Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
Mailook - Identify & fix your email deliverability issues for free 👀
Zen Flowchart - The simplest tool to create flowcharts
Mailivery - Reach the Inbox, not the spam folder.
VisualSitemaps - Autogenerate visual sitemaps in seconds.
Postal - Open source mail delivery platform, alternative to Mailgun or Sendgrid