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About this tool
Export server banners, icons, invite splashes, emoji and stickers at exact Discord dimensions and limits.
The Discord Banner Size Generator resizes an image to Discord's exact asset dimensions — 960×540 server banner, 1920×1080 invite splash, 512×512 server icon and avatar, 600×240 profile banner, 800×320 event cover, 128×128 emoji and 320×320 sticker — and tells you before you export whether it will fit, crop, or go soft. It shows the crop percentage or letterbox bars for each fit mode, checks the exported file against Discord's 256 KB emoji and 512 KB sticker ceilings, and marks any enlargement past 125% as visibly soft. For circular assets it also draws the safe square, which is the diameter divided by √2.
Open Discord Banner Size Generator on AltFTool — it loads instantly in your browser.
Choose Server banner, Profile banner or Event cover in the Banner type dropdown.
Fill in Headline/text, Server/brand name and Design notes, for example “Keep logo readable on mobile”.
Read the Discord banner spec panel — 960 × 540 px canvas, 16:9 aspect ratio, 80 px edge padding — then press Copy output.
Fill mode reports the exact percentage of the image that falls outside the frame, so you find out now instead of after uploading.
A circular crop keeps only 78.5% of a square canvas, so the tool draws the inscribed square — 70.7% of the diameter — that artwork must sit inside.
Any enlargement past 125% is called out with the minimum source size you should have started from.
960×540 pixels, a 16:9 frame that sits above the channel list, and it is only available once the server reaches boost Level 2. The invite splash is a separate, larger asset at 1920×1080 and unlocks at Level 1.
A custom emoji must be 256 KB or smaller and a sticker 512 KB or smaller. Emoji are uploaded at 128×128 but render around 32 px in chat, so fine detail disappears; stickers are uploaded at 320×320 and display far larger.
About 78.5% of its area — the inscribed circle is π/4 of the square — and everything in the four corners is clipped. To guarantee nothing important is lost, keep the artwork inside a centred square of side diameter ÷ √2, which is roughly 362 px on a 512 px icon.
Fill when the subject is central and you can lose the edges; Fit when nothing may be cropped and you accept background bars; Stretch essentially never, because it distorts the image whenever the source and target aspect ratios differ. Whichever you pick, downscaling from a larger source is always cleanest — every exported pixel then comes from real image data.