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The CLI provides a share command to share your most recent evaluation results from promptfoo eval.

The command creates a URL which can be used to view the results. The URL is valid for 2 weeks. This is useful, for example, if you're working on a team that is tuning a prompt together.

Here's how to use it:

promptfoo share


When you run promptfoo share, it will ask for a confirmation to create a URL.

If you want to skip this confirmation, you can use the -y or --yes option like this:

promptfoo share -y


Here's an example of how the share command works:

$ promptfoo share
Are you sure you want to create a shareable URL? [y/N] y
View results:


The "share" button in the web UI can be explicitly disabled in promptfooconfig.yaml:

sharing: false


Please be aware that the share command creates a publicly accessible URL, which means anyone who knows the URL can view your results. If you don't want anyone to see your results, you should keep your URL secret.

After 2 weeks, all data associated with the URL is permanently deleted.


To set up self-hosting for the sharing feature, you need to host the Next.js application and configure the key-value (KV) store that will manage the shared evaluation results.

Hosting the web app

You can use the provided Dockerfile to containerize and host the Next.js app. Here's an example Docker command to build and run the container:

docker build --build-arg NEXT_PUBLIC_PROMPTFOO_REMOTE_API_BASE_URL=http://localhost:3000/api -t promptfoo-ui .
docker run -p 3000:3000 promptfoo-ui

The NEXT_PUBLIC_PROMPTFOO_REMOTE_API_BASE_URL tells the web app where to send the API request when the user clicks the 'Share' button. This should be configured to match the URL of your self-hosted instance.

Configuring the KV Store

By default, the application uses an in-memory store. However, you can configure it to use Redis or the filesystem by setting the appropriate environment variables. Below is a table of environment variables you can set to configure the KV store:

Environment VariableDescriptionDefault Value
PROMPTFOO_SHARE_STORE_TYPEThe type of store to use (memory, redis, or filesystem).memory
PROMPTFOO_SHARE_TTLThe time-to-live (TTL) for shared URLs in seconds.1209600 (2 weeks)
PROMPTFOO_SHARE_REDIS_DBThe Redis database number.0
PROMPTFOO_SHARE_STORE_PATHThe filesystem path for storing shared results.share-store

Using promptfoo share with self-hosting

When self-hosting, you need to set the environment variables for the promptfoo share command to point to your hosted application. Here's an example:

PROMPTFOO_REMOTE_API_BASE_URL=http://localhost:3000/api PROMPTFOO_REMOTE_APP_BASE_URL=http://localhost:3000 promptfoo share -y

This will create a shareable URL using your self-hosted service.

The PROMPTFOO_REMOTE_API_BASE_URL environment variable specifies the base URL for the API endpoints of your self-hosted service. This is where the promptfoo share command sends data to create a shareable URL.

Similarly, the PROMPTFOO_REMOTE_APP_BASE_URL environment variable sets the base URL for the UI of your self-hosted service. This will be a visible part of the shareable URL.

These configuration options can also be set under the sharing property of your promptfoo config:

apiBaseUrl: http://localhost:3000/api
appBaseUrl: http://localhost:3000