For streamers
Interactive Stream Overlays an overlay your viewers can play with
Most overlays are pictures that sit there. A Blerp overlay reacts: viewers throw things at it, make the pet talk, fill the goal bar and set off video memes, all in one browser source.
What goes in it
Alert box
Alerts for follows, subs and gifts, plus everything viewers play through Blerp.
Goal and timer
A goal bar or subathon timer that moves as your community supports you.
Pet
A character that reacts to viewer sounds and TTS.
Video memes
Transparent video memes viewers drop onto your stream.
Chat and emotes
Your chat and emote layers placed where you want them.
Images and text
Your own frames, logos and labels around the live layers.
Things viewers can set off
Throwables and animations are free in your Blerp extension: viewers throw tomatoes at your face cam or send a penguin out to wave hello. Sounds, TTS and video memes play from the same extension, channel point rewards and alerts.
Already have overlay art you love? Keep it. Add Blerp's layers on top so your static design comes to life.
Build an interactive overlay
- 1
Open Overlays
Sign in to Blerp and create an overlay.
- 2
Add layers
Drop in the alert box, goal, pet, chat or your own images and arrange them.
- 3
Add it to OBS
Paste the overlay's browser source link into OBS and size it to your canvas.
Questions
Is it free?
Yes. Free plans include two combined overlays with alerts for what viewers play, goals, pets and extension throwables. Blerp Unlimited raises that to ten overlays and adds alerts for follows, subs and other platform events.
Do I have to replace my current overlay?
No. Keep your graphics in OBS and add a Blerp overlay as one more browser source on top.
Does it work on Kick, YouTube and TikTok LIVE?
Yes. A browser source shows up on whatever platform you stream to, and viewers on any platform can use the Blerp browser extension.
Do I need to download anything?
No. Everything runs in a browser source; there's no plugin to install.
Updated October 29, 2026