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Telegram Ads — AdsGram Chat Banner (21:9)

Display banner · Messaging · Verified 2026-06

Live preview

1024×439
shown at 45%

In context

On a web page

Full specification

Size (px)
Ratio21:9
Max weight1 MB
FormatsJPG, PNG
Text limits
Title 30 chars
Body 100 chars

Notes & best practice

AdsGram Telegram-client chat banner.

Wide 21:9 (240-1024px), max 1 MB.

Includes a 1:1 icon (32-1024px), max 100 KB.

Width and height shown are an example at the 21:9 ratio (1024px wide).

Official doc All Telegram Ads sizes Compare “Display banner” across platforms

Frequently asked questions

What size is the Telegram Ads AdsGram Chat Banner (21:9)?
The Telegram Ads AdsGram Chat Banner (21:9) is 1024×439 px, aspect ratio 21:9.
What is the aspect ratio of the Telegram Ads AdsGram Chat Banner (21:9)?
21:9. At the recommended resolution that is 1024×439 px.
What is the maximum file size for the Telegram Ads AdsGram Chat Banner (21:9)?
Up to 1 MB, in JPG, PNG.
What file formats does Telegram Ads accept for the AdsGram Chat Banner (21:9)?
JPG, PNG.
Why does Telegram Ads crop my AdsGram Chat Banner (21:9)?
Telegram Ads shows AdsGram Chat Banner (21:9) at 21:9. Upload exactly 1024×439 px and keep key content in the safe area so nothing gets cut off.
Is 1024×439 still correct for the Telegram Ads AdsGram Chat Banner (21:9) in 2026?
Yes. Last verified 2026-06 against the official Telegram Ads documentation.

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