DuanYing AI: Turn Long Videos into Multiple Short Clips with One Click 106

短影ai(duan.ai) is a locally-run AI-powered video editing tool that can quickly cut long videos into multiple short videos for posting on different platforms. Its biggest advantages are fully offline operation, privacy protection, speed, and convenience. If you have a large amount of long-form video and don't want to hire an editor, 短影AI is currently an affordable, offline, easy-to-use long-to-short video tool.

Main Features of 短影AI

• Automatic segmentation: Upload a long video up to 3 hours, which can be imported from local files or from Bilibili and YouTube links. The AI first performs content understanding, scoring by emotional highs, information density, and audience retention, and automatically cuts it into 5–30 short clips of 15–60 seconds. The default is vertical 9:16, but 1:1 or 16:9 can also be selected.

• Smart cropping + face tracking: Traditional cropping methods often cut off people's heads. 短影AI uses its proprietary Talking-Head Tracking model to keep the face centered at all times. When multiple people are talking, it switches to the person currently speaking.

• Subtitles/titles/covers done in one pass: Speech-to-text uses a proprietary Chinese model that supports Cantonese and Sichuan/Chongqing dialects, automatically adds punctuation, and removes verbal slips. Three viral-title engines run simultaneously, generating TikTok-style titles with emoji that can be used directly. Covers are automatically selected from the highest-emotion frame and overlaid with text.

• Batch + offline: The software is 400MB and works on both Windows and macOS. By default, everything runs locally, accelerated by GPU—a GTX 1660 with 6GB VRAM is enough. Long videos are not uploaded, so it can also be used on a company's intranet. Only cloud backup or sharing uses the server, and this can be turned off.

• Multi-language output: If the original video is in English, subtitles and titles can be translated into Chinese, Japanese, Spanish, and Portuguese with one click, making it easy to post on overseas TikTok accounts.

Technical Advantages of 短影AI

• Uses offline inference, doesn't rely on cloud servers, no usage limits, no cost. The AI can identify video highlights and cut them into shareable clips, making short videos more engaging. Speech-to-text is highly accurate at 97%, with subtitles and visuals moving in sync for a comfortable viewing experience.

Use Cases for 短影AI

• Live-stream e-commerce: Find product highlights and exciting moments from live-stream replays to make re-postable short videos.

• Sports events: Cut out key goals, highlights, or controversial calls, making it easy for viewers to rewatch and share.

• Interviews and speeches: Turn long speeches into essence clips, highlighting main points and delivering information faster.

• Film and entertainment: Capture highlight moments from dramas or variety shows for promotion or to spark discussion.

• Product demos: Turn long demo videos into feature highlight clips that emphasize selling points and boost conversion.

• Knowledge and courses: Extract the key content from teaching videos to create knowledge point compilations, convenient for fragmented learning.

How to Use 短影AI

Go to the official website duan.ai to download the client, install and register. On the homepage, click "New Task," drag in the long video, select the number of segments (5–30), and choose the platform ratio (TikTok 9:16, Xiaohongshu 3:4, YouTube Shorts 9:16). Wait 3–10 minutes. For example, an RTX 3060 cutting a 30-minute video into 10 clips takes 6 minutes. In the right-side short clip list, you can double-click to preview, adjust the start and end points, and batch export in the upper right corner. The local folder will produce MP4, SRT subtitles, and TXT titles. Open TikTok or CapCut and post directly.

短影AI Pricing

*Cloud Enhancement: Upscales 720p source to 1080p, automatically reduces noise, adds BGM, can be turned off.

Frequently Asked Questions about 短影AI

1. How to use 短影AI to automatically cut short videos?

It's just three steps: upload the long video you want to cut, set the parameters, and the AI takes care of the rest. One long video can be cut into 10+ viral short clips. Just save and export after cutting.

2. Are there any length, size, or format restrictions on uploaded videos?

No limits. Regardless of length, size, or format, anything can be cut, and you can cut as many times as you want.

3. Is 短影AI video completely free?

It's currently completely free. You just need to configure your DeepSeek open platform API key.

4. Is the privacy of uploaded videos secure?

Videos are not uploaded to the internet; everything is processed on your machine, and your NVIDIA GPU speed can be fully utilized.

短影AI is currently completely free. Only advanced features require a DeepSeek Open Platform API Key. A Windows version is available, supporting Win 8.1 and above, and runs more stably locally. Over 100,000 short videos have been produced, and many users find it very useful.