Val Town is the easiest way to self-host a Slack app - everything is configured on the web with no local development required. It's free and easily shareable.

You can send one-way Slack messages as a Slack app in minutes on Val Town.

Remix this val to get started.

Create a Slack app:

1. Go to Slack API and create a new app From Scratch
2. Choose an App Name and select your workspace

Enable incoming webhooks:

1. Go to Features → Incoming Webhooks
2. Toggle Activate Incoming Webhooks

Create webhook:

1. Click Add New Webhook
2. Select your target channel

Add to Val Town:

1. Copy the Webhook URL from Slack
2. In your val's sidebar: Environment Variable → set slackWebhookURL

You will get a Slack message every time you click Run on the main.tsx file.

Take this a step further by responding to mentions, slash commands, buttons, and other user interactions with our full Slack bot guide!

You can find more Slack examples on our Templates page.