Hashtag Generator is a free online tool that instantly generates relevant, trending hashtags for your social media posts. Enter a keyword, topic, or paste your caption — and get hundreds of targeted hashtags for Instagram, TikTok, Twitter/X, YouTube, Facebook and LinkedIn. All processed instantly in your browser, no data sent to any server.

How to use: Enter your topic or paste your post caption, select your platform and niche, then click Generate Hashtags. Copy individual tags or all at once, filter by popularity, and mix sets for maximum reach.