Finding the right hashtags is one of the easiest wins in social media marketing — and one of the most time-consuming tasks to do manually.

This free hashtag generator takes your topic and instantly produces a platform-optimised set of hashtags for Instagram (up to 30), TikTok (discovery + niche), and LinkedIn (professional) — all in one place, no account required.

How to Use the Hashtag Generator

1. Enter your topic — type in the subject of your post (e.g. “digital marketing”, “fitness coach”, “vegan recipes”).
2. Add a sub-niche (optional) — narrow things down with a specific keyword or location (e.g. “email marketing”, “HIIT”, “Sydney”).
3. Click Generate Hashtags — the tool instantly produces a full hashtag set for each platform.
4. Switch platform tabs — view Instagram, TikTok, and LinkedIn hashtags separately, each optimised for that platform’s algorithm and conventions.
5. Copy what you need — click any individual hashtag chip to copy it, or use Copy All to grab the entire set ready to paste into your post.
6. Regenerate for variety — click Regenerate on any platform tab to get a fresh variation.

Why Hashtags Still Matter in 2025

Hashtags remain one of the primary discovery mechanisms on Instagram, TikTok, and LinkedIn — but the strategy for each platform is very different.
Getting this wrong means your content reaches far fewer people than it should.

• Instagram: The sweet spot is 10–30 hashtags spread across high-volume, niche, and micro categories. All-popular hashtags bury your post in seconds; all-micro hashtags limit your reach ceiling. A mix is key.
• TikTok: Discovery tags like #fyp and #foryoupage are still widely used, but combining them with 5–10 niche-specific tags gives the algorithm clear signals about your content category.
• LinkedIn: 3–10 professional, CamelCase hashtags are the norm. LinkedIn’s algorithm rewards relevance over volume — broad tags like #Marketing perform well, but industry-specific tags drive the right professional audience.

This tool generates platform-specific hashtag sets that follow these best practices automatically, saving you hours of manual research per week.

Frequently Asked Questions

How many hashtags should I use on Instagram?

Instagram’s own guidance suggests 3–5 hashtags, but many creators and marketers see strong results with 10–20 when the hashtags are highly relevant. This tool generates up to 30 (Instagram’s maximum) and colour-codes them by volume tier — high, niche, and micro — so you can pick the right mix for your content.

Do hashtags still work on TikTok?

Yes — hashtags on TikTok serve as content category signals for the recommendation algorithm, not just search filters. Using 5–10 relevant hashtags alongside a discovery tag like #fyp is the current best practice. Avoid stuffing 30 hashtags into a TikTok caption; quality beats quantity on that platform.

What hashtags should I use on LinkedIn?

LinkedIn recommends 3–5 hashtags per post, but 5–10 is widely accepted. Use professional CamelCase formatting (e.g. #DigitalMarketing, not #digitalmarketing) and mix broad industry tags with specific niche ones. LinkedIn users follow hashtags, so relevance directly affects who sees your post in their feed.

Is this hashtag generator free?

Completely free. No account, no sign-up, no usage limits. Everything runs in your browser — your topic input is never sent to any server.

How does the generator choose which hashtags to suggest?

The tool matches your topic against a curated database of hashtags grouped by niche and platform, then layers in hashtags derived directly from your input keywords. Instagram results are split into high-volume, niche, and micro tiers. TikTok results include discovery tags plus niche-specific ones. LinkedIn results use professional CamelCase convention.

Can I use the same hashtags every time?

Using the exact same hashtag set repeatedly on Instagram has been linked to reduced reach — Instagram’s algorithm may treat it as spam-like behaviour. Use the Regenerate button to get hashtag variations, and rotate your sets across posts.

What topics does the generator cover?

The tool covers a wide range of popular niches including digital marketing, SEO, content creation, social media, fitness, food, travel, fashion, technology, real estate, e-commerce, photography, branding, email marketing, and AI. For niche topics, it also generates hashtags directly from your keyword input.

Also useful for social media marketers:
Word & Character Counter (check caption length before posting),
Open Graph Preview Tool (see how your link looks when shared),
Email Subject Line Tester, and all free marketing tools.