Roblox Thumbnail Maker

1280 x 720 pixels, 16:9, under 2MB, in JPG, PNG, GIF or WEBP. That is the same for every niche. Design at that size from the first click rather than resizing at the end, because resizing a finished design moves text you placed carefully.

An avatar usually outperforms a real face here. The audience recognises avatars instantly and identifies with them. Emotion still matters, so use a pose or expression that communicates excitement or shock rather than a neutral stance.

Red, yellow, blue and green at high saturation. Sophisticated colour grading is a full size aesthetic that turns grey at 168 pixels, and this audience in particular responds to bold obvious colour.

Roblox permits creator content built from your own gameplay under its terms, but the platform hosts user-made experiences whose assets belong to their creators. Build from your own captures, and avoid lifting another developer's promotional art.

If your content is directed at children, yes, and that changes things. YouTube disables personalised ads, comments, notifications and end screens on those videos. It also means the thumbnail carries more weight, because packaging is doing almost all the work of earning the click.

Three to five at most. The thumbnail is seen at around 168 pixels wide on a phone, and longer text at that size becomes a grey smudge. If the words repeat what the image already shows, delete them and let the picture work.

The AI generators sit on the Pro plan, which includes 1,000 credits a month, and Magic Edit and erase draw on the same credits. The free plan is permanent rather than a trial and never asks for a card, and it covers outlier search and three tracked channels, so you can see what already worked in Roblox before deciding whether to pay for the generator.

Feed in a reference image or a face and the generator holds your likeness and style across generations. Consistency matters most where the audience is subscribing to you rather than to the topic, which is true of most Roblox channels.