Long Video to Shorts Online

Upload a long talking video and get captioned short clips back — right in your browser. Nothing to install, no API key to set up.

What you get

• Up to three short clips cut from your video, each ending at a natural sentence break
• Burned-in captions in Traditional Chinese (Taiwan) or English
• An MP4 and an SRT caption file for every clip
• A short title for each clip

Two formats

• Vertical with black bars (default): 9:16 for Shorts, Reels and TikTok. The whole frame is kept, nothing is cropped, and captions sit in the bar.
• Keep landscape: your 16:9 video stays 16:9, with one-line captions.

Fix any caption by chatting

Speech-to-text can mishear names or slang. Just tell the agent "change caption 5 to …" or "split caption 3", and it re-exports the clip. Your wording is kept exactly.

Limits

• Chinese or English speech only
• Up to 500 MB and 20 minutes per video. Larger files: re-export at 1080p first
• Upload the file itself; links are not supported
• Processing takes a few minutes per video
• Some videos have no part that stands alone as a short clip. In that case you will be told honestly, and no clip is made
• Clips are the strongest moments found in your video, not guaranteed highlights. Nothing here promises views or virality

Privacy

Your audio is sent to Deepgram for speech-to-text, and the transcript to DeepSeek for clip selection, titles and caption line breaks. Your video file itself stays in your workspace.

Want to see it first? Ask the agent to "run the sample".