Free AI hashtag generator — built per platform, not one-size-fits-all
Type a topic and get a hashtag set tuned for the platform you pick — Instagram, TikTok, LinkedIn, X, Threads, YouTube, or Facebook. Each platform follows its own rules. The AI follows them too.
Free tier: 5 generations per day. Sign up for unlimited generations baked into the SocialCal composer.
Platform-specific hashtag generators
Each platform has its own hashtag rules. Open the dedicated page for the one you are writing for.
What this generator is for
Three jobs the same set of seven generators does very differently.
Cross-posting one piece of content to many platforms
One Reel, one TikTok, one Threads post, one X tweet — but four very different hashtag strategies. Generate a set per platform from the same topic instead of dumping the same block everywhere.
New-account growth and audience discovery
Fresh accounts have no algorithmic signal. The hashtag set is the only way to tell the platform which audience pool to seed your content into. Niche-led generation is how that's done.
Recurring content series
A weekly content series performs better when every episode shares the same tag spine. Generate the set once, lock it, and reuse — across the platform pages or saved as a SocialCal template.
Why this generator is different
Six decisions that separate this tool from the generic hashtag dumps at the top of Google.
Built per-platform, not one-size-fits-all
Instagram wants 30 lowercase tags, TikTok wants 4-6 niche-led, LinkedIn wants 3-5 capitalized, X wants 1-2, Threads wants exactly 1. The generator returns the right shape for the platform you pick, not a generic dump.
Mix of broad, niche, and branded
Generic tags like #love drown your post. Hyper-niche tags reach almost no one. The generator returns a balanced mix — broad for reach, niche for relevance, branded when the topic warrants — instead of stacking the same kind of tag five times.
Avoids restricted and shadowbanned tags
The model is instructed to skip known restricted tags (the ones Instagram and TikTok rotate in and out of suppressed status). You should still verify a tag's recent posts page before betting a paid campaign on it.
Free, no signup
5 generations per day, 20 per week per IP — generous for any normal use. Past that, sign up for SocialCal and you'll have unlimited generations baked into the post composer.
AI that actually understands the platform
Each platform gets its own AI prompt built around how that platform actually surfaces tagged content. The same topic returns a fundamentally different set on Instagram vs LinkedIn vs Threads — because the platforms are fundamentally different.
Copy with one tap
Each result has a copy-all button and per-tag copy. The set is formatted as a clean block ready to paste into your caption, first comment, or video description.
How each platform uses hashtags differently
Recommended count, hard cap, tag style, and where to put them — every platform's actual rules at a glance.
| Platform | Recommended | Hard cap | Style | Best placement |
|---|---|---|---|---|
| 3-5 or all 30 | 30 max | lowercase, broad+niche+branded | first comment | |
| TikTok | 4-6 | no hard cap | niche-led, lowercase | caption end |
| 3-6 | no hard cap | topical, sometimes branded | post end | |
| Threads | 1 | 1 only | specific niche | top or end |
| 3-5 | no hard cap | CamelCase, professional | post end | |
| X / Twitter | 1-2 | no hard cap | short, community-led | inline or end |
| YouTube | 3-5 | 15 (else all ignored) | searchable, lowercase | description + 1-2 in title |
Hashtag generator FAQ
Why does the generator return different tags for the same topic on different platforms?+
Because the right hashtag set is fundamentally different per platform. Instagram rewards 20-30 mixed tags, TikTok rewards 4-6 niche-led tags, X rewards 1-2 short tags inside a 280-char budget, and Threads only allows one tag per post. The generator uses a platform-specific system prompt for each surface so the output matches the platform's actual rules.
How is this different from running ChatGPT and asking for hashtags?+
ChatGPT will happily give you 20 generic tags for any platform. This tool wraps an AI model with platform-specific knowledge baked into the prompt: how many tags Instagram rewards in 2026, why TikTok's first tag matters most, how to use the LinkedIn tag-following graph, why Threads only allows one. You get a set tuned to the platform, not a generic list.
Will copying these tags get my post shadowbanned?+
Shadowban risk on Instagram and TikTok comes from two things: using restricted tags (some get rotated in and out of suppressed status, often weekly), and posting the exact same big tag block on every post. The generator avoids known restricted tags. To stay safe, generate a fresh set every few posts rather than reusing the same block forever.
Are the trending tags actually trending right now?+
The AI model plus the platform-specific prompt picks tags that are stable across recent quarters — community tags like #booktok, #buildinpublic, #devTwitter that have lasted years. For ultra-current trends from this week's viral content, replace one of the generated tags with the current trending one from the platform's own discover/explore tab.
Is the tool really free?+
Yes. 5 generations per day and 20 per week per IP — that covers more posts than most creators ship in a month. Beyond that, a SocialCal subscription gives unlimited generations baked into the post composer, plus scheduling, analytics, and the same caption shipping to 10 platforms in one click.
Can I generate hashtags in languages other than English?+
Yes — describe the topic in the language you want output in. The model is instructed to follow the input language. For non-English content, you'll generally get a mix of English and native-language tags, since most platforms have international tag communities for each language.
Does the generator avoid banned hashtags?+
It's instructed to. The list of restricted tags on Instagram and TikTok rotates frequently, so as a final safety check, tap any tag in the platform's app before posting — if the recent-posts feed for that tag shows a warning or comes up empty despite a high follow count, swap it out.
Can I use this for client work?+
Yes. The free tier is rate-limited per IP, so a single agency on one VPN can hit the cap fast — for that case, a SocialCal subscription gives unlimited generations and removes the daily cap entirely.
More Free Tools
Explore our full suite of free social media tools — no signup required.
Schedule across every platform with this generator built in
SocialCal's composer uses the same hashtag generator you just used — with per-platform tag sets, scheduled posting across X, Instagram, LinkedIn, TikTok, Threads, Facebook, and YouTube, plus unlimited generations.
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