> For the complete documentation index, see [llms.txt](https://ovion-studio.gitbook.io/keryo-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ovion-studio.gitbook.io/keryo-docs/content-tools/free-tools.md).

# Free tools

Free public tools you can use without logging in.

Keryo offers a set of **free public tools** — no account, no login required. They live on their own pages (available in English and French) and help with the little tasks every social media manager runs into.

> *\[Screenshot: the free tools landing page listing the available tools]*

## The tools

| Tool                            | What it does                                                             |
| ------------------------------- | ------------------------------------------------------------------------ |
| **Character counter**           | Count characters as you write, so you stay within each network's limits. |
| **Engagement-rate calculator**  | Work out an engagement rate from your reach and interactions.            |
| **Instagram carousel splitter** | Split a wide image into clean Instagram carousel slides.                 |
| **Instagram grid maker**        | Plan how posts will line up on your Instagram profile grid.              |
| **LinkedIn text formatter**     | Add bold, italic and other styling to make LinkedIn posts stand out.     |
| **YouTube title checker**       | Check whether a YouTube title reads well and isn't cut off.              |

{% hint style="info" %}
These tools are free and open to everyone — they don't need an active subscription or trial, unlike the main Keryo app.
{% endhint %}

## When to use them

Reach for the free tools during everyday content work:

* Writing a post? Keep the [character counter](#the-tools) open.
* Reporting results? The engagement-rate calculator does the math for you.
* Prepping Instagram? The carousel splitter and grid maker save you a trip to a design app.

Inside the app, you'll find the same care for content in [post templates](/keryo-docs/content-tools/templates.md) and the [AI assistant](/keryo-docs/creating-posts/ai-assistant.md).