AI Hashtag Generator

An AI hashtag generator suggests hashtags for a social media post from a description of it. You write what the post is about, choose the platform and how many tags you want, and a language model returns a list of hashtags separated by spaces, each starting with #, ready to paste. You can ask for 10, 15, 20 or 30.

The model is told to mix three sizes of tag: broad popular ones, mid-size ones and specific niche ones, so the list is not all giant tags where a post disappears. It works for five platforms: Instagram, TikTok, X (Twitter), LinkedIn and YouTube. It starts from nothing. If you already have a set of tags and want to know which to keep or drop, the hashtag optimizer reviews an existing list instead, and the TikTok hashtag generator is tuned for TikTok alone.

The model runs on the Toolz server. Your description is sent over HTTPS, the server builds the prompt and runs Gemma 3 1B, a small open model from Google, with Ollama, and the tags stream back within a few seconds. Nothing is downloaded, so it works in any modern browser, phones included. Your description is used to write the reply and then discarded: it is not stored or logged, not used to train any model, and not sent to any third-party AI company.

The main limit is data. The model has no web access and cannot see post counts, so it cannot tell you how big a tag is, whether it is busy this week, or whether a platform has restricted it. It picks tags from the meaning of your words. Search the ones you plan to use in the app before posting, and drop any that do not fit. A small model can also miscount, so the list may hold a few more or fewer tags than you asked for.

It is free with no signup, within about 20 runs per 10 minutes. The alternatives are browsing tags by hand in each app, copying what similar accounts use, or a paid tool with live data. This one gives you a fast starting list and keeps nothing.