diff --git a/include/tlibtoml/toml.h b/include/tlibtoml/toml.h
index bafde18..fad4a41 100644
--- a/include/tlibtoml/toml.h
+++ b/include/tlibtoml/toml.h
@@ -33,9 +33,9 @@ typedef struct {
 typedef struct TomlValue TomlValue;
 
 typedef struct {
-    TomlValue*     elements;
-    u64          len;
-    u64          _capacity;
+    TomlValue*  elements;
+    u64         len;
+    u64         _capacity;
 } TomlArray;
 
 
@@ -63,18 +63,6 @@ struct TomlValue {
     } value;
 };
 
-typedef struct {
-    void* (*malloc)(void* context, u64 size);
-    void* (*realloc)(void* context, void* p, u64 size);
-    void  (*free)(void* context, void* p);
-} TomlAllocFuncs;
-
-void toml_set_allocator(void* context, const TomlAllocFuncs *funcs);
-
-void* toml_malloc(u64 size);
-void* toml_realloc(void* p, u64 size);
-void toml_free(void* p);
-
 const TomlErr* toml_err(void);
 void toml_err_clear(void);
 
diff --git a/src/toml.c b/src/toml.c
index 3eb758d..95ae38d 100644
--- a/src/toml.c
+++ b/src/toml.c
@@ -12,58 +12,6 @@
 
 static ATTRIBUTE_THREAD_LOCAL TomlErr g_err = { TOML_OK, NULL };
 
-static void* toml_default_malloc(void* context, u64 size)
-{
-    (void)context;
-    void* p = malloc(size);
-    return p;
-}
-
-static void* toml_default_realloc(void* context, void* p, u64 size)
-{
-    (void)context;
-    void* ptr = realloc(p, size);
-    return ptr;
-}
-
-static void toml_default_free(void* context, void* p)
-{
-    (void)context;
-    free(p);
-}
-
-static TomlAllocFuncs g_default_alloc_funcs = {
-    &toml_default_malloc,
-    &toml_default_realloc,
-    &toml_default_free
-};
-
-static void* g_alloc_context = NULL;
-static const TomlAllocFuncs* g_alloc_funcs = &g_default_alloc_funcs;
-
-void toml_set_allocator(void* context, const TomlAllocFuncs *funcs)
-{
-    g_alloc_context = context;
-    g_alloc_funcs = funcs;
-}
-
-void* toml_malloc(u64 size)
-{
-    return g_alloc_funcs->malloc(g_alloc_context, size);
-}
-
-void* toml_realloc(void* p, u64 size)
-{
-    return g_alloc_funcs->realloc(g_alloc_context, p, size);
-}
-
-void toml_free(void* p)
-{
-    if (p != NULL) {
-        g_alloc_funcs->free(g_alloc_context, p);
-    }
-}
-
 const TomlErr* toml_err(void)
 {
     return &g_err;
@@ -71,7 +19,7 @@ const TomlErr* toml_err(void)
 
 void toml_err_clear(void)
 {
-    toml_free(g_err.message);
+    free(g_err.message);
     g_err.code = TOML_OK;
 }
 
@@ -96,7 +44,7 @@ static inline void toml_err_set(TomlErrCode code, cstr format, ...)
 
 TomlTable* toml_table_new(void)
 {
-    TomlTable* table = toml_malloc(sizeof(TomlTable));
+    TomlTable* table = malloc(sizeof(TomlTable));
     HashMap_construct(table, TomlValue, (FreeFunction)TomlValue_destroy);
     return table;
 }
@@ -180,7 +128,7 @@ bool toml_table_get_bool(const TomlTable* self, str key)
 
 TomlArray *toml_array_new(void)
 {
-    TomlArray* array = toml_malloc(sizeof(TomlArray));
+    TomlArray* array = malloc(sizeof(TomlArray));
     array->elements = NULL;
     array->len = 0;
     array->_capacity = 0;
@@ -189,20 +137,21 @@ TomlArray *toml_array_new(void)
 
 void toml_array_free(TomlArray* self)
 {
-    if (self != NULL) {
-        for (u64 i = 0; i < self->len; i++) {
-            TomlValue_destroy(&self->elements[i]);
-        }
-        free(self->elements);
-        free(self);
+    if (self == NULL) 
+        return;
+    
+    for (u64 i = 0; i < self->len; i++) {
+        TomlValue_destroy(&self->elements[i]);
     }
+    free(self->elements);
+    free(self);
 }
 
 void toml_array_expand_if_necessary(TomlArray* self)
 {
     if (self->len + 1 > self->_capacity) {
         u64 new_capacity = self->_capacity > 0 ? self->_capacity * 2 : 8;
-        void* p = toml_realloc(self->elements, sizeof(TomlValue) * new_capacity);
+        void* p = realloc(self->elements, sizeof(TomlValue) * new_capacity);
         self->elements = p;
         self->_capacity = new_capacity;
     }
@@ -241,7 +190,7 @@ TomlValue TomlValue_new(TomlType type)
             value.value.b = false;    
             break;
         case TOML_DATETIME:
-            value.value.dt = (TomlDateTime*)toml_malloc(sizeof(TomlDateTime));
+            value.value.dt = (TomlDateTime*)malloc(sizeof(TomlDateTime));
             memset(value.value.dt, 0, sizeof(TomlDateTime));
             break;
     }
@@ -303,23 +252,24 @@ TomlValue TomlValue_new_bool(bool b)
 
 void TomlValue_destroy(TomlValue* self)
 {
-    if (self != NULL) {
-        switch (self->type) {
-            case TOML_STRING:
-                str_destroy(self->value.s);
-                break;
-            case TOML_TABLE:
-                toml_table_free(self->value.table);
-                break;
-            case TOML_ARRAY:
-                toml_array_free(self->value.array);
-                break;
-            case TOML_DATETIME:
-                free(self->value.dt);
-                break;
-            default:
-                break;
-        }
+    if (self == NULL) 
+        return;
+    
+    switch (self->type) {
+        case TOML_STRING:
+            str_destroy(self->value.s);
+            break;
+        case TOML_TABLE:
+            toml_table_free(self->value.table);
+            break;
+        case TOML_ARRAY:
+            toml_array_free(self->value.array);
+            break;
+        case TOML_DATETIME:
+            free(self->value.dt);
+            break;
+        default:
+            break;
     }
 }
 
@@ -329,28 +279,27 @@ typedef struct _TomlParser {
     cstr    ptr;
     i32     lineno;
     i32     colno;
-    char*   filename;
+    cstr   filename;
 } TomlParser;
 
 TomlParser* toml_parser_new(str s, cstr filename)
 {
-    TomlParser* parser = toml_malloc(sizeof(TomlParser));
+    TomlParser* parser = malloc(sizeof(TomlParser));
     parser->begin = s.data;
     parser->end = s.data + s.size;
     parser->ptr = s.data;
     parser->lineno = 1;
     parser->colno = 1;
-    // TODO: remove copy filename?
-    parser->filename = str_copy(str_from_cstr(filename)).data;
+    parser->filename = filename;
     return parser;
 }
 
 void toml_parser_free(TomlParser* self)
 {
-    if (self != NULL) {
-        free(self->filename);
-        free(self);
-    }
+    if (self == NULL) 
+        return;
+    
+    free(self);
 }
 
 void toml_move_next(TomlParser* self)