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AI Hashtag Generator
Suggest specific and broad hashtags from your caption with on-device AI, sized to each platform's limits.
Free, no uploads, no sign-up. Runs 100% in your browser.
How AI Hashtag Generator works
Everything is drawn or encoded on your device, so drafts stay private until you post them. A small AI model runs on your device in a background worker, with progress and a Cancel button. It downloads once and is cached. If your device is slow or offline, a quick mode gives a result without any download. The model compares your caption with phrases from it and a built-in topic list.
Input: Text. Output: Text.
How to use AI Hashtag Generator
- Paste your caption or description.
- Pick the platform.
- Press Suggest hashtags.
- Untick any you do not want and copy.
Tips
- Video tools encode on your device, so short clips finish much faster.
- Square and 4:5 sizes take the most space in feeds. 9:16 is for stories, reels and shorts.
AI Hashtag Generator FAQ
- Are my files uploaded?
- No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
- Is it free? Are there limits or watermarks?
- Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
- Does it work offline?
- Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.
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- Caption Styler: Turn SRT captions into bold short-form captions with word highlight, then burn them into your video or export ASS.
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