Poet.so - Capture and share Twitter posts as beautiful images
TypeSlab - Simple, shareable typographic posters
Twitter Ads - Twitter offers targeted ad placement on their ad platform.
Typorama - Typorama: Text on Photo Editor is a Typography Art and Poster Maker application created and published by Apperto Ltd.
Tweetlet - Tweetlet is a free tool that lets you create beautiful images from your tweets, text, and any other images in a snap.
Redact Photo - Redact.photo offers free and private censoring of images in the browser.