Telegram keeps its image system simple: there is one square photo for your profile, channel, or group, and Telegram masks it into a circle everywhere it appears. This tool gives you the exact upload resolution and the circular safe area so your avatar stays sharp and uncropped from the tiny chat-list dot to the full-screen view.
How it works
Telegram avatars are square uploads displayed through a circular mask. The correct upload resolution is the largest size Telegram will display, and the safe area is the circle inscribed in that square:
upload size = 512×512 px minimum (1024×1024 recommended)
displayed = circular crop of the square
safe circle = diameter equals the square's width
safe margin = keep subject inside central ~90% to avoid edge clippingBecause the mask is a circle, the four corners of your square are always hidden. Anything outside the inscribed circle — about 21 percent of the square’s area in the corners — will not be shown.
Tips and example
Design your avatar on a 1024×1024 canvas, then draw a circle touching all four edges and keep your face, logo, or text inside it. For a channel logo, leave a small breathing margin so the mark is not cut by the circle. Export as PNG for flat-colour logos to keep edges crisp, or JPG for photos to keep the file small. A 1024×1024 source looks sharp on every device, including tablets where the full-screen avatar is largest.