Listening to native-speed audio is hard without captions. CaptionFit auto-transcribes in 50+ languages — paste your transcript to fix errors.
CaptionFit auto-transcribes in over 50 languages — Spanish, French, Japanese, Mandarin, Korean, German, and more.
Upload native-speed audio and CaptionFit produces a timed transcript — no manual listening and typing.
Paste your own transcript or textbook text to correct errors and align it precisely to the audio timing.
Export an SRT subtitle file to use with any video player, language learning app, or study tool.
No credit card required. Add captions to your foreign language materials immediately on the free tier.
Listening comprehension is one of the hardest skills to build in a foreign language. Native-speed audio — podcasts, songs, TV shows, YouTube videos — can be overwhelming without text support. Adding captions to foreign language audio gives you a scaffold to follow along, replay difficult sections, and study vocabulary in context.
CaptionFit supports over 50 languages for auto-transcription. If you have a textbook transcript, script, or existing translation, you can paste it directly and CaptionFit aligns it to the audio timing — creating a perfectly synced subtitle file. Use the SRT in VLC, a language learning app, or export a captioned video for easier review.
If you're a language teacher creating subtitled materials for students, also see how educators caption lesson videos. For academic language research or corpus building, explore how researchers use CaptionFit for audio transcription.
Studying with foreign-language audio? Translate the captions into your own language to check comprehension, then switch back to the original. CaptionFit translates your subtitles into 100+ languages in one click, keeping every line perfectly timed to the audio.
Pick from 100+ languages and translate every caption in seconds.
Translated captions keep the exact original timing — no re-syncing.
Works with every caption style, font, and word-by-word karaoke highlight.