ViralAri
Free tool, daily limit

Free caption and hashtag generator

Describe the video once. Get a caption and a short hashtag set for TikTok, Reels and Shorts.
What happens in it, who it is for, anything you want people to comment on.

How to use it

  1. Describe what happens in the video and who it is for.
  2. Get one caption per app, each with a short hashtag set.
  3. Copy the one you need and edit it in your own words.

Why one caption per app

The three apps show captions differently. TikTok captions are usually short and conversational. On Instagram, only the first line shows before 'more', so it has to stand alone. On YouTube Shorts, the text works more like a searchable title, and YouTube shows the first few hashtags above it.

Hashtags: fewer and more specific

Hashtags help an app understand what a video is about. A short set of relevant tags is easier to keep accurate than a long block of generic ones. Tags like #fyp or #viral describe nothing about the video, so this tool leaves them out.

Questions

How many hashtags should I use?

This tool suggests 3 to 5 on TikTok and Reels and 3 on Shorts. There is no proven magic number; relevance matters more than count.

Is it free?

Yes, 5 runs a day, no signup.

Will it add emojis?

Rarely. Add your own if they fit your style.

Check your actual draft before you post

Check any short in about a minute: Ari scores the opening, flags the moments most likely to lose viewers, suggests 3 fixes and writes 5 hooks from what you say. Got a podcast or stream? Clip finder finds the best moments in videos up to 15 minutes.

Check a video free

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Further reading