RecurPost Instagram Hashtag Generator: Free AI Tool for Instagram Posts
RecurPost’s Instagram Hashtag Generator turns a short post description into a list of 15 hashtag candidates in a single step. Enter the description, generate the list, then choose the five hashtags Instagram allows and copy them into your caption or into RecurPost’s composer. No login or payment is required to use RecurPost’s generator.
The generator is one of RecurPost’s free tools, and RecurPost runs a matching hashtag generator for nine other platforms.
No sign-up
15 candidates per list
Copy in one click
What RecurPost's Instagram Hashtag Generator Does
RecurPost’s Instagram Hashtag Generator reads a short keyword or content description and returns a numbered list of 15 hashtag candidates, from broad to niche and audience-specific, and you choose which to keep.
Instagram allows five hashtags on a post, so the choosing matters. A useful five usually mixes three kinds of tag: broad discovery tags used across a niche, niche tags tied to the post’s specific topic, and engagement tags that speak to the audience you want replying and saving. The generator does not sort its list into those groups, so you make that call when you pick.
Because the generator needs no account, it suits drafting a fresh list for each client post before anything is scheduled.
Candidates per list
Every list returns 15 numbered hashtags to choose from; Instagram allows five.
Instagram hashtag limit
Instagram caps a post or Reel at five hashtags, down from thirty since December 2025.
Tone presets
Twenty-two tones, from Professional and Informative to Witty, Bold, and Urgent, in five languages.
Sign-up steps
No account needed to generate hashtags.
How to Generate Instagram Hashtags in Four Steps
Using RecurPost’s Instagram Hashtag Generator takes four steps, and all four are free and need no sign-up.
Describe the post
Type a short description or keyword for the post. RecurPost needs only a phrase, not a full caption — the field’s own example is “B2B SaaS marketing strategy.”
Open Optional fields
Optional fields adds a keyword to carry into the set, 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 list
RecurPost returns a numbered list of 15 hashtag candidates in the results box below the form.
Copy the tags
One button copies the whole list out of the results box. Delete all but the five you want, paste them into the Instagram caption or the first comment, then publish or schedule the post.
For instance, a freelance social media manager batch-scheduling five client Instagram accounts on a Sunday night can generate a fresh list of candidates for each post and pick five from each. The generator itself needs no login.
Where an Instagram Hashtag Set Does Not Transfer
The Instagram Hashtag Generator is one of eight free tools published alongside RecurPost’s social media scheduler, each built to prepare a post before it is scheduled. RecurPost runs a matching hashtag generator for nine other platforms — Facebook, TikTok, X, YouTube, Pinterest, Threads, LinkedIn, Bluesky, and Google Business Profile — because a five-tag Instagram selection rarely suits another network unchanged. The four below differ from Instagram most sharply. Pinterest and Bluesky run their own generators as well, and the Hashtag Generator hub lists all ten side by side with each platform’s hashtag limit.
TikTok
TikTok reads only the first five hashtags in a caption and ignores the rest, so a longer list has to be trimmed to five there too.
Threads
Threads applies a single topic tag per post, and every other hash-prefixed word is plain text. The Threads generator returns candidates to choose one from rather than a set to paste.
YouTube
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 generator returns a hashtag list to paste into the description; it does not fill Studio’s separate Tags field.
Google Business Profile
A Google Business Profile post does not turn hashtags into links, so tag count stops being the useful lever. Hashtags in GBP post copy are plain text, and an Instagram tag block adds nothing to it.
Checking the destination before reusing a set fits any agency or freelancer running two or more platforms per client. A freelancer who posts to Instagram alone for every client can stay on this page and skip the rest.
Getting Hashtags Into a Scheduled RecurPost Post
RecurPost’s Instagram Hashtag Generator runs separately from the scheduler, so moving a set into a post is a manual copy-paste step. Copy the five tags you chose straight into RecurPost’s Instagram composer alongside the caption, or, inside a RecurPost account, save them as a Bag of Tags (the free generator on this page saves nothing) if the same client reuses them across several posts. RecurPost’s Instagram scheduler then holds the queue and publishes the post at its scheduled time.
For example, an agency scheduling a client’s Reel and a static carousel for the same week can generate a list for each and choose a different five for the Reel and the carousel. The agency can then bulk-schedule both through RecurPost’s scheduling and publishing tools in a single sitting. RecurPost’s AI content tools can also draft the caption, so the hashtag set and the caption come from the same workflow instead of two separate tabs.
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.
How Many Instagram Hashtags to Use, and What Mix
Where a niche-heavy mix fits
Instagram caps a post or Reel at five hashtags, so every one of the five has to earn its place. Suppose one agency runs a twelve-account client roster. Three of those accounts belong to small studios with fewer than 5,000 followers each. The three studio accounts do better with a niche-heavy mix, because niche tags are specific enough to place a post within a smaller, more relevant hashtag community instead of competing with millions of generic posts.
Where a discovery-heavy mix fits
Two of the accounts in that same roster belong to larger, multi-location brands with an established following. Those accounts can lean on broader discovery tags, because a larger, established audience is more likely to be searching the busier hashtags. This is a working judgement, not an Instagram rule.
Where one list does not work
Applying the same hashtag list to all five accounts fails to account for each account’s audience and niche. A studio account gains little from a hashtag with ten million posts already attached to it, and a large brand account gains little from a hashtag so narrow that almost nobody searches it. Generate a fresh set per account rather than reusing one list across a roster.
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 Instagram 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.
Instagram Hashtag Generator FAQs
How does RecurPost's Instagram Hashtag Generator work?
RecurPost’s Instagram Hashtag Generator reads a keyword or short content description and generates a numbered list of 15 relevant hashtag candidates for an Instagram post, and you choose the ones to keep. The generator needs no account.
How many hashtags should an Instagram post use?
Instagram caps every post and Reel at five hashtags, a limit it introduced in December 2025. RecurPost’s generator returns 15 candidates, so you choose which five to keep: a niche-heavy five for a small account or a discovery-heavy five for a larger one. The 15 is the size of the generator’s list, not an Instagram allowance.
Is RecurPost's Instagram Hashtag Generator free to use?
Yes. RecurPost’s Instagram Hashtag Generator is free with no sign-up or payment required. The generator doesn’t require a RecurPost account.
Does RecurPost have hashtag generators for other platforms?
RecurPost runs a separate hashtag generator for each of nine other platforms: Facebook, TikTok, X, YouTube, Pinterest, Threads, LinkedIn, Bluesky, and Google Business Profile. Each platform has its own page that explains that platform’s hashtag limit and how to choose tags for it.
How do I use the generated hashtags in a scheduled RecurPost post?
RecurPost allows you to copy the hashtags you chose into its Instagram composer alongside the caption, then schedule or bulk-schedule the post as usual. Inside a RecurPost account you can also save frequently reused hashtag sets as a Bag of Tags (the free generator on this page saves nothing), so the same mix is one click away on the next post for that account.
20 social accounts. 3 team members. One publishing queue.
RecurPost’s Agency plan covers 20 social accounts, including Instagram, and includes 3 team members for $79 a month, with extra profiles at $4 each. See RecurPost’s pricing and plans for the full add-on list, or start a free 14-day RecurPost trial with no credit card required.
No credit card required · Starter, Personal, and Agency plans