Hashtag Generator
Build a set of hashtags from your topic, with a seed so the set is reproducible.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
This seeded generator builds topic-specific tag ideas and repeats the same set for the same inputs. It does not use live search, popularity, or engagement data; review relevance and current platform rules before posting.
Worked example
calculated with the default values below
Your topic sourdough baking · How many hashtags 15 · Niche focus Instagram · Seed 2,026 Hashtags #sourdoughbakingguide #sourdoughbakingideas #bakingtips #instadailysourdoughbaking #sourdoughbaking #sourdoughtips #reelssourdoughbaking #sourdoughbakingdaily #baking #sourdoughbakingtips #igsourdoughbaking #sourdough #sourdoughbakingcommunity #sourdoughbakinginspiration · Hashtags generated 14 · Broad tags #sourdoughbaking #sourdoughbakingtips #sourdoughbakingguide #sourdoughbakingideas #sourdoughbakingcommunity #sourdoughbakingdaily #sourdoughbakinginspiration · Niche tags #sourdough #sourdoughtips #baking #bakingtips #reelssourdoughbaking #instadailysourdoughbaking #igsourdoughbaking · Total characters 271
Disclaimer
These calculators give general estimates for information and entertainment. Platform algorithms, metrics and definitions change without notice, and none of these results are official figures from the platforms named.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
H = seededShuffle(topicPool)[1…min(k, |P|)]
- P
- Candidate tag pool built from topic and platform
- seed
- Random seed
- k
- Number of hashtags requested
- H
- Selected hashtags
A seeded shuffle selects up to k tags from a topic-specific candidate pool. Unicode letters and numbers are retained. No live trend or engagement data is used.
Frequently asked questions
Are these live or popular hashtags?
No. The tool deterministically shuffles a small topic-specific candidate pool from your input. It does not measure search volume, trends, reach, or engagement. Unicode letters and numbers are supported; review relevance and current platform rules before posting.