RecurPost Hashtag Generator: Free AI Tool for 10 Social Platforms
The RecurPost Hashtag Generator builds a hashtag set for one platform at a time. It does not return one generic list meant to work everywhere. Ten separate generators sit behind this page, one for each network: Instagram, Facebook, X (Twitter), TikTok, YouTube, Pinterest, Threads, LinkedIn, Bluesky, and Google Business Profile.
Describe the post in a few words or paste an existing caption, and RecurPost hands back hashtags sized and styled for the network you are posting to. The tool is free, it runs in the browser, and it does not ask for a sign-up. It is one of RecurPost’s free tools.
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10 platform generators
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Access 10 Platform-Tuned Generators From One Tool
Post the same client photo to Instagram, Facebook, and LinkedIn in one sitting and you need three different hashtag sets, not one list pasted three times. RecurPost solves that with ten platform versions of the same generator. Each one takes the same input — a short description of the post, or an existing caption — and returns a set styled for the network you picked.
Each platform rewards a different hashtag count and style. Instagram caps a post or Reel at five hashtags and rewards a mix of broad, niche, and branded tags inside that ceiling. LinkedIn works differently: it publishes no cap, and three to five sharp, topical tags is the working range, because LinkedIn reads hashtags as topic markers rather than as the discovery feed it retired. X caps standard posts at 280 characters, so one or two hashtags is the practical ceiling before they crowd out the message. Facebook hashtags carry less discovery weight, so one to three is enough. TikTok reads only the first five hashtags in a caption. Threads applies a single topic tag per post, so the Threads generator returns candidates to choose one from rather than a block to paste.
The Instagram generator mixes broad discovery tags with niche ones. The LinkedIn generator pulls tighter, toward industry-specific tags built for a professional feed. An agency running a client product launch across five networks gets five sets that each match their destination.
RecurPost’s setup fits anyone posting the same content to more than one platform. It is less useful to someone who posts to a single network for every client — in that case, bookmark that one platform’s generator page and skip the comparison.
Trending hashtag data is reassessed for every platform every four hours.
The multi-tier mix of discovery, engagement, and niche tags is drawn from them.
Performance-verified selections, credited with 23%+ higher engagement across categories.
One tuned page per network, Instagram through Google Business Profile.
Platform-Wise Post Hashtag Limits
RecurPost’s Hashtag Generator aligns with each platform’s own rules rather than applying one shared count. Each network sets a different limit, based on the characters it allows and on what it uses hashtags for: LinkedIn reads them as topic markers for a professional audience, Pinterest reads them as descriptive search terms, and Google Business Profile does not render them as clickable at all. The limits every generator works to are below.
1–3 hashtags per post
Up to 5 per post or Reel
No limit; 3–5 working range
No limit; X recommends max 2
No limit; 3–5 in an 800-character description
Up to 3 description tags show above the title
One topic tag per post
First 5 in the caption only
Not clickable; focus on the post copy
Up to 8 per post, with 3–5 recommended
How to Generate Hashtags in Four Steps
The generator on this page runs in four steps, and all four run free in the browser with no sign-up. The page you are on is what makes the output platform-specific, so there is no platform dropdown to set.
Describe the post
The one required field asks what the hashtags are about. A few words is enough — “B2B SaaS marketing strategy” is the field’s own example — or paste an existing caption.
Open Optional fields
Optional fields adds three controls: a keyword the set should carry, a language (English, French, Spanish, German, or Italian), and a tone. Twenty-two tone presets are available, from Professional and Informative to Witty, Bold, and Urgent.
Generate the set
RecurPost returns a hashtag set sized and styled for this platform. Regenerate as often as a batch needs; RecurPost sets no cap.
Copy the hashtags
One button copies the whole set out of the results box, ready to paste into the post or into the RecurPost composer.
A freelancer preparing a week of client TikTok and YouTube Shorts posts opens each platform’s generator directly rather than reusing one set, because the count and style should match the destination rather than a general average. This page fits a quick first pass or a platform-agnostic caption — a blog excerpt repurposed into a newsletter cross-post is a good example. It does not fit a client post that has to perform on one specific network; for that, open the matching platform page.
Which Platform Generator to Open for a Given Post
The right generator to open depends on where the post is actually going, not on where the content came from. The same testimonial clip posted to TikTok, Instagram Reels, and YouTube Shorts in one afternoon needs three separate visits, because each network reads hashtags differently. Four of the ten are below; the rest are in the sub-nav at the top of this page.
Pinterest treats hashtags as descriptive search terms rather than as a discovery feed and publishes no limit at all. Three to five specific tags at the end of an 800-character description perform better there than broad category ones.
YouTube picks up to three of a video description’s hashtags to show above the title, choosing them itself rather than taking the first three, and ignores every hashtag on a video carrying more than 60 of them. The YouTube generator writes for that description field, not for YouTube Studio’s separate Tags field.
Bluesky accepts up to eight hashtags per post, with three to five the working recommendation, because every tag character comes out of the same 300-character post. The Bluesky generator sizes the set to that range rather than to a long caption’s tag block.
Google Business Profile does not render hashtags as clickable at all. The GBP generator therefore focuses its output on the post copy rather than on tag count.
RecurPost built this as one overview page plus ten separately tuned platform URLs rather than a single page with a platform dropdown, so each generator can be bookmarked and reused on its own without navigating back through a selector every time. Matching the generator to the destination fits any agency or freelancer running two or more platforms per client, which covers most client work.
Bags of Tags: Save a Hashtag Set Once, Then Reuse It
The generators on this page need no account. Saving what they produce does. Open Plug-ins beside your account name at the bottom left of the RecurPost dashboard, click Manage under the Hashtags box, and select a library. Add a keyword there and RecurPost returns hashtags suited to that network, stored as Bags of Tags: named, reusable groups you build once and pull into future posts without regenerating. An agency running eight client accounts can save one bag per client niche — real estate, B2B SaaS, insurance — and reuse each on that client’s recurring posts.
Bags of Tags pairs with RecurPost’s evergreen and seasonal content libraries: schedule a recurring post from the evergreen library, attach the matching bag, and the manual tagging step disappears from every reshare. It fits recurring and evergreen content, where the same set works post after post. It does not fit a genuinely new topic or a trending moment — a bag saved for last month’s campaign will not carry the tags a fresh news hook needs.
No credit card. One composer covers a full client mix, so a generated hashtag set moves into a scheduled post rather than into an intermediate spreadsheet.
When the Hashtag Generator Fits and When It Doesn’t
RecurPost’s Hashtag Generator fits anyone posting the same content to more than one platform, and any agency or freelancer running two or more networks per client. It fits a first-draft caption meant to be reused, and it fits recurring evergreen posts, where a saved Bag of Tags removes the tagging step entirely.
It does not replace platform-specific research for a brand entering a new, unfamiliar niche, where the right tags depend on competitor and community context the generator cannot see. It does not fit a trending moment either, because a saved set is a snapshot. And it does not publish anything on its own — scheduling needs a connected RecurPost account.
The sets that perform are worth saving as Bags of Tags and reusing on that client’s recurring posts. A freelancer who posts to a single network for every client can skip the comparison altogether and bookmark just that one platform’s generator page.
Hashtags Are Not a Caption or a Title
Hashtags tag the post for discovery. That is this tool’s only job.
The caption carries the body text the hashtags sit under. RecurPost’s post generator writes that one.
A title heads the content above both. RecurPost’s title generator handles those.
RecurPost splits the three jobs across separate free tools, each running under the same no-sign-up rule, and you can reach the full set from RecurPost’s free tools hub.
Hashtag Generator FAQs
What social platforms does RecurPost’s Hashtag Generator support?
RecurPost’s Hashtag Generator covers 10 social platforms: Instagram, Facebook, X (Twitter), TikTok, YouTube, Pinterest, Threads, LinkedIn, Bluesky, and Google Business Profile. Each platform has its own generator page tuned to that network’s hashtag norms.
Is RecurPost’s Hashtag Generator free to use?
RecurPost’s Hashtag Generator is free. It runs in the browser and does not require a sign-up. You can generate hashtags for any of the 10 supported platforms without creating a RecurPost account first.
Why doesn’t the same hashtag set work on every platform?
Each platform rewards a different hashtag count and style. Instagram caps a post or Reel at five tags and rewards a broad-plus-niche mix inside that. LinkedIn publishes no cap and reads tags as topic labels, where three to five accurate ones do the work. Google Business Profile does not render hashtags as clickable at all. RecurPost’s platform-specific generators apply the count and style that fits the destination platform instead of one shared list.
What is a Bag of Tags, and how does it help an agency manage several clients?
A Bag of Tags is a named, reusable hashtag set you save inside RecurPost and pull into future posts without regenerating. An agency can save one Bag of Tags per client niche and reuse it on that client’s recurring posts, cutting out repeat manual tagging. Saving a bag happens in the RecurPost dashboard, so it needs an account, while the generator on this page does not.
Which hashtag generator should I use for a client’s Instagram Reel versus a Google Business Profile post?
Use the RecurPost generator that matches the platform the post is actually going to. Open the Instagram generator for the Reel and the Google Business Profile generator for the GBP post. Each one applies the tag count and style built for that specific platform.
Does RecurPost’s Hashtag Generator stay current with hashtag trends?
RecurPost’s Hashtag Generator reassesses trending hashtag data for each platform every four hours, so the tags it returns reflect current activity rather than a static list.
20 social accounts. 3 team members. One publishing queue.
RecurPost’s Agency plan covers 20 social accounts and includes 3 team members for $79 per month, with an extra teammate priced at a flat $20 per month on any plan. Generate your hashtags here, save the set as a Bag of Tags, and schedule the post across every client account under that one plan. See plans and pricing for every plan and add-on.
No credit card required · Starter, Personal, and Agency plans