Art and metadata

Art

Rule	Value
Sticker format	WebP, 512 × 512, transparent
Pack size	3–30 stickers
Mix	Static or animated, never both
Static file	≤ 100 KB
Animated file	≤ 500 KB, frames ≥ 8 ms, total ≤ 10 s
Tray	96 × 96, static PNG or WebP, ≤ 50 KB
Emoji tags	Up to 3 per sticker
Identifier / name / publisher	≤ 128 characters

Add an 8 px white stroke so art reads on light and dark chats.

contents.json

{
  "android_play_store_link": "",
  "ios_app_store_link": "",
  "sticker_packs": [
    {
      "identifier": "cuppy",
      "name": "Cuppy",
      "publisher": "Example",
      "tray_image_file": "tray.png",
      "image_data_version": "1",
      "avoid_cache": false,
      "animated_sticker_pack": false,
      "stickers": [
        {
          "image_file": "01.webp",
          "emojis": ["🙂", "👋"],
          "accessibility_text": "A round smiling face waving"
        }
      ]
    }
  ]
}

Bump image_data_version when you change art. Optional URLs must start with http:// or https://.

Android metadata columns

Return in this order: sticker_pack_identifier, sticker_pack_name, sticker_pack_publisher, sticker_pack_icon, android_play_store_link, ios_app_download_link, sticker_pack_publisher_email, sticker_pack_publisher_website, sticker_pack_privacy_policy_website, sticker_pack_license_agreement_website, image_data_version, whatsapp_will_not_cache_stickers, animated_sticker_pack.

Sticker rows: sticker_file_name, sticker_emoji (comma-separated), sticker_accessibility_text.