# Custom Header Column

> Add custom columns in Proxyman from request or response headers, query parameters, and JSON body values to tell similar requests apart at a glance.

## 1. What's it?

The Custom Header Column feature lets you add your own columns to the main table view. It's similar to the [custom columns in Chrome DevTools](https://developer.chrome.com/docs/devtools/network/reference#custom-columns).

## 2. Benefit

* Show a request or response header as a column in the table.
* **Tell requests apart when they have the same URL but different headers.**
* Resize, sort, and reorder the columns.
* Proxyman remembers your columns and restores them in your next session.

## 3. Custom Column

You can create a custom column from:

* ✅ Request or response header, e.g. Content-Type, X-Key, ...
* ✅ Query parameter of the request, e.g. name, id, ...
* ✅ JSON body with jq or JSON Path, e.g. $.data.user.name (Proxyman 6.17.0 or later)

![Custom Columns window with request and response lists, and Header, Query and JSON Body columns turned on](https://proxyman.com/docs/assets/Screenshot%202026-08-25%20at%2013.13.07.jpg)

## 4. How to use it?

1. Open **Tools** → **Customize Columns…**
2. Click the **+** button under the Request or Response list.
3. Choose Header, Query, or JSON Body. Enter the name or expression, then click **Add**.

![Proxyman sheet that adds a custom column from a JSON body value with the JSON Path option selected](https://proxyman.com/docs/assets/Screenshot%202026-08-25%20at%2013.13.17.png)

To learn how to query JSON data with JSON Path or jq, read:

* [**JSON Path**](https://proxyman.com/docs/basic-features/jsonpaths)
* [**jq**](https://proxyman.com/docs/basic-features/jq)

## 5. Built-in GraphQL Query Column

Proxyman can show the query name of each GraphQL request in the **Query Name** column. Right-click the table header and select **Query Name (GraphQL)** to show it.

![Proxyman table with a Query Name column showing GetUser, ListPosts and CreatePost for GraphQL requests](https://proxyman.com/docs/assets/proxyman-graphql-query-name-column.jpg)

_GraphQL Query Name column_

## Learn more

* [Manage header columns on the main table view](https://proxyman.com/posts/2022-06-18-Tips-Manage-custom-columns-on-the-main-table-view)