Free Caption & Hashtag Generator
Describe your video and get three ready-to-post captions for TikTok, Instagram or YouTube Shorts, plus hashtags sorted into broad, niche and specific. Copy one caption with its hashtags in a click.
Free, no sign-up.
How to write captions and hashtags with AI
- 01
Describe the video
Say what happens and who it is for. Mention the result or the twist, since that is what a caption should tease.
- 02
Choose platform and tone
TikTok, Instagram or YouTube Shorts; casual, funny, professional or inspiring; emojis on or off.
- 03
Get three captions
A short one, one that asks a question to start comments, and a longer story caption with a soft call to action.
- 04
Copy with hashtags
Hashtags come in three groups: broad for reach, niche for your community and specific for this video. Copy one caption with all of them in one click.
Examples
Sample outputs, shortened to one caption and two tags per group.
Video
Time-lapse of a thrifted dresser repainted mint green in one weekend (TikTok, casual)
From curb find to my favorite piece in 48 hours 馃 Would you have kept the original wood? Broad: #diy #furnitureflip 路 Niche: #thriftflip #upcycledfurniture 路 Specific: #dressermakeover
Video
Coffee shop showing how they make an oat milk latte (Instagram, professional)
Steamed, poured, served in 40 seconds. Our oat milk latte, made the way we would want it. Broad: #coffee #latteart 路 Niche: #specialtycoffee #baristalife 路 Specific: #oatmilklatte
Caption tips that hold up
- Lead with the payoff or the question; the first line is all most people see before "more".
- Use the words people would search for. TikTok and Instagram both read captions for search.
- Ask one easy question to invite comments, not three.
- Match the caption to the on-screen text instead of repeating it word for word.
- Skip #fyp and #viral: they are too broad to tell the app who the video is for.
- Keep brand and product tags to the ones you actually own or have permission to use.
Frequently asked questions
How many hashtags should I use on TikTok and Instagram?
Fewer, more relevant tags beat long lists. Three to five well-chosen hashtags are plenty on TikTok and Reels: the apps mainly read the video, the caption and the on-screen text. The generator gives you about a dozen to choose from in three groups.
What is the difference between broad, niche and specific hashtags?
Broad tags (#cooking) are huge and competitive. Niche tags (#mealprepideas) reach the community that cares about your topic. Specific tags (#nightshiftmeals) describe this exact video. A mix of one or two from each group is a good default.
Is the caption generator free?
Yes, without an account. A fair-use limit of 5 generations per 10 minutes and 20 per day for each visitor keeps it free for everyone.
Does it work for YouTube Shorts?
Yes. Pick YouTube Shorts and the captions are written as Shorts descriptions. On Shorts, the title and the first line of the description matter most, so the short caption works well as a title.
Should I put hashtags in the caption or a comment?
In the caption. Hashtags in comments are not reliably used for discovery on TikTok or Instagram. Put the most important words in the caption text itself too, since both apps use captions for search.
Can AI make the video for my caption as well?
Yes. Press Create the video below your results. After a free sign-up, Viralance opens the studio with a prompt built from your description, and you can generate the clip with VEO 3.1, Kling, Seedance and other models.
More free tools
- AI Hook GeneratorTen scroll-stopping opening lines for TikTok, Reels and Shorts.
- AI Video Prompt GeneratorTurn a rough idea into a prompt written for VEO, Kling, Seedance or Hailuo.
- Aspect Ratio CalculatorPixel sizes per platform, safe zones and resize math.
- Virality PredictorAn AI read on your hook, retention risks and edits before you post.