diff --git a/libobs/util/platform.c b/libobs/util/platform.c
index 0b07cac6b..2496b9938 100644
--- a/libobs/util/platform.c
+++ b/libobs/util/platform.c
@@ -236,6 +236,52 @@ bool os_quick_write_utf8_file(const char *path, const char *str, size_t len,
 	return true;
 }
 
+bool os_quick_write_utf8_file_safe(const char *path, const char *str,
+		size_t len, bool marker, const char *temp_ext,
+		const char *backup_ext)
+{
+	struct dstr backup_path = {0};
+	struct dstr temp_path = {0};
+	bool success = false;
+
+	if (!temp_ext || !*temp_ext) {
+		blog(LOG_ERROR, "os_quick_write_utf8_file_safe: invalid "
+		                "temporary extension specified");
+		return false;
+	}
+
+	dstr_copy(&temp_path, path);
+	if (*temp_ext != '.')
+		dstr_cat(&temp_path, ".");
+	dstr_cat(&temp_path, temp_ext);
+
+	if (!os_quick_write_utf8_file(temp_path.array, str, len, marker)) {
+		goto cleanup;
+	}
+
+	if (backup_ext && *backup_ext) {
+		dstr_copy(&backup_path, path);
+		if (*backup_ext != '.')
+			dstr_cat(&backup_path, ".");
+		dstr_cat(&backup_path, backup_ext);
+
+		os_unlink(backup_path.array);
+		os_rename(path, backup_path.array);
+
+		dstr_free(&backup_path);
+	} else {
+		os_unlink(path);
+	}
+
+	os_rename(temp_path.array, path);
+	success = true;
+
+cleanup:
+	dstr_free(&backup_path);
+	dstr_free(&temp_path);
+	return success;
+}
+
 size_t os_mbs_to_wcs(const char *str, size_t len, wchar_t *dst, size_t dst_size)
 {
 	size_t out_len;
diff --git a/libobs/util/platform.h b/libobs/util/platform.h
index 33982aec7..8d0013cda 100644
--- a/libobs/util/platform.h
+++ b/libobs/util/platform.h
@@ -44,6 +44,9 @@ EXPORT size_t os_fread_utf8(FILE *file, char **pstr);
 EXPORT char *os_quick_read_utf8_file(const char *path);
 EXPORT bool os_quick_write_utf8_file(const char *path, const char *str,
 		size_t len, bool marker);
+EXPORT bool os_quick_write_utf8_file_safe(const char *path, const char *str,
+		size_t len, bool marker, const char *temp_ext,
+		const char *backup_ext);
 EXPORT char *os_quick_read_mbs_file(const char *path);
 EXPORT bool os_quick_write_mbs_file(const char *path, const char *str,
 		size_t len);