SubsGPT is an AI tool designed to aid in the translation of subtitles. It makes use of advanced machine learning algorithms for this purpose, particularly Generative Pretraining Transformer (GPT) technology, known for its efficiency in language understanding tasks. SubsGPT provides support for informal language translation, with one of the examples being transforming informal Russian phrases into informal Portuguese. It allows you to interact with the system via json, which should contain the same number of phrases as the input for a symmetrical output. Users can upload subtitle files in the .srt format. After the tool completes its translation process, outputs can be downloaded for further use. It's important to note that this tool requires JavaScript to run. Versatile and user-friendly, SubsGPT is a beneficial resource for subtitle translators, content creators, filmmakers, or anyone in need of quick, accurate, multilingual subtitle translation.