diff --git a/bshell/debug.c b/bshell/debug.c
new file mode 100644
index 0000000..9927475
--- /dev/null
+++ b/bshell/debug.c
@@ -0,0 +1,135 @@
+#include "debug.h"
+
+#include "ast/ast.h"
+#include "parse/token.h"
+
+#include <fx/string.h>
+#include <fx/term/print.h>
+#include <stdio.h>
+
+extern void print_lex_token(struct lex_token *tok)
+{
+	printf("[%lu:%lu - %lu:%lu] ",
+	       tok->tok_start.c_row,
+	       tok->tok_start.c_col,
+	       tok->tok_end.c_row,
+	       tok->tok_end.c_col);
+
+	switch (tok->tok_type) {
+	case TOK_KEYWORD:
+		fx_puts("[magenta]");
+		break;
+	case TOK_SYMBOL:
+		fx_puts("[blue]");
+		break;
+	case TOK_INT:
+	case TOK_DOUBLE:
+		fx_puts("[yellow]");
+		break;
+	case TOK_FLAG:
+		fx_puts("[red]");
+		break;
+	case TOK_WORD:
+	case TOK_VAR:
+	case TOK_VAR_SPLAT:
+		fx_puts("[cyan]");
+		break;
+	case TOK_STRING:
+		fx_puts("[green]");
+		break;
+	case TOK_STR_START:
+		fx_puts("[green]");
+		break;
+	case TOK_STR_END:
+		fx_puts("[green]");
+		break;
+	case TOK_LINEFEED:
+		fx_puts("[dark_grey]");
+		break;
+	default:
+		break;
+	}
+
+	fx_puts(token_type_to_string(tok->tok_type));
+
+	switch (tok->tok_type) {
+	case TOK_WORD:
+	case TOK_FLAG:
+	case TOK_STRING:
+	case TOK_VAR:
+	case TOK_VAR_SPLAT:
+		printf("(%s)", tok->tok_str);
+		break;
+	case TOK_SYMBOL:
+		printf("(%s)", token_symbol_to_string(tok->tok_symbol));
+		break;
+	case TOK_KEYWORD:
+		printf("(%s)", token_keyword_to_string(tok->tok_keyword));
+		break;
+	case TOK_INT:
+		printf("(%lld)", tok->tok_int);
+		break;
+	case TOK_DOUBLE:
+		printf("(%lf)", tok->tok_double);
+		break;
+	default:
+		break;
+	}
+
+	fx_puts("[reset]\n");
+}
+
+void print_ast_node(struct ast_node *node)
+{
+	struct ast_iterator it = {0};
+	ast_node_iterate(node, &it);
+
+	while (1) {
+		node = ast_iterator_peek(&it);
+		if (!node) {
+			break;
+		}
+
+		for (unsigned long i = 0; i < node->n_it.e_depth; i++) {
+			fx_puts("  ");
+		}
+
+		switch (node->n_type) {
+		case AST_REDIRECTION:
+		case AST_PIPELINE:
+			fx_puts("[blue]");
+			break;
+		case AST_CMDCALL:
+			fx_puts("[red]");
+			break;
+		case AST_INT:
+		case AST_DOUBLE:
+			fx_puts("[yellow]");
+			break;
+		case AST_WORD:
+			fx_puts("[cyan]");
+			break;
+		case AST_STRING:
+		case AST_FSTRING:
+			fx_puts("[green]");
+			break;
+		default:
+			break;
+		}
+
+		fx_printf("%s", ast_node_type_to_string(node->n_type));
+
+		char s[128] = {0};
+		fx_bstr str;
+		fx_bstr_begin(&str, s, sizeof s);
+		ast_node_to_string(node, &str);
+
+		if (fx_bstr_get_size(&str)) {
+			fx_printf("(%s)", fx_bstr_end(&str));
+		}
+
+		fx_printf("[reset]\n");
+
+		ast_iterator_dequeue(&it);
+	}
+}
diff --git a/bshell/debug.h b/bshell/debug.h
new file mode 100644
index 0000000..3374f50
--- /dev/null
+++ b/bshell/debug.h
@@ -0,0 +1,12 @@
+#ifndef DEBUG_H_
+#define DEBUG_H_
+
+#include <stdbool.h>
+
+struct ast_node;
+struct lex_token;
+
+extern void print_lex_token(struct lex_token *tok);
+extern void print_ast_node(struct ast_node *node);
+
+#endif