Finding the right hashtags is quick to get wrong and slow to do by hand. Enter your topic and this free generator builds a set for Instagram (up to 5, the current limit), TikTok and LinkedIn in one go, with no account needed.
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- Enter your topic: type in the subject of your post (e.g. “digital marketing”, “fitness coach”, “vegan recipes”).
- Add a sub-niche (optional): narrow things down with a specific keyword or location (e.g. “email marketing”, “HIIT”, “Sydney”).
- Click Generate Hashtags: the tool instantly produces a full hashtag set for each platform.
- Switch platform tabs: view Instagram, TikTok, and LinkedIn hashtags separately, each optimised for that platform’s algorithm and conventions.
- 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.
- Regenerate for variety: click Regenerate on any platform tab to get a fresh variation.
Why hashtags still matter
Hashtags still help people find posts on Instagram, TikTok and LinkedIn, but each platform treats them differently.
- Instagram: posts and reels are now limited to 5 hashtags. Instagram says fewer, more targeted hashtags work better than many generic ones, so pick the most relevant mix of broad and niche tags.
- TikTok: hashtags help TikTok understand what a video is about. A few specific, relevant tags do more than generic ones like #fyp.
- LinkedIn: 3 to 5 relevant hashtags is plenty. Use them to label the topic; the post itself has to earn the reach.
This tool builds a separate set for each platform that follows these rules, so you don’t have to research them by hand.
Frequently asked questions
How many hashtags should I use on Instagram?
Five at most. Instagram limited posts and reels to 5 hashtags in December 2025 and says fewer, more targeted hashtags perform better. This tool gives you a set of 5 that mixes broad and niche tags.
Do hashtags still work on TikTok?
Yes. Hashtags help TikTok’s recommendation system understand what your video is about. Use 3 to 5 specific, relevant tags. Generic tags like #fyp add little, and a caption stuffed with dozens of tags looks spammy.
What hashtags should I use on LinkedIn?
Keep it to 3 to 5. Use CamelCase (for example #DigitalMarketing, not #digitalmarketing) so tags are easy to read, and pick tags that describe the post’s topic rather than chasing the biggest ones.
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.
Sources
- Social Media Today, “Instagram Implements New Limits on Hashtag Use“, December 2025.
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