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Streamlabs Alert Box

Every follow deserves a moment on screen.

The Streamlabs Alert Box shows a short celebration whenever someone follows, subscribes, tips or raids your channel. Learn how to build one that feels good instead of noisy.

luna_wave just followed! Welcome to the channel, make yourself comfortable.
Follow Subscription Donation Cheer Raid Host
Build my alert box See event types
Anatomy

What an alert is made of

01The message

A template such as “{name} just followed”. The curly part is replaced with the viewer’s name automatically. Keep it under eight words.

02The sound

A short cue that tells you something happened even when you are focused on the game. Set the volume below your game audio.

03The timing

How long it stays and how it enters and leaves. Four to six seconds works for most events.

Event types

Which events can trigger a Streamlabs alert?

Each event has its own text, sound and duration, so a big raid can feel bigger than a casual follow.

F

Follow alert

The lightest event. Keep it to three seconds and a soft sound.

S

Subscription alert

Worth a longer message that also mentions the tier or month streak.

D

Donation alert

Shows the amount and the supporter’s note. Add a minimum so tiny tips do not interrupt the game.

C

Cheer alert

Reacts to bits with a message scaled by amount, ideal for rewarding generosity.

R

Raid alert

Announces incoming viewers and their count. Give it your most energetic style.

H

Host alert

A quiet thank-you for channels that send their audience your way.

Build it

Add the Streamlabs Alert Box to your scene in four steps

  1. Open the widget

    Find Alert Box in your dashboard and copy its private URL.

  2. Add a browser source

    In your broadcasting software paste the URL and match the canvas size.

  3. Tune each event

    Edit text, volume and duration separately for follows, subs and tips.

  4. Send test alerts

    Use the test buttons to preview every event in position on your scene.

Settings reference

Alert box settings and sensible starting values

Alert duration5 seconds

Adjust when: viewers say alerts block the game too long.

Sound volume40%

Adjust when: you cannot hear the cue over your game audio.

Text delay0.5 seconds

Adjust when: you want the name to appear after the animation lands.

Minimum donation1 unit

Adjust when: spam tips start interrupting important moments.

Alert delay2 seconds

Adjust when: events arrive back to back and overlap.

Design rules

Alerts that help versus alerts that annoy

Do this

  • Place the alert where it does not hide the game’s main action.
  • Use a different sound for subscriptions than for follows.
  • Keep text large enough to read on a phone.
  • Preview with the volume your viewers will actually hear.

Avoid this

  • Playing a loud sound for every single follow.
  • Stacking five alerts without a delay between them.
  • Covering your webcam or chat with the pop-up.
  • Using long messages nobody can finish reading.
Questions

Streamlabs Alert Box FAQ

  1. Why is my Streamlabs Alert Box not showing?

    Re-copy the widget URL, confirm the browser source is visible and make sure the source size matches your canvas. Refreshing the source often fixes it.

  2. Why can I see alerts but not hear them?

    Check that the browser source audio is routed to your stream mix and that the widget volume is above zero.

  3. Can different events use different sounds?

    Yes. Every event type has its own sound, text and animation, so you can make subs feel special.

  4. Does the alert box need to be the top layer?

    Put it above your game and webcam in the source list so nothing hides it, but below any full-screen scene overlay.

  5. Will test alerts count as real events?

    No. Test alerts only preview the design and do not create real follows, subscriptions or tips.

Make every supporter feel seen

Create your alert box, send a test and watch the first celebration land on your scene.

Create alerts