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.
Tip: Instagram allows up to 30 hashtags per post — mix a few popular ones with more specific, niche tags for the best reach.
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.
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.
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.
