Disclaimer: Save editing can diminish the sense of accomplishment. The author and publisher are not responsible for any loss of save data or existential dread caused by having infinite cookies. Always backup your original CookieClickerSave.txt file.
If you do not want to use an external website, you can use Cookie Clicker's built-in developer tools to edit your game state in real-time. This method is highly reliable as it bypasses third-party encoding tools entirely. Method A: The Developer Name Trick cookie clicker save editor 2031 full