Free AI Social Media Tool

Free AI
Social Media
Hashtag Generator

Describe the post, pick the platform, and get a tight set of hashtags built around the topic, the audience, and the network instead of the same generic block you paste under everything.

Works across

Instagram, TikTok, LinkedIn, X, Threads, Facebook, YouTube, Pinterest

Mix structure

Niche, audience, value, platform, brand

Built for

No signup, no thirty-tag dump

1. Describe the post or topic

Write the caption, video idea, post angle, or keyword theme in plain language. One to three sentences works best.

Specific beats generic. No need to keyword-stuff the draft.0/700
Try an example
2. Shape the set

Pick the platform and angle

The platform changes the format cue and the number of tags worth keeping. The goal nudges the discovery slot.

Platform

Five relevant tags is plenty on Instagram. The old thirty-hashtag block does not help.

Goal

Keep one broader discovery tag in the mix.

Useful for launches, recurring series, and brand recall. Enter the tag without the hash.

3. Copy the set

Your hashtag set

Tap any tag to include or remove it, then copy the whole set or just the tags you picked.

Describe a post and generate

Write your caption or video idea on the left, pick the platform, then click Generate hashtags.

Hashtags that match the post

A free AI social media hashtag generator is most useful when it helps each platform get its own version of the set.

Most accounts end up with one big block of tags that gets pasted under everything, and after a while it stops describing any particular post, which is roughly the opposite of what hashtags are for. A good set is small, it leans on the actual topic, it points at the audience most likely to care, and it includes a format cue that fits the platform you are posting to.

That is what this generator does. You describe the post in plain language, pick the platform, and it gives you a niche tag, an audience tag, a value tag, a platform cue, and a brand or discovery slot, plus a pile of alternates you can swap in. Switch from Instagram to LinkedIn to Threads to X and the advice on how many to keep changes with it, because five tags under an X post is four too many.

The example buttons load real-feeling posts for a few platforms, so you can see the shape of a platform-aware set before you write your own.

1. Describe the real post

Use the caption draft, video idea, or post angle, not a single vague keyword. A sentence or two is enough.

2. Pick the platform

The platform sets the format cue in the mix and the count it nudges you toward, since the right number is not the same everywhere.

3. Trim, then reuse the topic

Keep the tags that fit, drop the rest, and repeat the same topic words in the caption so the whole post points one direction.

Free AI social media hashtag generator FAQ

What is a social media hashtag generator?

A social media hashtag generator turns a post idea, caption, or topic into hashtags you can copy into a post. This one is built for cross-platform planning, so the set changes when you switch between Instagram, TikTok, LinkedIn, X, Threads, Facebook, YouTube, and Pinterest.

Do hashtags still work in 2026?

They work, but as support rather than the main engine. Across most platforms now the bigger signals are the words you actually say, the text on screen, and the caption itself, so the hashtags should reinforce the same topic instead of trying to carry the post on their own.

How many hashtags should I use?

It depends on the platform, which is why this tool changes its advice when you switch. Around five relevant tags is fine on Instagram, three to five suit TikTok and LinkedIn, Pinterest likes two to five descriptive ones in the pin text, YouTube wants a couple above the title and the rest in the tags box, Facebook and Threads work best with a very small set, and on X one or two is genuinely plenty.

Is this hashtag generator free?

Yes. It runs in your browser, there is no signup, and you can generate, swap tags around, and copy the set as many times as you want.

I was looking for the Buffer hashtag generator. Can I use this instead?

You can use this as a no-signup alternative when you need a focused, topic-led set you can drop into your caption. When you want to schedule the finished post, Maeve handles that part.

Which platforms does it cover?

Yes. It also covers Threads and Facebook. Switching the platform changes the format cue in the set and how many tags it suggests you actually keep. If you only ever post to one platform, the dedicated Instagram and TikTok hashtag tools go a little deeper for those.

Should I use the same hashtags on every platform?

Usually no. The same topic can travel across networks, but the tags should be shaped for the platform, the audience, and the format. A LinkedIn topic tag, a TikTok discovery cue, and an X hashtag do not need to look identical.

Beyond hashtags

Once the post reads cleanly, the rest is just getting it out the door on time.

When the caption, the visuals, and the hashtag set are sorted, the part that usually goes sideways is the publishing, so Maeve keeps the planning, scheduling, approvals, and the actual posting in one place instead of spread across tabs and reminders.

Start planning in Maeve

Related tools

Instagram Hashtag Generator

Build a focused five-tag Instagram mix for posts, reels, carousels, and stories.

TikTok Hashtag Generator

Pair a tight TikTok hashtag set with search phrase ideas and on-screen hook prompts.

Instagram Caption Generator

Write the caption first, then let the hashtags reinforce whatever the post is actually about.

Social Media Character Counter

Check whether the final caption still fits once the hashtags, CTA, and links are in place.

Instagram Scheduler

Move the caption, the visuals, the hashtags, and the timing into one calmer publishing flow.