imapsync - Console-based utility for migrating IMAP mailboxes.
Screenshot Machine - Screenshot machine is an online website capturing service. Creates a screenshot or thumbnail of any online web page in couple of seconds for free.
isync (mbsync) - mbsync is a command line application which synchronizes mailboxes.
URL2PNG - Screenshots as a Service. Capture snapshots of any website, right in your app, quickly and reliably.
MigrateCloudData IMAP Mail Backup Tool - A trusted software with better designs and functions to perform the backup and migration of IMAP emails.
ApiFlash - ApiFlash is a powerful serverless screenshot API built with Chromium and AWS Lambda. It can easily scale to millions of screenshots per day and has an ever growing number of satisfied big clients.