diff --git a/oct_log.c b/oct_log.c
new file mode 100644
index 0000000..b9ad673
--- /dev/null
+++ b/oct_log.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include "oct_log.h"
+
+FILE* oct_log_output_file;
+int oct_log_level;
+
+// If filename is null, default to stderr
+int oct_log_init(char* filename, int level) {
+	if (filename) {
+		oct_log_output_file = fopen(filename, "w");
+	}
+	else {
+		oct_log_output_file = stderr;
+	}
+	oct_log_level = level;
+
+	OCT_LOG_INFO("Initialized logging, output file: %s", filename ? filename : "stderr");
+	return 1;
+}
+
+int oct_log_deinit() {
+	if (oct_log_output_file != stderr) {
+		fclose(oct_log_output_file);
+	}
+	return 1;
+}
diff --git a/oct_log.h b/oct_log.h
new file mode 100644
index 0000000..31cb8dc
--- /dev/null
+++ b/oct_log.h
@@ -0,0 +1,46 @@
+#ifndef OCT_LOG_H
+#define OCT_LOG_H
+
+#include <stdio.h>
+
+#define OCT_LOG_LEVEL_ERROR 0
+#define OCT_LOG_LEVEL_WARNING 1
+#define OCT_LOG_LEVEL_INFO 2
+#define OCT_LOG_LEVEL_DEBUG 3
+
+extern FILE* oct_log_output_file;
+extern int oct_log_level;
+
+#define OCT_LOG_ERROR(...)								\
+	if (oct_log_level >= OCT_LOG_LEVEL_ERROR) {			\
+		fprintf(oct_log_output_file, "[ERR]: ");		\
+		fprintf(oct_log_output_file, __VA_ARGS__);		\
+		fprintf(oct_log_output_file, "\n");				\
+	}
+
+#define OCT_LOG_WARNING(...)								\
+	if (oct_log_level >= OCT_LOG_LEVEL_WARNING) {			\
+		fprintf(oct_log_output_file, "[WAR]: ");			\
+		fprintf(oct_log_output_file, __VA_ARGS__);			\
+		fprintf(oct_log_output_file, "\n");					\
+	}
+
+#define OCT_LOG_INFO(...)								\
+	if (oct_log_level >= OCT_LOG_LEVEL_INFO) {			\
+		fprintf(oct_log_output_file, "[INF]: ");		\
+		fprintf(oct_log_output_file, __VA_ARGS__);		\
+		fprintf(oct_log_output_file, "\n");				\
+	}
+
+#define OCT_LOG_DEBUG(...)								\
+	if (oct_log_level >= OCT_LOG_LEVEL_DEBUG) {			\
+		fprintf(oct_log_output_file, "[DBG]: ");		\
+		fprintf(oct_log_output_file, __VA_ARGS__);		\
+		fprintf(oct_log_output_file, "\n");				\
+	}
+
+// If filename is null, default to stderr
+int oct_log_init(char* filename, int level);
+int oct_log_deinit();
+
+#endif