To transcribe a TikTok video to text for free, you can utilize a simple method using Google Docs. Begin by opening a new Google document and navigating to the "Tools" tab. From there, click on "Voice typing" and choose your microphone. Once these settings are selected, open the TikTok video you wish to transcribe and click on the microphone icon in your Google document. Google Docs will then listen to the audio and convert it into written text, allowing you to transcribe the TikTok video effortlessly.