMap::LoadNocashSym(const char *filename) {
 				}
 			}
 		} else {				// labels
-			int size = 1;
+			unsigned int size = 1;
 			char* seperator = strchr(value, ',');
 			if (seperator != NULL) {
 				*seperator = 0;
diff --git a/Core/HLE/sceKernelThread.cpp b/Core/HLE/sceKernelThread.cpp
index 528cde669c..3f049f86f3 100644
--- a/Core/HLE/sceKernelThread.cpp
+++ b/Core/HLE/sceKernelThread.cpp
@@ -386,7 +386,7 @@ public:
 			(nt.status & THREADSTATUS_SUSPEND) ? "SUSPEND" : "", 
 			(nt.status & THREADSTATUS_DORMANT) ? "DORMANT" : "",
 			(nt.status & THREADSTATUS_DEAD) ? "DEAD" : "",
-			nt.waitType,
+			(int)nt.waitType,
 			nt.waitID,
 			waitInfo.waitValue);
 	}
diff --git a/Qt/Debugger/ctrldisasmview.cpp b/Qt/Debugger/ctrldisasmview.cpp
index 931fc84ed6..af496e30a8 100644
--- a/Qt/Debugger/ctrldisasmview.cpp
+++ b/Qt/Debugger/ctrldisasmview.cpp
@@ -332,7 +332,7 @@ void CtrlDisAsmView::paintEvent(QPaintEvent *)
 				}
 				if (mojs)
 				{
-					int offs;
+					unsigned int offs;
 					sscanf(mojs+3,"%08x",&offs);
 					branches[numBranches].src=rowY1 + rowHeight/2;
 					branches[numBranches].srcAddr=address/align;
diff --git a/ext/native/ext/vjson/main.cpp b/ext/native/ext/vjson/main.cpp
index c0658c3ae0..81f72e5c28 100644
--- a/ext/native/ext/vjson/main.cpp
+++ b/ext/native/ext/vjson/main.cpp
@@ -25,7 +25,7 @@ void populate_sources(const char *filter, std::vector<std::vector<char> > &sourc
 		}
 	}
 
-	printf("Loaded %d json files\n", sources.size());
+	printf("Loaded %d json files\n", (int)sources.size());
 }
 
 #define IDENT(n) for (int i = 0; i < n; ++i) printf("    ")
@@ -91,13 +91,13 @@ int main(int argc, char **argv)
 	int passed = 0;
 	for (size_t i = 0; i < sources.size(); ++i)
 	{
-		printf("Parsing %d\n", i + 1);
+		printf("Parsing %d\n", (int)i + 1);
 		if (parse(&sources[i][0]))
 		{
 			++passed;
 		}
 	}
-	printf("Passed %d from %d tests\n", passed, sources.size());
+	printf("Passed %d from %d tests\n", passed, (int)sources.size());
 
 	// Pass
 	sources.clear();
@@ -106,13 +106,13 @@ int main(int argc, char **argv)
 	passed = 0;
 	for (size_t i = 0; i < sources.size(); ++i)
 	{
-		printf("Parsing %d\n", i + 1);
+		printf("Parsing %d\n", (int)i + 1);
 		if (parse(&sources[i][0]))
 		{
 			++passed;
 		}
 	}
-	printf("Passed %d from %d tests\n", passed, sources.size());
+	printf("Passed %d from %d tests\n", passed, (int)sources.size());
 
 	return 0;
 }
diff --git a/ext/native/net/http_client.cpp b/ext/native/net/http_client.cpp
index 99d019ad33..b4fdb82fe8 100644
--- a/ext/native/net/http_client.cpp
+++ b/ext/native/net/http_client.cpp
@@ -160,7 +160,7 @@ void DeChunk(Buffer *inbuffer, Buffer *outbuffer, int contentLength, float *prog
 		inbuffer->TakeLineCRLF(&line);
 		if (!line.size())
 			return;
-		int chunkSize;
+		unsigned int chunkSize;
 		sscanf(line.c_str(), "%x", &chunkSize);
 		if (chunkSize) {
 			std::string data;
diff --git a/ext/native/tools/atlastool.cpp b/ext/native/tools/atlastool.cpp
index b152f66d0d..0e14364ef5 100644
--- a/ext/native/tools/atlastool.cpp
+++ b/ext/native/tools/atlastool.cpp
@@ -833,7 +833,7 @@ int main(int argc, char **argv) {
 			char locales[256];
 			int pixheight;
 			float vertOffset = 0;
-			sscanf(rest, "%s %s %s %i %f", fontname, fontfile, locales, &pixheight, &vertOffset);
+			sscanf(rest, "%255s %255s %255s %i %f", fontname, fontfile, locales, &pixheight, &vertOffset);
 			printf("Font: %s (%s) in size %i. Locales: %s\n", fontname, fontfile, pixheight, locales);
 
 			std::vector<CharRange> ranges;
@@ -846,7 +846,7 @@ int main(int argc, char **argv) {
       char imagename[256];
       char imagefile[256];
       char effectname[256];
-      sscanf(rest, "%s %s %s", imagename, imagefile, effectname);
+      sscanf(rest, "%255s %255s %255s", imagename, imagefile, effectname);
       Effect effect = GetEffect(effectname);
       printf("Image %s with effect %s (%i)\n", imagefile, effectname, (int)effect);
       ImageDesc desc;
diff --git a/ext/native/util/text/parsers.cpp b/ext/native/util/text/parsers.cpp
index ea53d43d6f..8024324b08 100644
--- a/ext/native/util/text/parsers.cpp
+++ b/ext/native/util/text/parsers.cpp
@@ -28,7 +28,7 @@ int Version::ToInteger() const {
 }
 
 bool ParseMacAddress(std::string str, uint8_t macAddr[6]) {
-	int mac[6];
+	unsigned int mac[6];
 	if (6 != sscanf(str.c_str(), "%02x:%02x:%02x:%02x:%02x:%02x", &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5])) {
 		return false;
 	}
@@ -36,4 +36,4 @@ bool ParseMacAddress(std::string str, uint8_t macAddr[6]) {
 		macAddr[i] = mac[i];
 	}
 	return true;
-}
\ No newline at end of file
+}