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Twitter/X Hashtag Generator
Generate X (Twitter) hashtags with AI
Generating needs a PostNext account. New accounts start with a 7-day free trial that asks for a card; cancel before it ends to keep the free plan, which includes AI credits every month.
Check your hashtags for free
Paste a caption or a list of hashtags. The check runs in your browser: no account and no AI.
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Instant Results
Multiple Styles
Step 1: Enter Your Topic
Step 2: Select Options
Step 3: Generate & Tweet
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Twitter/X Hashtag Generator FAQ
How many hashtags should I use on Twitter?
We recommend 1 to 3 hashtags per post on X. X sets no hashtag limit beyond the character count, but a long string of hashtags can look spammy and tends to lower interaction.
Do Twitter hashtags increase visibility?
Yes, when they match the post. A hashtag links your post to a search people can follow, so it can reach readers beyond your followers. One or two are enough: X readers skip posts crowded with hashtags.
Should I use trending hashtags?
If the post really belongs in that conversation, a trending tag puts it where people are reading. Hijacking an unrelated trend backfires, and X users call it out. The AI has no live trend data, so check X's Explore tab first.
How do I see which hashtags work?
Not per hashtag. X Analytics shows impressions and engagement for each post, so compare similar posts with different tags to see which ones help.
What makes a good Twitter hashtag?
Short, memorable, relevant, and easy to spell hashtags perform best.
Should I create branded hashtags?
Branded hashtags help track campaigns and build community around your brand.
Do hashtags work in replies?
Yes hashtags work in replies, but they have more discoverability impact in original tweets. Reply hashtags primarily benefit the conversation thread rather than broad discovery. For maximum reach, prioritize hashtags in original posts, quotes, and retweets with comments.
Is there a limit to hashtags I can generate?
Generating needs a PostNext account, which includes monthly AI credits. In the app you can also save sets as hashtag groups and add them from the composer. The hashtag checker on this page is free and works in your browser.