AI Hashtag Generator
Paste a topic, keyword, caption, or URL — get a balanced mix of high-volume, mid-volume, and niche hashtags tailored to your platform and account size. Every set is automatically filtered against a current banned/restricted list, deduplicated, and ranked by competition. Nothing about your input ever leaves your device. Built into bulkcalculator.com's AI Tools suite alongside the AI Token Counter, LLM Cost Calculator, and Prompt Builder.
Hashtag generator inputs
Platform
Loading hashtag database...
Account size
Content type
Advanced
Save / load presets
Filtered tags
Banned-tag lists are best-effort and unofficial. Platforms do not publish these. Last verified 27-04-2026 against several public sources. Verify before relying for commercial purposes.
Why this is rule-based, not AI-generated
This tool is honest: it is a smart keyword expander with curated niche data, platform rules, banned-tag filtering, stem matching, and rotation. Many so-called AI hashtag tools do the same thing behind the scenes. Here, the deterministic approach is faster, private, repeatable, and easier to audit.
Frequently asked questions
How does this hashtag generator work without AI?
This hashtag generator is a deterministic keyword expander, not an LLM. It tokenizes your topic, matches curated niches, stems related words, then builds a balanced mix of broad, mid-volume, and niche hashtags for the platform you choose.
Why are some of my chosen hashtags removed from the result?
The tool removes duplicate tags, tags you placed in the avoid list, and tags in the banned list for the selected platform. If Strict mode is enabled, it also removes restricted tags that are not always banned but can be risky for reach.
How many hashtags should I use on Instagram in 2026?
Instagram allows up to 30 hashtags, but this tool recommends 15 to 20 for most posts. That range gives enough topical coverage without making the caption look overloaded or repetitive.
Why are TikTok hashtags different from Instagram hashtags?
TikTok discovery relies heavily on watch behavior and content signals, so hashtags mainly clarify topic and audience. Instagram hashtag sets can be broader and more layered because tags still act as searchable discovery labels.
What is a banned hashtag and how do you know which ones are banned?
A banned hashtag is a tag that public creator communities repeatedly report as blocked, hidden, or risky on a platform. Platforms do not publish official complete lists, so the file is best-effort and should be verified before commercial campaigns.
Why is small account mode suggesting different tags than large account mode?
Small accounts are more likely to be buried under extremely competitive broad tags, so the generator uses more niche tags. Large accounts can benefit from higher-volume tags because they already have enough engagement velocity to compete.
Are these hashtags safe for branded posts?
The generator removes known banned tags and can remove restricted tags in Strict mode, but brand safety still needs human review. Always check sensitive campaigns, regulated industries, and regional meanings before publishing.
Does this tool send my topic to any server?
No. Your topic, caption, presets, avoid list, and generated hashtags stay in your browser. The tool loads local JSON data files and does not call an LLM, analytics service, or Bulkcalculator backend.