Tip: Instagram allows up to 30 hashtags per post — mix a few popular ones with more specific, niche tags for the best reach.
Free Hashtag Generator
Enter a topic or a few keywords and get a set of relevant hashtags you can copy straight into your Instagram, TikTok, LinkedIn or X post — free and instant, right in your browser.
What is the hashtag generator?
A hashtag generator is a free tool that turns a topic or a few keywords into a set of relevant, ready-to-use hashtags for social media. You describe your post or list some keywords, and it creates single-word tags, camel-case phrase tags and popular combinations you can copy straight into Instagram, TikTok, LinkedIn or X. Slashit's hashtag generator runs entirely in your browser, so nothing you type is uploaded, and it works instantly as you go. Good hashtags help the right people discover your content, and mixing broad tags with more specific, niche ones usually gets the best reach.
How our free hashtag generator works
Enter your topic
Describe your post or list a few keywords — one topic per line works well for a varied set.
Get instant hashtags
The tool builds single-word, phrase and combined hashtags from your words as you type.
Copy them into your post
Copy all the hashtags with one click and paste them into your caption or first comment.
What can you use the hashtag generator for?
Building a caption for a new post
Generating tags from your caption text gives you a relevant starting set in seconds instead of typing them from memory each time.
Finding tags beyond the obvious ones
Everyone reaches for the same handful of huge tags. Suggestions surface related terms you'd otherwise overlook.
Keeping a consistent set for a campaign
Running the same description through each time produces a consistent tag set across a series of posts.
Adapting tags per platform
Instagram rewards more tags than LinkedIn or X. Generate a wide set, then trim to suit where you're posting.
Who uses our free hashtag generator?
Content creators & influencers
Find relevant tags fast so more of the right people discover each post.
Social media managers
Build consistent hashtag sets for brands across Instagram, TikTok and LinkedIn.
Small businesses
Reach local and niche audiences without paying for a hashtag research tool.
Why use the hashtag generator?
Instant & free
No sign-up — hashtags appear the moment you type your topic.
Copy in one click
Grab the whole set and paste it straight into your post.
Private
Everything runs in your browser; nothing you enter is uploaded.
How many hashtags should you use?
Platform norms differ considerably, and using too many looks like spam on some networks.
| Platform | Practical number | Hard limit |
|---|---|---|
| 3–8 relevant tags | 30 | |
| TikTok | 3–5 | No fixed limit, caption capped |
| X / Twitter | 1–2 | Limited by 280 characters |
| 3–5 | No fixed limit | |
| 1–3 | No fixed limit | |
| YouTube | 3–5 in the description | 500 characters of tags |
Tips for getting the best results
Mix broad and niche tags
Huge tags bury your post within seconds. Smaller, specific tags have less competition and reach people who actually care about the topic.
Relevance beats volume
Tags unrelated to your content attract the wrong audience and can suppress reach. Only keep the ones that genuinely describe the post.
Don't reuse an identical block every time
Pasting the same tag list on every post looks automated. Vary the set to match each piece of content.
Check a tag before committing to it
Some tags are dominated by unrelated or unwanted content. Search it on the platform before adding it to a brand post.
Frequently asked questions
How many hashtags should I use?
Instagram allows up to 30 per post. A mix of a few popular tags and several specific, niche ones usually performs best. This tool gives you up to 30 to choose from.
Which platforms is it for?
The hashtags work anywhere hashtags do — Instagram, TikTok, LinkedIn, X, Threads and more.
Is it free?
Yes — it's free, needs no sign-up, and runs entirely in your browser.
How many hashtags should I use on Instagram?
Instagram allows up to 30, but a focused set of three to eight genuinely relevant tags usually performs better than filling the limit.
Do hashtags still work?
They still help categorise content and surface it in topic feeds and searches, though on most platforms the algorithm now weighs the content itself more heavily. Treat them as a helpful signal, not the main driver.
Should hashtags go in the caption or the first comment?
Either works on Instagram and reach is effectively the same. Many people put them in the first comment purely to keep the caption clean.
Can I use the same hashtags on every post?
It's better not to. An identical block on every post looks automated and doesn't match the specific content, which limits how well each post is categorised.
