diff --git a/include/core/String.hpp b/include/core/String.hpp
index ea287780..819a3002 100644
--- a/include/core/String.hpp
+++ b/include/core/String.hpp
@@ -6,64 +6,106 @@
 namespace godot {
 
 class NodePath;
+class Variant;
+class PoolByteArray;
+class PoolRealArray;
+class PoolStringArray;
 
-class String
-{
+class String {
 	godot_string _godot_string;
+
 public:
 	String();
-
 	String(const char *contents);
-
 	String(const wchar_t *contents);
-
 	String(const wchar_t c);
-
-	String(const String& other);
+	String(const String &other);
 
 	~String();
 
+	wchar_t &operator[](const int idx);
+	wchar_t operator[](const int idx) const;
 
-	String substr(int p_from,int p_chars) const;
-
-
-	wchar_t &operator [](const int idx);
-
-	wchar_t operator [](const int idx) const;
-
-	int length() const;
-
-	void operator =(const String &s);
-
-	bool operator ==(const String &s);
-
-	bool operator !=(const String &s);
-
-	String operator +(const String &s);
-
-	void operator +=(const String &s);
-
-	void operator +=(const wchar_t c);
-
-	bool operator <(const String &s);
-
-	bool operator <=(const String &s);
-
-	bool operator >(const String &s);
-
-	bool operator >=(const String &s);
+	void operator=(const String &s);
+	bool operator==(const String &s);
+	bool operator!=(const String &s);
+	String operator+(const String &s);
+	void operator+=(const String &s);
+	void operator+=(const wchar_t c);
+	bool operator<(const String &s);
+	bool operator<=(const String &s);
+	bool operator>(const String &s);
+	bool operator>=(const String &s);
 
 	operator NodePath() const;
 
+	int length() const;
 	const char *c_string() const;
 
+	int64_t find(String p_what) const;
+	int64_t find_from(String p_what, int64_t p_from) const;
+	bool begins_with(String &s) const;
+	bool begins_with_char_array(const char *p_char_array) const;
+	PoolStringArray bigrams() const;
+	String c_escape() const;
+	String c_unescape() const;
+	String capitalize() const;
+	bool empty() const;
+	bool ends_with(String &text) const;
+	void erase(int position, int chars) const;
+	int find(String what, int from = 0) const;
+	int find_last(String what) const;
+	int findn(String what, int from = 0) const;
+	String format(Variant values, String placeholder) const;
+	String get_base_dir() const;
+	String get_basename() const;
+	String get_extension() const;
+	String get_file() const;
+	int hash() const;
+	int hex_to_int() const;
+	String insert(int position, String what) const;
+	bool is_abs_path() const;
+	bool is_rel_path() const;
+	bool is_subsequence_of(String text) const;
+	bool is_subsequence_ofi(String text) const;
+	bool is_valid_float() const;
+	bool is_valid_html_color() const;
+	bool is_valid_identifier() const;
+	bool is_valid_integer() const;
+	bool is_valid_ip_address() const;
+	String json_escape() const;
+	String left(int position) const;
+	bool match(String expr) const;
+	bool matchn(String expr) const;
+	PoolByteArray md5_buffer() const;
+	String md5_text() const;
+	int ord_at(int at) const;
+	String pad_decimals(int digits) const;
+	String pad_zeros(int digits) const;
+	String percent_decode() const;
+	String percent_encode() const;
+	String plus_file(String file) const;
+	String replace(String what, String forwhat) const;
+	String replacen(String what, String forwhat) const;
+	int rfind(String what, int from = -1) const;
+	int rfindn(String what, int from = -1) const;
+	String right(int position) const;
+	PoolByteArray sha256_buffer() const;
+	String sha256_text() const;
+	float similarity(String text) const;
+	PoolStringArray split(String divisor, bool allow_empty = true) const;
+	PoolRealArray split_floats(String divisor, bool allow_empty = true) const;
+	String strip_edges(bool left = true, bool right = true) const;
+	String substr(int from, int len) const;
+	float to_float() const;
+	int64_t to_int() const;
+	String to_lower() const;
+	String to_upper() const;
+	String xml_escape() const;
+	String xml_unescape() const;
 };
 
-String operator +(const char *a, const String& b);
-
-
+String operator+(const char *a, const String &b);
 }
 
-
-
 #endif // STRING_H
diff --git a/src/core/String.cpp b/src/core/String.cpp
index 85a7b5fc..2de76b03 100644
--- a/src/core/String.cpp
+++ b/src/core/String.cpp
@@ -1,6 +1,9 @@
 #include "String.hpp"
 
+#include "Array.hpp"
 #include "NodePath.hpp"
+#include "PoolArrays.hpp"
+#include "Variant.hpp"
 
 #include <gdnative/string.h>
 
@@ -8,133 +11,423 @@
 
 namespace godot {
 
-godot::String::String()
-{
+godot::String::String() {
 	godot_string_new(&_godot_string);
 }
 
-String::String(const char *contents)
-{
+String::String(const char *contents) {
 	godot_string_new_data(&_godot_string, contents, strlen(contents));
 }
 
-String::String(const wchar_t *contents)
-{
+String::String(const wchar_t *contents) {
 	// @Todo
 	// godot_string_new_data(&_godot_string, contents, strlen(contents));
 	godot_string_new(&_godot_string);
 }
 
-String::String(const wchar_t c)
-{
+String::String(const wchar_t c) {
 	// @Todo
 	godot_string_new(&_godot_string);
 }
 
-String::String(const String& other)
-{
+String::String(const String &other) {
 	godot_string_new_copy(&_godot_string, &other._godot_string);
 }
 
-String::~String()
-{
+String::~String() {
 	godot_string_destroy(&_godot_string);
 }
 
-
-String String::substr(int p_from,int p_chars) const
-{
-	return String(); // @Todo
-}
-
-
-wchar_t &String::operator [](const int idx)
-{
+wchar_t &String::operator[](const int idx) {
 	return *godot_string_operator_index(&_godot_string, idx);
 }
 
-wchar_t String::operator [](const int idx) const
-{
-	return *godot_string_operator_index((godot_string *) &_godot_string, idx);
+wchar_t String::operator[](const int idx) const {
+	return *godot_string_operator_index((godot_string *)&_godot_string, idx);
 }
 
-int String::length() const
-{
+int String::length() const {
 	int len = 0;
 	godot_string_get_data(&_godot_string, nullptr, &len);
 	return len;
 }
 
-void String::operator =(const String &s)
-{
+void String::operator=(const String &s) {
 	godot_string_destroy(&_godot_string);
 	godot_string_new_copy(&_godot_string, &s._godot_string);
 }
 
-bool String::operator ==(const String &s)
-{
+bool String::operator==(const String &s) {
 	return godot_string_operator_equal(&_godot_string, &s._godot_string);
 }
 
-bool String::operator !=(const String &s)
-{
+bool String::operator!=(const String &s) {
 	return !(*this == s);
 }
 
-String String::operator +(const String &s)
-{
+String String::operator+(const String &s) {
 	String new_string = *this;
-	new_string._godot_string = godot_string_operator_plus(&new_string._godot_string, &s._godot_string);
+	new_string._godot_string =
+			godot_string_operator_plus(&new_string._godot_string, &s._godot_string);
 
 	return new_string;
 }
 
-void String::operator +=(const String &s)
-{
+void String::operator+=(const String &s) {
 	_godot_string = godot_string_operator_plus(&_godot_string, &s._godot_string);
 }
 
-void String::operator +=(const wchar_t c)
-{
+void String::operator+=(const wchar_t c) {
 	// @Todo
 }
 
-bool String::operator <(const String &s)
-{
+bool String::operator<(const String &s) {
 	return godot_string_operator_less(&_godot_string, &s._godot_string);
 }
 
-bool String::operator <=(const String &s)
-{
-	return godot_string_operator_less(&_godot_string, &s._godot_string) || (*this == s);
+bool String::operator<=(const String &s) {
+	return godot_string_operator_less(&_godot_string, &s._godot_string) ||
+		   (*this == s);
 }
 
-bool String::operator >(const String &s)
-{
+bool String::operator>(const String &s) {
 	return !(*this <= s);
 }
 
-bool String::operator >=(const String &s)
-{
+bool String::operator>=(const String &s) {
 	return !(*this < s);
 }
 
-String::operator NodePath() const
-{
+String::operator NodePath() const {
 	return NodePath(*this);
 }
 
-const char *String::c_string() const
-{
+const char *String::c_string() const {
 	return godot_string_c_str(&_godot_string);
 }
 
-
-String operator +(const char *a, const String& b)
-{
+String operator+(const char *a, const String &b) {
 	return String(a) + b;
 }
 
-
-
+bool String::begins_with(String &p_string) const {
+	return godot_string_begins_with(&_godot_string, &p_string._godot_string);
+}
+
+bool String::begins_with_char_array(const char *p_char_array) const {
+	return godot_string_begins_with_char_array(&_godot_string, p_char_array);
+}
+
+PoolStringArray String::bigrams() const {
+	godot_array arr = godot_string_bigrams(&_godot_string);
+
+	return *(PoolStringArray *)&arr;
+}
+
+String String::c_escape() const {
+	String new_string;
+	new_string._godot_string = godot_string_c_escape(&_godot_string);
+
+	return new_string;
+}
+
+String String::c_unescape() const {
+	String new_string;
+	new_string._godot_string = godot_string_c_unescape(&_godot_string);
+
+	return new_string;
+}
+
+String String::capitalize() const {
+	String new_string;
+	new_string._godot_string = godot_string_capitalize(&_godot_string);
+
+	return new_string;
+}
+
+bool String::empty() const {
+	return godot_string_empty(&_godot_string);
+}
+
+bool String::ends_with(String &p_string) const {
+	return godot_string_ends_with(&_godot_string, &p_string._godot_string);
+}
+
+void String::erase(int position, int chars) const {
+	godot_string_erase(&_godot_string, position, chars);
+}
+
+int String::find(String p_what, int p_from) const {
+	return godot_string_find(&_godot_string, p_what._godot_string);
+}
+
+int String::find_last(String what) const {
+	return godot_string_find_last(&_godot_string, what._godot_string);
+}
+
+int String::findn(String what, int from) const {
+	return godot_string_findn(&_godot_string, what._godot_string);
+}
+
+String String::format(Variant values, String placeholder) const {
+	String new_string;
+	new_string._godot_string = godot_string_format(&_godot_string, (godot_variant *)&values);
+
+	return new_string;
+}
+
+String String::get_base_dir() const {
+	String new_string;
+	new_string._godot_string = godot_string_get_base_dir(&_godot_string);
+
+	return new_string;
+}
+
+String String::get_basename() const {
+	godot_string new_string = godot_string_get_basename(&_godot_string);
+	return *(String *)&new_string;
+}
+
+String String::get_extension() const {
+	godot_string new_string = godot_string_get_extension(&_godot_string);
+	return *(String *)&new_string;
+}
+
+String String::get_file() const {
+	godot_string new_string = godot_string_get_file(&_godot_string);
+	return *(String *)&new_string;
+}
+
+int String::hash() const {
+	return godot_string_hash(&_godot_string);
+}
+
+int String::hex_to_int() const {
+	return godot_string_hex_to_int(&_godot_string);
+}
+
+String String::insert(int position, String what) const {
+	String new_string;
+	new_string._godot_string = godot_string_insert(&_godot_string, position, what._godot_string);
+
+	return new_string;
+}
+
+bool String::is_abs_path() const {
+	return godot_string_is_abs_path(&_godot_string);
+}
+
+bool String::is_rel_path() const {
+	return godot_string_is_rel_path(&_godot_string);
+}
+
+bool String::is_subsequence_of(String text) const {
+	return godot_string_is_subsequence_of(&_godot_string, &text._godot_string);
+}
+
+bool String::is_subsequence_ofi(String text) const {
+	return godot_string_is_subsequence_ofi(&_godot_string, &text._godot_string);
+}
+
+bool String::is_valid_float() const {
+	return godot_string_is_valid_float(&_godot_string);
+}
+
+bool String::is_valid_html_color() const {
+	return godot_string_is_valid_html_color(&_godot_string);
+}
+
+bool String::is_valid_identifier() const {
+	return godot_string_is_valid_identifier(&_godot_string);
+}
+
+bool String::is_valid_integer() const {
+	return godot_string_is_numeric(&_godot_string);
+}
+
+bool String::is_valid_ip_address() const {
+	return godot_string_is_valid_ip_address(&_godot_string);
+}
+
+String String::json_escape() const {
+	String new_string;
+	new_string._godot_string = godot_string_json_escape(&_godot_string);
+
+	return new_string;
+}
+
+String String::left(int position) const {
+	String new_string;
+	new_string._godot_string = godot_string_left(&_godot_string, position);
+
+	return new_string;
+}
+
+bool String::match(String expr) const {
+	return godot_string_match(&_godot_string, &expr._godot_string);
+}
+
+bool String::matchn(String expr) const {
+	return godot_string_match(&_godot_string, &expr._godot_string);
+}
+
+PoolByteArray String::md5_buffer() const {
+	godot_pool_byte_array arr = godot_string_md5_buffer(&_godot_string);
+	return *(PoolByteArray *)&arr;
+}
+
+String String::md5_text() const {
+	String new_string;
+	new_string._godot_string = godot_string_md5_text(&_godot_string);
+
+	return new_string;
+}
+
+int String::ord_at(int at) const {
+	return godot_string_ord_at(&_godot_string, at);
+}
+
+String String::pad_decimals(int digits) const {
+	String new_string;
+	new_string._godot_string = godot_string_pad_decimals(&_godot_string, digits);
+
+	return new_string;
+}
+
+String String::pad_zeros(int digits) const {
+	String new_string;
+	new_string._godot_string = godot_string_pad_zeros(&_godot_string, digits);
+
+	return new_string;
+}
+
+String String::percent_decode() const {
+	String new_string;
+	new_string._godot_string = godot_string_percent_decode(&_godot_string);
+
+	return new_string;
+}
+
+String String::percent_encode() const {
+	String new_string;
+	new_string._godot_string = godot_string_percent_encode(&_godot_string);
+
+	return new_string;
+}
+
+String String::plus_file(String file) const {
+	String new_string;
+	new_string._godot_string = godot_string_plus_file(&_godot_string, &file._godot_string);
+
+	return new_string;
+}
+
+String String::replace(String p_key, String p_with) const {
+	String new_string;
+	new_string._godot_string = godot_string_replace(&_godot_string, p_key._godot_string, p_with._godot_string);
+
+	return new_string;
+}
+
+String String::replacen(String what, String forwhat) const {
+	String new_string;
+	new_string._godot_string = godot_string_replacen(&_godot_string, what._godot_string, forwhat._godot_string);
+
+	return new_string;
+}
+
+int String::rfind(String what, int from) const {
+	return godot_string_rfind(&_godot_string, what._godot_string);
+}
+
+int String::rfindn(String what, int from) const {
+	// From -1
+	return godot_string_rfindn(&_godot_string, what._godot_string);
+}
+
+String String::right(int position) const {
+	String new_string;
+	new_string._godot_string = godot_string_right(&_godot_string, position);
+
+	return new_string;
+}
+
+PoolByteArray String::sha256_buffer() const {
+	godot_pool_byte_array arr = godot_string_sha256_buffer(&_godot_string);
+
+	return *(PoolByteArray *)&arr;
+}
+
+String String::sha256_text() const {
+	String new_string;
+	new_string._godot_string = godot_string_sha256_text(&_godot_string);
+
+	return new_string;
+}
+
+float String::similarity(String text) const {
+	return godot_string_similarity(&_godot_string, &text._godot_string);
+}
+
+PoolStringArray String::split(String divisor, bool allow_empty) const {
+	godot_array arr = godot_string_split(&_godot_string, &divisor._godot_string);
+
+	return *(PoolStringArray *)&arr;
+}
+
+PoolRealArray String::split_floats(String divisor, bool allow_empty) const {
+	godot_array arr = godot_string_split_floats(&_godot_string, &divisor._godot_string);
+
+	return *(PoolRealArray *)&arr;
+}
+
+String String::strip_edges(bool left, bool right) const {
+	String new_string;
+	new_string._godot_string = godot_string_strip_edges(&_godot_string, left, right);
+
+	return new_string;
+}
+
+String String::substr(int from, int len) const {
+	String new_string;
+	new_string._godot_string = godot_string_substr(&_godot_string, from, len);
+
+	return new_string;
+}
+
+float String::to_float() const {
+	return godot_string_to_float(&_godot_string);
+}
+
+int64_t String::to_int() const {
+	return godot_string_to_int(&_godot_string);
+}
+
+String String::to_lower() const {
+	String new_string;
+	new_string._godot_string = godot_string_to_lower(&_godot_string);
+
+	return new_string;
+}
+
+String String::to_upper() const {
+	String new_string;
+	new_string._godot_string = godot_string_to_upper(&_godot_string);
+
+	return new_string;
+}
+
+String String::xml_escape() const {
+	String new_string;
+	new_string._godot_string = godot_string_xml_escape(&_godot_string);
+
+	return new_string;
+}
+
+String String::xml_unescape() const {
+	String new_string;
+	new_string._godot_string = godot_string_xml_unescape(&_godot_string);
+
+	return new_string;
+}
 }