How do I add AlertForge alerts to OBS?

Download the transparent WebM, add a Media Source in OBS, select the file, and position it in your scene. For automatic platform-event triggers, upload the same file to a connected alert widget such as StreamElements or Streamlabs.

What's the difference between an OBS Media Source and an alert widget?

A Media Source plays a local WebM in OBS. A connected alert widget can use that WebM as custom media and decide when to trigger it for platform events.

Do AlertForge alerts work with all streaming platforms?

The exported WebM is platform-neutral and can be used in OBS regardless of where you broadcast. Automatic event triggering depends on the platform connection provided by your alert widget.

Do I need special OBS plugins for AlertForge alerts?

No. AlertForge exports transparent WebM files that OBS handles natively. No plugins, no extra software, and no complicated setup required.

AlertForge

Create free style sheet

OBS Alert Maker

Stream alerts that drop into OBS as transparent media.

Create AI-animated alerts for OBS Studio. Transparent WebM exports work as OBS Media Sources or custom media in the connected alert widget you already use.

Start building alerts

View Setup Guide

No plugins required1920×1080OBS Media SourceTransparent WebMCustom-media export

Properties for 'Media Source'

Local file

new-subscriber.webm

Restart when active

Enabled

Alpha channel

WebM

OBS StudioTwitchYouTube LiveKickFacebook GamingStreamElementsStreamlabsMedia SourceWebM AlphaNo Plugins

Integration options

3 ways to use AlertForge alerts in OBS

OBS Media Source

Download a transparent WebM and add it to OBS as a local Media Source for direct playback and scene control.

Local WebM file
OBS playback controls
No chroma key

new-subscriber.webm · Media Source

Transparent WebM Upload

Download your alerts as WebM files with alpha channel and upload them to StreamElements, Streamlabs, or any widget that accepts custom media.

Custom-media workflow
Local file control
Alpha-channel output

alert-pack.webm · alpha channel

StreamElements Custom Media

Import your AlertForge WebMs directly into StreamElements as custom alert media. Works exactly like any other custom alert file.

Custom-media compatible
Map files to events
Widget handles triggers

StreamElements · custom-media

Quick start

OBS setup in 4 steps

Follow the source setup and test it in your scene.

Create your alert pack

Design your alerts in AlertForge — pick a style, add text, and generate with AI.

Download the WebM

Export the alert you want to use and save the transparent WebM locally.

Add a Media Source in OBS

In your OBS scene, add a Media Source and choose the downloaded WebM file.

Test and position

Preview the source, configure playback, and position it within the scene as needed.

Works everywhere

Platform compatibility

OBS StudioTwitchYouTube LiveKickFacebook GamingStreamElementsStreamlabsSLOBS

The comparison

AlertForge vs. StreamElements built-ins vs. DIY After Effects

Tool	Setup time	Customization	Output formats
AlertForge	Guided export	Prompt + style sheet	WebM + PNG
StreamElements built-ins	Moderate	Template only	Hosted only
DIY After Effects	Hours	Unlimited (expert)	Manual export

Questions

Frequently asked questions

New · Stream Overlay Packs

Want a full OBS overlay pack to match your alerts?

Start with a creative brief, review the free style sheet, then use the approved direction for Starting Soon, BRB, Just Chatting and Ending scenes, 20 Twitch profile panels, lower-third labels, and a transparent cam frame. Review each generated asset before export.

Create free style sheet

Ready to set up

Build alerts for your OBS workflow

Upload or generate a character, choose the alert types you need, then review the generated WebM files before adding them to OBS.

Start building alerts

View Pricing