Webshot - Free and Open Source screenshot website service
Shottr - Shottr is a free macOS screenshot app with scrolling screenshots, OCR, annotation and measurement instruments.
Enpose - The simple screenshot bot
GetScreenshot - Powerful & Affordable Screenshot API with a Zapier Integration
CloudBrowser.co - A supremely flexible and reliable HTTP API that supports professionals and enterprise alike in the...
AppLaunchpad - Create free beautiful screenshots for App store/Google play