asciiflow - Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.

Pingboard - Pingboard is the employee experience suite for growing companies that put their people first.

PabloDraw - PabloDraw is an Ansi/Ascii text and RIPscrip vector graphic art editor/viewer with multi-user capabilities.

LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.

JavE - JavE (Java Ascii Versatile Editor) is a free Ascii Editor.

Visio - Simplify and communicate complex information using data-linked diagrams.