Quick facts

  1. all Telegram stickers will always be free.
  2. every .webp image file with background transparency can be send as a sticker
  3. Stickers are server-based, so they are downloaded from the server
  4. if disabled on server, stickers do not show up
  5. if Tg adds new stickers, Telegram apps don't need an update
  6. Sticker thumbnails are locally cached
  7. Stickers are only downloaded once, then locally cached
  8. not possible to disable viewing them (they are tiny!)

List of available stickers

What is .webp?

WebP is an image format employing both lossy and lossless compression. It is developed by Google.

Sticker Converting Bot

There is an unofficial (not powered by Telegram) sticker converting bot.The bot can be found at: http://telegram.me/clippy or username Clippy.

.webp conversion websites

There are websites that can handle conversion of any image type into webp.

E.g. https://cloudconvert.com/anything-to-webp or http://image.online-convert.com/convert-to-webp.