Choosing Hashtags That Actually Reach People
Describe your post, pick a platform, and this tool generates a hashtag set grouped into three tiers: broad, medium and niche. The grouping is the point. A list of thirty hashtags is easy to produce and mostly useless; what decides whether anyone sees your post is the mix of competition levels within it.
This tool is AI-powered, so it needs an AI key configured on the server. The AI is doing something it is genuinely good at — understanding what a post is about and suggesting language people actually search — rather than dressing up a lookup table.
At a glance
- Hashtags are grouped by competition, because a set made only of huge tags buries your post instantly.
- Each platform has a different sweet spot: 8 to 15 on Instagram, 3 to 5 on TikTok and LinkedIn, 1 to 2 on X.
- Niche hashtags carry the most weight for smaller accounts, despite the lower volume.
- Click the tags you want and copy them as a set, rather than taking the whole list.
How to use this tool
Describe the post
Be specific. "Behind the scenes of a small-batch coffee roastery" produces far better tags than "coffee", because the AI has something concrete to work from.
Choose your platform
The platform changes both the suggestions and the advice shown underneath, since what works on Instagram is actively counterproductive on LinkedIn.
Add your niche if you have one
An optional field, but a useful one. "Speciality coffee" narrows the results towards the community you are actually trying to reach.
Generate and read the groups
Broad tags are high-volume and highly competitive. Medium tags are where a growing account can realistically surface. Niche tags are closest to your exact topic and easiest to rank in.
Select a mix, then copy
Click individual tags or use Select all on a group. The selection bar at the bottom shows your count and copies the whole set formatted and ready to paste.
Why competition level matters more than volume
A hashtag with ten million posts sounds like ten million chances to be seen. In practice it is the opposite. Posts under a huge tag are pushed out of the recent feed within seconds, and the top posts section is dominated by accounts with follower counts you cannot compete with yet.
A hashtag with twenty thousand posts is a different situation. Your post stays visible in the recent feed for minutes or hours rather than seconds, and the top posts under it are within reach of a genuinely good post from a small account.
This is why the tool groups rather than just lists. A set made entirely of broad tags reaches nobody. A set made entirely of niche tags reaches a small but real audience. A mix gives you the reach of the niche tags plus a lottery ticket on the broad ones.
How many hashtags to use, by platform
The right number varies enormously, and using an Instagram-sized set on LinkedIn will make your post look like spam. These are the practical conventions rather than the hard limits.
- Instagram — allows 30. Most accounts do best with 8 to 15 genuinely relevant tags. Padding to 30 with loosely related tags dilutes the signal.
- TikTok — captions are short and hashtags eat into them. Three to five, mixing one broad and several specific.
- LinkedIn — three to five, and they should be professional topics rather than mood words. LinkedIn rewards restraint.
- Twitter / X — one or two. Every character counts against your limit, and heavy hashtag use reads as promotional.
- YouTube — only the first three appear above your title, so put the most important one first.
- Facebook — hashtags do very little here. Two or three at most, if you use them at all.
Relevance beats cleverness
Platforms increasingly use hashtags as a topic signal rather than a simple index. If your tags do not match what is actually in the post, you are teaching the algorithm to show your content to the wrong people, and their lack of engagement then suppresses your reach further.
This is why stuffing popular but unrelated tags backfires. Tagging a coffee post with a trending entertainment hashtag might get a brief spike of impressions from people who scroll straight past, and that poor engagement rate is the number the platform remembers.
The same applies to banned and restricted hashtags. Some innocuous-looking tags have been quietly restricted because of how they were misused, and including one can suppress the whole post. If a post's reach collapses for no obvious reason, checking the hashtags is a sensible first step.
Building a set you can reuse
Generating fresh hashtags for every single post is unnecessary work. What tends to work better is building three or four saved sets that map to the kinds of content you post regularly, then adjusting a few tags per post rather than starting from scratch.
Keep the niche tags stable and rotate the broader ones. The niche tags are what build a consistent topical signal over time, telling the platform what your account is about. The broad ones are opportunistic and can change freely.
Do watch for repetition, though. Posting the identical block of thirty hashtags on every single post is a pattern platforms have flagged as spammy in the past. Varying even a few tags each time avoids the issue entirely.
Where hashtags fit in the bigger picture
Hashtags are a distribution aid, not a substitute for the post being worth watching. On most platforms today, watch time, saves and shares matter far more than tags for how widely something spreads. Good hashtags on a weak post do very little.
They are most valuable for discovery by people who do not follow you yet, and for building a topical identity for your account over months. Treat them as one lever among several — alongside your hook, your first line, and your thumbnail or opening frame.
Once you have your tags, our AI Instagram Caption Helper can write the caption they sit under, and the Social Media Character Counter will tell you whether the whole thing fits within the platform's limit.
Formatting rules worth knowing
- No spaces inside a hashtag — #smallbatchcoffee, not #small batch coffee.
- Capitalisation does not affect matching, but #SmallBatchCoffee is far easier to read than #smallbatchcoffee, and screen readers handle it better.
- Punctuation and most symbols break a hashtag. Numbers are fine; a tag cannot be numbers alone.
- A hashtag ends at the first space or punctuation mark, so watch out for trailing full stops.
- Putting hashtags in the first comment rather than the caption works the same way on Instagram — it is purely a tidiness choice.
Frequently asked questions
How many hashtags should I use on Instagram?
Instagram allows 30, but 8 to 15 genuinely relevant hashtags usually performs better than a padded list of 30. Relevance matters more than quantity, and loosely related tags dilute the topic signal you are sending.
What is the difference between broad, medium and niche hashtags?
Broad tags have millions of posts and enormous competition, so your post is buried within seconds. Medium tags are mid-competition and realistically reachable for a growing account. Niche tags are specific to your exact topic, with the smallest audience but the best chance of actually being seen.
Do hashtags still work?
Yes, but less powerfully than a few years ago. Platforms now weigh watch time, saves and shares far more heavily. Hashtags remain useful for discovery by non-followers and for establishing what your account is about over time.
Can using the wrong hashtags hurt my reach?
It can. Irrelevant tags show your post to people who scroll past, and that poor engagement rate suppresses future reach. Some hashtags are also quietly restricted, which can limit the whole post.
Should I put hashtags in the caption or the first comment?
On Instagram both work identically for reach. Putting them in the first comment keeps the caption visually cleaner, which is the only real difference. Choose whichever you prefer and stay consistent.
Is it bad to reuse the same hashtags on every post?
Reusing a core set is fine and helps build a consistent topic signal. Posting the identical block on every single post has been flagged as spammy behaviour in the past, so vary a few tags each time.
Does this tool need an AI key?
Yes. Generating hashtags requires the AI, so this tool needs a key configured on the server. Our other social tools — the character counters, formatters and the emoji picker — all work fully without one.
Related tools
AI Instagram Caption Helper
Write the caption your hashtags sit under, in short, medium and long versions.
Social Media Character Counter
Check your caption plus hashtags against every platform's limit at once.
Twitter / X Character Counter
See exactly how much room hashtags leave you inside the 280-character limit.
Emoji Picker
Find the right emoji to break up a caption before the hashtag block.