NSS BG

Free Tool

Custom emoji for Discord, Slack, and Telegram — free

AI removes the background, you set the style, download in all sizes at once.

Remove a background free→How it works

The problem

Custom server emoji build community identity on Discord and Slack, but creating them properly is tedious: finding an image, removing the background cleanly, resizing to 16×16, 32×32, 64×64, and 128×128, making sure it looks good at all sizes. Most people end up with blurry or badly-cropped results.

The NSS solution

The NSS Emoji Creator lets you upload any photo or illustration, removes the background with AI, and lets you adjust corner radius and padding. Download a ZIP with all sizes pre-generated, or download individual sizes directly from the preview grid.

How to use it

  • 1

    Custom emoji from photos (faces, pets, characters)

    Upload a photo, remove the background, set your corner radius (round corners for Discord-style, 0 for square), adjust padding, and download. The preview shows all sizes from 16px to 512px.

  • 2

    Server logo as a custom emoji

    Turn your server logo or mascot into a transparent-background emoji. PNG output with true transparency ensures it looks correct on any Discord background colour.

  • 3

    Reaction pack from illustrations

    Have a set of character illustrations? Run each through the Emoji Creator batch-style (one at a time) to produce a matching pack of custom reactions.

  • 4

    Stickers for Telegram

    Telegram stickers are 512×512 px WebP with transparent backgrounds. Use the Emoji Creator at 512px, export as WebP, and upload directly to Telegram's sticker creation bot.

  • 5

    Slack workspace emoji

    Slack accepts 128px PNG uploads. Download the 128px individual size or the full ZIP and use the 128px asset from there.

Step-by-step guide

  1. 1

    Open the Emoji Creator

    Navigate to /emoji. Drop your image — any photo, illustration, or logo works.

  2. 2

    Review the background removal

    The AI removes the background automatically. For complex edges, the result is shown in the preview.

  3. 3

    Adjust padding and corner radius

    Use the sliders to add padding (important for small sizes — avoids the subject touching the edge) and set corner radius (Discord uses rounded squares).

  4. 4

    Preview all sizes

    The preview grid shows your emoji at 16px, 32px, 64px, 128px, 256px, and 512px. Check that it reads clearly at the smaller sizes.

  5. 5

    Download

    Click "Download all (ZIP)" for all sizes at once, or click the "↓" button on any individual size in the preview grid.

Common questions

What format does Discord require for custom emoji?

Discord accepts PNG, JPEG, or GIF (for animated emoji). For static emoji, PNG with transparency gives the cleanest result on both dark and light themes.

What size should I use for Discord?

Discord accepts emoji up to 256KB at up to 128×128 px. Use the 128px PNG from the Emoji Creator ZIP.

Can I make animated Discord emoji?

The Emoji Creator produces static PNG. For animated emoji, process a short GIF through the GIF Background Remover to get a transparent animated GIF for Discord Nitro.

Does it work for Twitch emoticons?

Yes. Twitch requires 28×28, 56×56, and 112×112 px PNG. These sizes aren't listed by default, but you can use the 128px size and scale down to 112px in any image editor.

Ready to try it?

No account. No subscription. No images uploaded to any server.

Remove a background free→

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