Software · Internet & communication

Stream Overlay

Browser overlays on your screen.

Completely free
Linux
Open source

At a glance

Stream Overlay is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (Apache-2.0) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
Commercial use allowed

About

Borderless, transparent, click-through, always-on-top browser windows for streaming. For example, you can show your Twitch chat and alerts on your display, over your game. I made this app because I would often not notice my chat messages on my other monitor, and I'd prefer to have them come up on the display I'm looking at, rather than only in an OBS overlay. It's also great for single monitor streamers.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 8 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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