Riverside is the best free transcription website for accurately converting audio and video files to text in 2024. It offers audio and video transcriptions in over 100 languages with a claimed accuracy of 99%. The platform is free to use and also provides features like live collaboration, search, and speaker identification. Additionally, it allows users to import their media files for free and syncs them word-for-word with the transcript. While there are other free transcription services available, Riverside stands out for its high accuracy and versatility.