Instagram Caption Generator
Describe what your post or Reel shows and get 8 captions at a time, each with a strong first line, a question or call to action and a few relevant hashtags. Writing for TikTok? Switch the platform in the form.
Your ideas will show up here. Fill in the form and press Generate.
How to use the caption generator
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Describe the post
Say what is in the photo or video and why you are posting it: "Before and after of my balcony garden, six months of work, mostly from seeds".
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Choose Instagram or TikTok
Captions are written for the platform you pick. Both get a hook up top and a short set of hashtags at the end.
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Set the tone and language
Fun for casual posts, emotional for personal stories, professional for brands. Choose the language your audience reads.
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Copy, then make it yours
Pick the caption closest to your voice and change a word or two. A detail only you know (a name, a number, a place) makes any caption better.
The structure of a caption that gets read
Every caption the generator writes follows the same three parts. Use the structure when you edit.
1. The first line
Only the start of the caption shows before "more": about 125 characters on Instagram, per Sendible (April 2026). Make that line a reason to tap: a result, a surprise, a question.
2. The body
One to three short sentences of context: the story, the tip, the detail behind the image. Line breaks make it easier to read on a phone.
3. The ending
A question that is easy to answer ("Which one would you keep?") or a clear action ("Save this for your next trip"), then a few relevant hashtags.
Instagram vs. TikTok captions
| TikTok | ||
|---|---|---|
| Where the caption shows | Under the post or Reel, cut after the first lines | Over the bottom of the video, cut after the first lines |
| What it needs to do | Add context and drive saves, shares and comments | Back up the video and add searchable words |
| Hashtags | Up to 5 per post or Reel (since December 2025) | A few relevant ones; keep them specific |
| Length that works | Short to medium; long captions suit stories and tips | Short; the video does most of the work |
Instagram's 5-hashtag cap was announced by the @creators account; see Social Samosa, 19 December 2025. Instagram said it would roll the change out gradually. The rest of the table is general guidance, not platform rules.
Caption tips for Instagram and TikTok
- Do not repeat the image. "A sunset at the beach" adds nothing the photo does not. Say what the viewer cannot see: where, why, what happened next.
- Ask one question. A simple question invites comments. "Thoughts?" is weaker than "Would you try this at home?"
- Use fewer, better hashtags. With Instagram capping posts at five, pick ones that describe the post exactly instead of broad tags like #instagood.
- Put keywords in the words, too. People search Instagram and TikTok by topic. Naming the dish, the place or the skill in plain words helps the right viewers find the post.
- Match the hook in the video. For Reels and TikToks, the caption backs up the first seconds of the video. Our guide to video hooks covers how to open strong.
- Keep a swipe file. When a caption does well, save it. Rewrite its structure for your next post.
Need more Reels to caption?
Short.now cuts your long videos into captioned 9:16 Reels and TikToks, and can post them for you on a schedule.
Questions
Yes. You can generate captions without an account, within a fair-use limit per hour and per day.
Yes. Switch the platform to TikTok in the form and the captions are written for TikTok, with a short hook and a few relevant hashtags.
Up to five. Instagram announced in December 2025 that it would limit posts and Reels to five hashtags. The generator adds three to five relevant ones to each caption.
Up to 2,200 characters, according to Sendible's guide to Instagram limits (April 2026). Only the first line or two show before "more", so put the important part first.
No. It only reads the description you type, so describe what the post shows and why you are posting it.
Yes. Pick English, Spanish, Portuguese, French, German, Italian, Japanese or Russian in the form.
