Based on our record, Flowchart.js seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
What problems do you have with all the existing options (just a couple links I picked from a google search)? Source: almost 2 years ago
Code2Flow - An easy solution to create product flows.
asciiflow - Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
DIagrams Through Ascii Art - Java command-line tool to convert ASCII diagrams to bitmaps.
LaTeXDraw - LaTeXDraw is a graphical drawing editor for LaTeX.
Asciio - Perl application to draw ASCII diagrams in a simple, modern graphical interface.
draw.io - Online diagramming application