Free Tool

Hashtag Generator for Every Platform

Type your topic and instantly get optimized hashtags for TikTok, Instagram, YouTube, and Twitter/X. No signup required.

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Want AI to do this automatically for every upload?

Zync generates optimized hashtags, captions, and titles for every video you upload — and posts to 16+ platforms at once.

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How It Works

1

Enter your topic

Type any video topic, niche, or keyword into the search bar above.

2

Get platform hashtags

Instantly receive optimized hashtags tailored for TikTok, Instagram, YouTube, and X.

3

Copy and post

Copy all hashtags with one click and paste them into your video description.

Frequently Asked Questions

Is this hashtag generator free?

Yes, completely free with no signup required. Use it as many times as you want.

Why are the hashtags different per platform?

Each platform has its own discovery algorithm. TikTok favors FYP tags, Instagram uses community hashtags, YouTube relies on search terms, and X/Twitter uses trending topics.

How many hashtags should I use?

TikTok: 4-8 hashtags. Instagram: 10-15. YouTube: 5-10 tags. Twitter/X: 2-4. Our tool gives you the right amount per platform.

What is Zync?

Zync is an AI-powered platform that lets you upload a video once and publish it to 16+ social media platforms simultaneously, with auto-generated captions, hashtags, and scheduling.