Emoji 100
Turns images into 100 × 100 PNG files for Telegram custom emoji. Fit keeps the whole image and pads the rest; fill crops it to the square.
In any imageOut PNG · 100 × 100Runs in your browser
Drop images hereor click to choose · paste works too
Next step
Create an emoji set with @Stickers using /newemojipack. Changing the options above redoes the files already in the list.