Captioner is an AI-powered video transcription and subtitle platform designed to help content creators caption videos with less manual work. Users upload MP4 or MOV files and work in their browser to generate, review, and edit subtitles. The service supports speech-to-text in more than 98 languages and emphasizes precise timing, including word-level timestamps.

Users can also import an existing transcript for alignment and translate subtitles into supported languages. Finished subtitles can be exported in SBV, SRT, or VTT formats, or added directly to a downloadable video. Captioner accepts videos up to two hours long and 2 GB per upload.

Its pricing options include a free plan with 60 one-time credits, monthly Basic and Creator subscriptions, and a one-week pass. Paid plans offer different credit allowances and export features, including watermark-free video; Creator also includes 4K video export and priority rendering. By combining transcription, subtitle editing, translation, and export tools in one browser-based workflow, Captioner aims to reduce the time creators spend preparing videos for publishing