Describe what you want to say once and get a native post for every platform you pick, inside its character limit, with hooks and hashtag sets you can edit before you publish.
Let’s write a post!
Type a few lines about what you want to say, or paste a blog post, product page or press release to turn into posts. Add your brand, link and audience under Details.
The Social Media Post Generator is the part of this AI writing assistant built for the post you have to publish today. You describe what you want to say once, pick the platforms, and the social media content writer returns a native version for each one — an Instagram caption with its hashtag block, a 280-character X post, a LinkedIn post that earns its “see more”, a YouTube title and description, a Pinterest pin, a Reddit title and body — every one inside that platform’s own limit, with three opening hooks and a hashtag set you can toggle in or out before you copy it.
Three steps. The second one is what a general chatbot cannot do for you.
A couple of lines is enough — “we ship the new kraft mailers on Friday, pre-orders get 15% off, link in bio”. Paste a blog post, product page or press release instead if you have one; the generator pulls the post out of it. Names, prices, dates and links carry through exactly as typed.
Choose one platform or all ten. Choose a post, a thread or carousel, or a video script. Set the tone (eight), the goal (engage, educate, announce, sell, grow, recruit, entertain) and the length. Every platform you picked comes back as its own card, written to its own rules.
Each card shows a live character count against that platform’s limit, three alternative opening lines, and broad, niche and branded hashtags you can click into the caption one at a time. Edit anything in place, then copy the card or download the whole set.
A caption that works on Instagram is a wall of text on X and a wasted opportunity on LinkedIn. The generator knows the limit, the visible preview length, the hashtag habit and the extra fields of each network, so you do not have to.
280 characters, links count as 23, hashtags sparingly. Threads as numbered posts.
Tweet & thread generator2,200 characters, the first 125 show before “more”, up to 30 hashtags, alt text for the image.
Instagram caption generatorLong posts allowed, but roughly 477 characters show before the fold. Few or no hashtags.
Facebook post generator3,000 characters, about 210 before “see more”, three to five hashtags, no link in the body.
LinkedIn post generator4,000-character captions, but the first line does the work. Scripts with on-screen text and voice.
TikTok script generatorA 100-character title, a 5,000-character description and a 500-character tag list, all returned separately.
YouTube description generator500 characters, a single topic tag rather than a hashtag block, threads as numbered posts.
Threads post generatorA 100-character title and a 500-character description written for search, plus alt text.
Pin description generatorA 300-character title and a body of up to 40,000, no hashtags, no marketing voice, a suggested flair.
Reddit post writerA broadcast or channel message of up to 4,096 characters, written to be read on a phone, no hashtags.
Broadcast message generatorThese are the limits each card is counted against. The “shown before more” column is the part of a post most people actually read, which is why the hook goes there.
| Platform | Post limit | Shown before “more” | Hashtags | Also returned |
|---|---|---|---|---|
| X (Twitter) | 280 characters (25,000 with Premium); a link counts as 23 | All of it | 0–2 | Thread of up to 25 posts, video script |
| 2,200 characters | About 125 characters | Up to 30, 3–5 recommended | Alt text, carousel slides, Reels script | |
| 63,206 characters | About 477 characters | 0–3 | Carousel slides, video script | |
| 3,000 characters | About 210 characters | 3–5 | Document carousel slides, video script | |
| TikTok | 4,000 characters | About 100 characters | 3–6 | Photo-carousel slides, video script |
| YouTube | Title 100, description 5,000, tags 500 | Roughly the first two lines of the description | Up to 15, 3–5 recommended | Title, tag list, Shorts script |
| Threads | 500 characters | All of it | One topic tag | Thread of up to 20 posts, video script |
| Title 100, description 500 | About 50 characters of the description | Up to 20, 2–5 recommended | Pin title, alt text, Idea Pin script | |
| Title 300, body 40,000 | The title | None | Suggested flair | |
| WhatsApp / Telegram | 4,096 characters | The first screen | None | — |
Limits are the platforms’ own published or documented values as of September 2026. The counter on each card turns amber at 90% and red over the limit, and a post that comes back over a hard limit is rewritten before you see it rather than trimmed mid-sentence.
The multi-platform post generator does not paste the same caption ten times. Each card is written to that network’s length, habit and audience.
The same brief can come back as a numbered X thread, a slide-by-slide carousel or a short-form video script with on-screen text and voice lines.
No tool can promise a viral post, and this one does not. What it can do is write the first line the way posts that travel are written — and give you three of them to choose from.
The first line is the only line most people read. Each card offers three: usually a specific claim, a question the reader already has, and a contrast or number. Pick the one that fits and the caption reflows under it.
No “game-changer”, no “unleash”, no opening with “Exciting news!” The generator is told to lead with the specific thing and to cut filler, and you can add your own words to avoid under Details.
The Refine menu rewrites every card at once: shorter, a punchier hook, more casual or more professional, ending on a question, fewer or more hashtags, or a completely different angle on the same facts.
Instagram shows about 125 characters, LinkedIn about 210, Facebook about 477 before the fold. The generator puts the point inside that window and the detail after it, and the counter shows you where the cut falls.
Prices, dates, names and links are kept exactly as you typed them, on every platform. If the brief says 15% and Friday, no card says 20% or Thursday, and none invents a claim you did not make.
Sixty-four languages across seventy-three regional variants, or it detects the language of your brief. Hashtags stay in the language the post is written in.
Hashtags are a search habit, not a decoration, and the right number is different on every network. The generator returns three sets and lets you decide which go in.
The tool does not report search volumes for hashtags, because no free source of that data exists and inventing one would be worse than none. The sets are the AI’s judgement of what fits the post, and you know your audience better than it does.
The brief below was typed into the tool on 18 September 2026 with the Friendly tone, the Announce goal, Standard length, light emoji, and a brand, link and call to action set under Details. Everything on the right is what came back, character counts included.
We ship our new kraft mailers on Friday 26 September. Pre-orders get 15% off until then. Made from 100% recycled paper, printed in Leeds, and they fit through a letterbox.
Details: brand Kraft & Co · audience small online shops that ship their own orders · link kraftandco.example/mailers · call to action “Pre-order before Friday” · keyword “recycled packaging” · avoid “game-changer”, “unleash”
Ever tried slipping a package through a tiny letterbox? Our new kraft mailers drop on Friday 26 Sept, 100% recycled, printed in Leeds and sized for any letterbox. Pre‑order now for 15% off – https://kraftandco.example/mailers. Secure yours before Friday
Can your parcels glide through a letterbox?
Our fresh kraft mailers arrive Friday 26 Sept. Made from 100% recycled paper, printed locally in Leeds, and cut to slip through any standard letterbox – a perfect match for small online shops.
Pre‑order today and lock in a 15% discount before the launch. 🌿
Link in bio.
Pre‑order before Friday
#KraftMailers #RecycledPackaging #LetterboxReady
Looking for packaging that fits every mailbox?
We’re launching new kraft mailers on Friday 26 September. They’re crafted from 100% recycled paper, printed in Leeds, and engineered to slide through standard letterboxes – ideal for independent online retailers.
Pre‑orders earn a 15% discount until launch. https://kraftandco.example/mailers
Ready to upgrade your shipping? Pre‑order before Friday
#KraftMailers #RecycledPackaging #LetterboxFit
Three things worth noticing. Every fact survived on every platform: 26 September, 15%, recycled paper, Leeds, the letterbox. Instagram says “link in bio” while X and LinkedIn print the URL, because captions cannot carry a link. And the honest part: the call to action landed as its own closing line on Instagram rather than woven into a sentence, and the X hooks offered “faster deliveries”, which the brief never claimed — the kind of line you delete in two seconds, and the reason the cards are editable.
One brief, one request, and the format decides the shape of every card.
| Format | What you get | Platforms |
|---|---|---|
| Post | The native unit for the platform: a caption with hashtags on Instagram and TikTok, a 280-character post on X, a title plus description plus tags on YouTube, a title plus body plus flair on Reddit, a message on WhatsApp. | All ten |
| Thread / carousel | On X and Threads, a numbered thread of two to 25 posts, each inside the limit. On Instagram, LinkedIn, Facebook and TikTok, a slide-by-slide carousel with a title and a few lines per slide, plus the caption that goes under it. | X, Threads (thread); Instagram, LinkedIn, Facebook, TikTok (carousel); a post elsewhere |
| Video script | A spoken hook, a table of scenes with a time stamp, the on-screen text and the voice line, a closing call to action, and an estimated running time from the spoken word count, alongside the caption to post it with. | TikTok, Instagram Reels, YouTube Shorts, Facebook, LinkedIn, X, Threads, Pinterest; a post on Reddit and WhatsApp |
The tone you pick is the same everywhere. The shape is not. These are the habits the generator writes to, and the ones worth knowing when you edit.
A tweet generator that pads to 280 has missed the point. The card says one thing, a link costs 23 characters, and a thread carries the rest.
A free Instagram caption generator earns its keep in the first 125 characters. Short lines, a line break before the hashtag block, “link in bio” because captions cannot carry a link.
A LinkedIn post generator has about 210 characters to make the reader expand. One-sentence paragraphs, a lesson or a number, the link in the first comment rather than the body.
Facebook allows a book-length post and shows about 477 characters of it. The card reads like a person talking, asks something, and uses hashtags rarely if at all.
The video does the talking, so a TikTok script generator writes the spoken hook and the scenes, and the caption stays short, curious and tagged with three to six hashtags.
A YouTube description generator puts the keyword and the promise in the first two lines, the detail and the timestamps after, and returns a separate title under 100 characters and a tag list under 500.
Threads gives you 500 characters and a single topic tag instead of a hashtag block. A Threads post generator writes a conversational opener and keeps the tag to one.
Pins are found months later by search, so a Pinterest pin description generator writes a keyword-led title under 100 characters and a plain description under 500 that says what the pin shows.
Redditors punish anything that reads like an ad. A Reddit post writer gives you a plain 300-character title, a body that gives before it asks, no hashtags, and a flair to file it under.
A broadcast is read one-to-one on a phone. The card is written as a message — a greeting if the tone allows, the news, the one thing to do — within 4,096 characters and with no hashtags.
Titles, captions, thread posts, slides, script rows, tags and alt text are all editable in the card, and the counters follow your edits as you type.
Copy a single card with its hashtags, copy the whole set with a heading per platform, or download it as Word, PDF or plain text for whoever schedules the posts.
The honest version of “viral-ready” is this: the hook is specific, the post fits the preview, the hashtags fit the platform, and nothing in it reads like an ad. That is what the generator does. Whether it travels is up to the audience.
Turn one idea into the caption, the thread and the script for the same day without writing it three times.
Announce the offer, the new stock or the opening hours on every channel your customers use, with the price and the date exactly right.
Draft a launch across ten platforms in one request, export the set as a Word document, and hand it to whoever schedules it.
A tool that turns a short description of what you want to say into finished posts for social networks. Unlike a general chatbot, a dedicated social media content writer knows each platform’s character limit, how much of a post shows before “more”, how many hashtags belong, and which extra fields it needs — a title on YouTube, alt text on Instagram, a flair on Reddit — and returns each post already in that shape.
Yes. Every platform, format, tone and goal is available without an account, within a per-request word allowance shown next to the brief. Signing in raises the allowance, and Pro removes the guest limits and the ads. The pricing page lists exactly what each plan includes.
X (Twitter), Instagram, Facebook, LinkedIn, TikTok, YouTube, Threads, Pinterest, Reddit, and WhatsApp or Telegram broadcasts. Each post is counted against that platform’s limit — 280 characters on X with links counted as 23, 2,200 on Instagram, 3,000 on LinkedIn, 500 on Threads, a 100-character title and 5,000-character description on YouTube, and so on. A post that comes back over a hard limit is rewritten before you see it, and the counter on each card turns amber near the limit and red over it.
Yes. Pick as many platforms as you like, or all ten, and one request returns one card per platform. They are not copies: the X post says one thing in 280 characters, the LinkedIn post is written to earn its “see more”, the Reddit post drops the marketing voice, and the Instagram caption says “link in bio” because captions cannot carry a link. The facts in your brief are the same in all of them.
Yes. Choose the Thread / carousel format. On X and Threads you get a numbered thread of two to 25 posts, each inside the limit, with the hook in the first post and the ask in the last. On Instagram, LinkedIn, Facebook and TikTok you get a carousel: a title and a few lines for each slide, plus the caption to post it with. Every post and slide is editable in place.
Yes. Choose the Video script format and each video platform returns a spoken hook, a table of scenes with a time stamp, the text shown on screen and the voice line, a closing call to action, and an estimated running time worked out from the spoken words. The caption to publish the video with comes on the same card. Reddit and WhatsApp have no video format, so they return a post instead and the card says so.
Each card returns three sets — broad, niche and branded — as chips under the caption. Click a chip to add it to a hashtag block at the end of the caption, click again to remove it, and the counter shows the count against that platform’s maximum and recommendation: three to five on Instagram and LinkedIn, three to six on TikTok, none to two on X, one topic tag on Threads, none on Reddit and WhatsApp. The tool does not report hashtag search volumes, because no free and reliable source for them exists.
The hook is the first line, and on most platforms it is the only line people see before deciding whether to expand. The generator writes three that take different approaches — typically a specific claim, a question the reader already has, and a contrast or a number — and shows them as buttons above the caption. Click one and it becomes the opening line without changing the rest of the post.
No tool can promise that, and this one does not. What it does is write the post the way posts that travel are written: a specific first line inside the preview window, one idea, no filler, hashtags that fit the platform, and nothing that reads like an ad. Whether it spreads depends on your account, your timing, the image or video and your audience. Use the Refine menu to try a punchier hook or a different angle before you publish.
Yes, in 64 languages across 73 regional variants, or it detects the language of your brief. Hashtags are written in the language of the post. Character limits are the same in every language, but scripts such as Japanese or Arabic carry more meaning per character, so the same brief often comes back shorter.
Closer than a general chatbot, because the tone, goal, brand name, audience, keywords to include and words to avoid are set explicitly under Details and kept between posts. Not exactly — the cards are meant to be edited, and changing two or three words is usually the difference between a post that sounds like a template and one that sounds like you.
The brief and your details are sent once in order to write the posts, and are not stored as text afterwards. The posts, your platform choices and your details are kept in your own browser so they are there when you come back. See the privacy policy for the detail.
Every tool here runs on the same AI powered writing assistant, so the tone you choose for a post behaves the same way in the email writer or the paraphraser. Run a caption through the grammar checker before it goes out, or count it with the word counter. One plan covers all of them.
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