Fireflies is a gentle effect of glowing particles that slowly drift across the screen and pulse. It looks great on break screens and chill streams.
What you can customize
- Glow color and strength
- Amount and size
- Area: full screen or sides
How to add it to OBS step by step
- Select "Fireflies" from the list and adjust the look in the preview: colors, text, speed and other options.
- Click "Copy" next to the Browser Source link.
- In OBS Studio, add a source: Sources → + → Browser (Browser Source) and paste the link into the URL field.
- Set the source size to 1920×1080 px. The background is transparent, no custom CSS needed.
- Drag the source above the other layers so it's visible on stream.
Questions and answers
How do I change the firefly color?
Choose a color in the settings. Warm yellow looks natural, while green or purple suits Halloween.
Are the overlays free?
Yes. All overlays on overlays.vxh.pl are free, with no sign-up, no watermark and no limits.
Does it work in Streamlabs, Meld and TikTok Live Studio?
Yes, in any app that has a browser source (Browser Source): OBS Studio, Streamlabs Desktop, Meld Studio, XSplit and TikTok Live Studio.
Where are my settings saved?
All settings are stored in the OBS link itself. You can also save them under a name in the "Saved" tab, but that copy lives only in this browser's storage (localStorage). It won't be there on another computer, which is why the VXH1- share code exists for moving settings around.
Does the overlay slow down my computer?
Effects are drawn on a single canvas or in CSS and run smoothly in OBS. If your computer is on the slower side, lower the "Amount" slider or the source size.