StreamOverlay vs Canva — built for OBS vs generic design.

What Canva does well

Canva's template library is huge, the editor is polished, and the brand-kit feature is great for streamers who design their own panels, schedule graphics, and offline screens alongside their overlay. For static graphics — webcam frames, scene panels, "starting soon" screens, social banners — Canva is a perfectly fine tool. Transparent PNG export with Canva Pro covers the static-image use case.

Canva also lets you collaborate with team members, save brand colours and fonts, and remix designs at scale. If you produce a lot of graphic content across platforms — not just overlays — the all-in-one design suite is genuinely useful.

The MP4-with-no-alpha problem

The moment you want an animated overlay with a transparent background, Canva runs into a wall: MP4 (the only video format Canva exports) does not carry an alpha channel. The H.264 codec used in MP4 doesn't have a standard alpha plane the way VP9 does in WebM or ProRes 4444 does in MOV. There is no Canva setting that fixes this; it's a codec limitation.

The usual workarounds are:

1. Export with a solid coloured background, then chroma-key it in OBS. Quality loss at the edges; messy with anti-aliased shapes.
2. Run the Canva MP4 through a converter that adds alpha. The converter has to guess the alpha from a key colour; same edge artefacts.
3. Export as an animated GIF. GIF has 1-bit transparency (each pixel is either fully transparent or fully opaque, no smooth edges), and the file is huge for any reasonable quality.

None of these are good. StreamOverlay sidesteps the problem by exporting in formats that carry alpha natively — WebM with VP9 alpha for live streaming, MOV with ProRes 4444 for editing.

Loop quality and animation control

Canva's animation system is designed for social-media motion graphics — slide-in, fade-up, bounce — applied to elements over a short duration. There's no concept of an infinite seamless loop. If you set a Canva animated design to loop, the seam is determined by whether the animation happens to end on the same state it started. Often it doesn't, and you see a visible reset.

StreamOverlay treats the loop as a first-class constraint. The animation math is set up so the final frame returns to the initial state at the pixel level — same phase, same opacity, same motion blur — before the file is ever exported. The seam is gone, not patched.

Who should pick which

Pick Canva if you're producing a wide range of design assets (panels, banners, social graphics, schedule cards) and want one tool for everything. Use it for the static parts of your stream brand.

Pick StreamOverlay specifically for the animated, transparent, looping overlay layer — the part Canva can't export cleanly. Many streamers use both: Canva for static graphics, StreamOverlay for the moving overlay on top.