---
title: "Hashtag Generator"
description: "Free hashtag generator. Enter a topic or caption and get a set of relevant, popular hashtags for your social posts. Powered by an LLM via Pixeltable."
keywords:
  - hashtag generator
  - instagram hashtag generator
  - social media hashtags
  - free hashtag tool
url: "https://pixeltable.com/tools/hashtag-generator"
---

# Hashtag Generator

Free hashtag generator. Enter a topic or caption and get a set of relevant, popular hashtags for your social posts. Powered by an LLM via Pixeltable.

Free online tool by Pixeltable. Run it at https://pixeltable.com/tools/hashtag-generator (interactive, no sign-up).

## Features

- 20 hashtags
- Topic-relevant
- One-click copy
- Free

## FAQ

### Which platforms is this for?

It works for Instagram, TikTok, LinkedIn, X, and other platforms.


## Fact sheet

Last updated 2026-09-23.

| Fact | Value |
| --- | --- |
| Modality | Text |
| Inputs | Text you paste |
| Outputs | Model text |
| Computed column | String computed column that reruns when the input changes |
| What updates | A new or changed row recomputes only that row. Unchanged rows stay cached. |
| Canonical doc | [Computed columns](https://docs.pixeltable.com/datastore/computed-columns) |

```python
import pixeltable as pxt

TableModel = pxt.model_base()

class Notes(TableModel, name='notes'):
    body: pxt.String

    chars = body.len()
```