Overlays, alerts and widgets
Scenes and alerts that react to chat.
Build layered overlays for OBS, pick animated alerts and goal bars from a gallery of 161 widgets, and let your macros change what they show while you're live.
Free Supporter Two overlays and five custom widgets free. Supporters get unlimited.
The editor
Lay out a scene, layer by layer.
An overlay is one see-through scene for OBS: your webcam frame, the chat box, a goal bar, a Starting soon screen. Drop things on, drag them into place, and it shows in OBS as you work.
Just chatting
Landscape 16:9 · 1920 × 1080
Layers
- Follower goal
- Chat box
- Alert: follow
- Webcam frame
- Logo
Any size you stream at
Landscape 16:9 or portrait 9:16, from 720p up to 4K. Match OBS and everything stays sharp.
One theme, every colour
Eight colours and two fonts per overlay. Change Primary once and everything following it changes with it.
- Primary
- Secondary
- Accent
- Text
- Muted
- Panel
- Border
- Highlight
Text with polish
Gradient fills, outlines, shadows, glow, 3D depth and marker-pen highlights on any text.
Alerts
Thank every viewer, right on stream.
A follow, sub, gift, cheer, raid or channel point reward pops up with a picture, the viewer's name and a sound. The Add alert wizard builds the trigger and macro behind it for you.
Set one up in three steps
Event (done)
Pick when: a follow, sub, gift, cheer, raid or reward.Look (done)
Choose a picture, write the headline and add a sound.Behavior
Set how long it shows and how it enters.
Headlines fill in the details for you, like the viewer's name and how many bits.
They never talk over each other
Queue- Showing lunarfoxraid, 42 viewers
- Waiting pixelpandafollow
- Waiting nova_kfollow
- Waiting moonbeamcheer, 500 bits
Each overlay has its own line, with room for 50 waiting.
The widget gallery
Find one you love, install it in a click.
Every widget is a ready-made piece: a goal bar, an animated alert, a chat style, a Starting soon screen. Install one, set your colours and fonts, and make it look like your channel.
Widgets
Library and Gallery.
- Achievement Unlocked A console-style toast with a spinning trophy. Installed
- Confetti Cannon Two cannons and a ribbon banner drop in. Install
- Liquid Bottle A bottle fills with rippling liquid toward your goal. Install
- Boss Health Bar Every new follow lands a hit on the boss. Update
- RPG Dialogue Chat types out in a JRPG dialogue box. Install
- Starting Soon Drifting light, a countdown ring and your newest supporters. Install
- Rocket Raid A countdown and a launch with the raider's name. Install
- Neon Webcam Frame A neon-tube frame that flickers on. Install
- Alerts 17 Animated, with every real value: name, amount, months and message.
- Alert themes 8 sets Synthwave, 8-bit, cozy pastel, esports and more, in one matching look.
- Goals 11 Bottles, boss bars, thermometers and rockets driven by a counter.
- Chat styles Bubbles to terminals Speech bubbles, RPG dialogue, sticky notes and neon.
- Scenes Starting soon and more Starting soon, Be right back, credits and Please stand by.
- Backgrounds and frames Webcam frames too Flowing aurora, starfields and animated lower thirds.
Same gallery, in your browser. Click Open in CroStream and it lands in your library.
Into OBS
One click makes the OBS source.
Every overlay has its own address that OBS shows as a browser source. With CroStream connected to OBS, Add to OBS creates the source in the scene you pick, at the right size, with its sound going through the OBS mixer.
Open the overlay's menu (done)
On the Overlays page, click the three dots on its card.Choose Add to OBS (done)
Pick the scene to add it to and check the source name.Add source
The size is filled in from the overlay. Leave Control audio via OBS on.
Edit and it updates. Changes you make in the editor show in OBS straight away, and your macros can change what an overlay shows mid-stream.
Add to OBS
Sources
- Game capture
- Webcam
- Just chatting New
Make it yours
Share a widget, or write your own.
A widget someone made for you is one file to import. And if you like to tinker, any element takes your own CSS, and you can build whole widgets from scratch.
Pass a widget to a friend
Export any custom widget as a single file. Your friend clicks Import, picks the file, and it's in their library.
For tinkerers
OptionalYou never need to write code. But if you do, it's all there.
- Custom CSSRestyle one element or the whole overlay, with named parts to target.
- Your own widgetsBuild new elements in a checking editor, then export or share them.
How many can I have?
- Built-in widgets
- Unlimited Free
- Overlays
- 2 free, unlimited with Supporter
- Custom and gallery widgets
- 5 free, unlimited with Supporter
If a sub lapses, whatever's over the limit keeps showing on stream. Nothing is deleted.
Try it
Build your first alert in fifteen minutes.
A step-by-step tutorial takes you from a blank overlay to a follow alert with a picture, a headline and a sound.
- Tutorial: Add an alerts overlay to OBS Create an overlay, add it to OBS as a browser source and set up a follow alert.
- Guide: Use an alert, start to finish Install an animated alert from the gallery, add its sound, preview and test it.
- Guide: The overlay editor Everything on the canvas, in the inspector and in the layers list.
Keep exploring
More of what CroStream does.
- Triggers and macros When something happens on your channel, run the steps you chose: chat commands, rewards, raids, follows and more.
- OBS and Twitch actions Nearly a hundred things a macro can do: switch scenes, save the replay, clip, poll, shout out, moderate.
- Building blocks Variables, counters, timers, lists, goals, cooldowns and schedules that macros read and change.
- Viewers and points A record for every viewer, a points balance your macros control, and leaderboards.
- History and dashboard Your stream at a glance while live, and every follow, sub, cheer and raid remembered after.
- Media library The sounds, pictures, videos and fonts you stream with, in one place for every overlay and macro.
- Hotkeys and pop-outs Run macros from any app with a key combination, and keep controls and chat in their own windows.
- Run it your way On your streaming PC, from a browser on your laptop, on a PC with no screen, or across two PCs.
- Moments Your best bits, caught automatically and marked on Twitch while you play.
- Integrations Twitch and OBS, plus VTube Studio, Discord and Steam for Supporters.