The image is ready.So is the copy.
Generates captions in your brand voice. You choose the channel and the length; the writing comes out sounding like your brand.
Rather hand the job over? In our Content Production service we run this tool for you; scope and monthly price are published.
Social media content creation servicesWhat makes a good Instagram caption
The caption is the text under a post. In the feed, often only the first lines are visible and the rest sits behind “more”. That makes the first sentence a second hook, right after the image.
- Hook: the line that stops the reader.
- Body: one benefit of the product or topic, in short sentences.
- Call to action: a single ask that changes with your goal (comment, save, message, buy).
- Hashtags: tags that fit the topic and stay within the platform's range.
Length and hashtag range by platform
The same caption does not work everywhere. When you pick a channel, the tool pulls length and hashtag count into that channel's range. The ranges are recommendations, not technical limits: X allows 280 characters, but the tool stops at 260 to leave room for a tag or a link.
Values come from the product's scoring rules (upper end of the character range). Technical limits differ by platform; LinkedIn allows 3,000 characters per post and X allows 280.
| Channel | Characters | Hashtags |
|---|---|---|
| 120 to 1,200 characters | 3 to 5 hashtags | |
| TikTok | 60 to 300 characters | 2 to 6 hashtags |
| 400 to 2,000 characters | 0 to 4 hashtags | |
| 100 to 800 characters | 0 to 5 hashtags | |
| X | 40 to 260 characters | 0 to 3 hashtags |
| YouTube | 200 to 1,500 characters | 3 to 8 hashtags |
More tags do not help. YouTube ignores every hashtag on a video that has more than 60; the tool suggests 3 to 8 tags for YouTube.
How a caption is generated
- 1Write the topic
Between 5 and 2,200 characters, or pick a ready-made starter.
- 2Pick channel and goal
Set channel, goal, length, tone, emoji and keyword.
- 3Generate variants
2, 3 or 5 variants; the variation style changes tone, hook or call to action.
- 4Fix one part
Regenerate the hook, body, call to action or hashtags on their own.
- 5Copy
Copy the variant you like, part by part or in full.
| Setting | Options |
|---|---|
| Starter | Product launch, FAQ, trust message, sale, moment of use, launch |
| Goal | Engagement, sales, awareness, leads, saves and shares |
| Length | Short, medium, long |
| Variation style | Different tone, different hook, different call to action, completely different |
| Tone | Brand tone, professional, friendly, energetic, premium, direct |
| Emoji | Automatic, few, none |
Option names are translated from the Turkish panel.
Where brand tone and banned words come from
With “use brand knowledge” switched on, the tool searches the brand's saved information for the most relevant passages and grounds the caption in them. The brand's phrases to avoid and learned bans go into generation, and every caption also passes a safety scan.
- Brand voice and phrases to avoid are defined in the brand agent.
- The “why this approach” panel shows how many brand documents the caption relies on.
- The safety summary flags sentences with claims banned in your industry.
Quota and next steps
Each generation and each part regeneration uses one caption credit. The free plan includes 10 a month. Starter includes 170 a month, Pro 300, Pro 5 Brands 900 and Enterprise 1,800. Compare plans on the pricing page.
- Place the caption on a publishing day with the content calendar.
- Turn the same text into other formats with content repurposing.
- Send it through team review with content approval.
Who it suits
- Social media teams who write every caption from an empty box.
- Brands that want one tone across captions written by different people.
- Agencies that write the same topic six times for six channels.
To hand off writing, visuals and publishing together, see social media management and our content creation services.
Frequently asked questions
Which channels does caption generation support?
Instagram, TikTok, LinkedIn, Facebook, X and YouTube. Picking a channel adjusts length and hashtag count to that channel's recommended range.
Where does it get the brand tone?
From the brand's saved information, voice and list of phrases to avoid. If “use brand knowledge” is off, only the on-screen settings are used.
How many variants does it produce?
You choose 2, 3 or 5 per run. The variation style changes the tone, the hook, the call to action or the whole caption.
Can I change only the hook?
Yes. The hook can be regenerated, shortened or strengthened; body, call to action and hashtags can each be regenerated too. Each part regeneration uses one credit.
Does a high score mean more engagement?
The score does not say that. It measures rule compliance only: length, hashtags, hook, call to action and banned claims.
Which language are captions written in?
Turkish. For other markets, adapt the caption with the multilingual translation tool.
How many captions can I generate?
The free plan includes 10 a month. Starter includes 170 a month, Pro 300, Pro 5 Brands 900 and Enterprise 1,800.
Sources
The official documentation behind the technical points on this page:
- [1]LinkedIn Help: Post and share updates
The 3,000-character limit for a LinkedIn post.
- [2]X Developer: Counting characters
The 280-character limit on X and emoji counting as two characters.
- [3]YouTube Help: Find videos using hashtags
YouTube ignores every hashtag on a video with more than 60.
Related pages
- Content repurposingTurn one source into formats for several channels.
- Content calendarPut a finished caption on its publishing day.
- Brand agentDefine brand voice and banned words.
- Content creation servicesHand off copy and visual production.
- Multilingual TranslationThe multilingual translator turns one text into up to 7 of 10 languages at once, each on its own card.
- LinkedIn ManagementAgentFabrica publishes text and image posts on behalf of the connected member's LinkedIn profile.
- Quick BriefQuick Brief asks for five fields: what you are promoting, who it is for, what the viewer should do, where and how it runs, and an optional note.
Stop writing copy from scratch every time.
The full panel is free with no time limit: brand, accounts, reports. Allowance: 10 captions a month, 2 images a month, 1 videos a month, 1 brand, 1 user. More captions open on paid plans.