No watermark · No signup to try
Subtitles for every video, in 100+ languages
Upload a video, get accurate captions in seconds, translate them and export a styled video or SRT. Your video never leaves your device.
Everything you need to caption faster
99 spoken languages
Automatic speech recognition with word-level timing, even for mixed accents.
Translate into 100+ languages
Context-aware translation that keeps the original timing. Bilingual captions in one click.
Viral caption styles
Word-by-word highlight, bold fonts and layouts made for Reels, TikTok and Shorts.
Private by design
Your video is processed in your browser. Only a small audio track is sent for transcription.
No watermark, even free
3 free videos a month, up to 10 minutes each. Clean exports.
SRT, VTT and TXT
Download subtitle files for YouTube, Vimeo, Premiere, DaVinci Resolve and more.
Already have an SRT file?
Translate it into 100+ languages for free. Timing stays exactly the same.
Questions
Is PolyCaption really free?+
Yes. The free plan includes 3 videos a month of up to 10 minutes each, with no watermark. Paid plans add more minutes, batch uploads and brand styles.
Do you store my videos?+
No. The video is processed in your browser and never uploaded. Only a compressed audio track is sent for transcription and it is not kept.
Which languages are supported?+
Speech recognition works in 99 languages. Subtitles can be translated into more than 100 languages.
How long does it take?+
Transcription usually takes seconds. Exporting a video with burned-in captions runs in your browser and takes about as long as the video on a modern laptop.
Can I use the captions commercially?+
Yes. You own your videos and subtitles.