flowcharting

LucidChart
1 — LucidChart

Online collaboration tool with an unlimited free account that allows creation of an unlimited number of diagrams with a limit of 60 objects per diagram.
Creates flowcharts, organizational charts, website wireframes, UML (Unified Modeling Language) designs, mind maps, software prototypes, and diagram types;
Web app that works in Google Chrome, Firefox, Safari, Microsoft Edge, and Internet Explorer 8;
Cloud-based;
Offers collaboration between teams in real time;
Allows publication and sharing;
Exports to vector PDFs, JPEG, and PNG images;
Imports from Visio, OmniGraffle 6, and OmniGraffle 6 Pro;
Integrates with Google Apps, Confluence, and JIRA;
Features Enterprise-level security and admins controls.

Favorite feature
It’s a web app, and it also works in tablets.

Microsoft Visio
2 — Microsoft Visio

Diagramming and vector graphics application; part of Microsoft Office family.

Pros
Creates flowcharts, organizational charts, website wireframes, UML designs, mind maps, software prototypes, and diagram types;
Allows publication and sharing;
Features Enterprise-level security and admins controls
Not a cloud and web app;
Doesn’t allow collaboration between teams in real time;
Has to be downloaded and installed;
Windows only.

Favorite feature
Integration with Microsoft Excel, SQL server, SQL Azure, and SharePoint.

Creately
3 — Creately

Collaborative diagramming application that works offline and online.

Pros
Creates flowcharts, organizational charts, website wireframes, UML (Unified Modeling Language) designs, mind maps, software prototypes, and diagram types;
Works online and offline;
Cloud and desktop-based;
Allows publication and sharing;
Integrates with Google Apps, Confluence, and JIRA;
Plugins: FogBugz Server, Confluence Server, and JIRA;
Features Enterprise-level security and admins controls.

Favorite feature
Collaboration between teams in real time on desktop or online.

Pidoco
4 — Pidoco

Cloud-based collaboration online wireframing and prototyping tool.

Pros
Creates flowcharts, organizational charts, website clickable wireframes, software prototypes, and diagram types;
Cloud-based;
Allows collaboration between teams in real time;
Allows publication and sharing;
Integrates with Planio and JIRA;
Exports as a PNG, vector files, or as HTML;
Features Enterprise-level security and admins controls.

Favorite feature
Creates interactive prototypes.

Balsamiq
5 — Balsamiq

Graphical user interface mockup and website wireframe builder application.

Pros
Creates flowcharts, organizational charts, website wireframes, UML (Unified Modeling Language) designs, mind maps, software prototypes, and diagram types;
Not a cloud-based or a web-app;
Allows publication and sharing;
Exports to vector PDFs, and PNG images;
Features Enterprise-level security and admins controls.

Favorite feature
Integrates with Google Apps, Confluence, and JIRA.

OmniGraffle
6 — OmniGraffle

Graphical user interface mockup and website wireframe builder application available for Mac, iPhone, and iPad.

Pros
Creates flowcharts, organizational charts, website wireframes, UML (Unified Modeling Language) designs, mind maps, software prototypes, and diagram types;
Not a cloud-based or a web-app;
Available in MacOS, and iOS version only;
Imports from Visio, Photoshop with layers and XCode.

Favorite feature
Exports to JPEG, BMP, EPS, GIF, HTML images, template, Stencil, PNG, OO3, TIFF, and PDF.

Google Slides
7 — Google Slides

Create and share your work online and access your documents from anywhere for free!

Pros
Creates flowcharts, organizational charts, website wireframes, UML (Unified Modeling Language) designs, mind maps, software prototypes, and diagram types;
Available in web-app that works in Google Chrome, Firefox, Safari, Microsoft Edge, and Internet Explorer 8
Cloud-based;
Allows collaboration between teams in real time;
Allows publication and sharing;
Exports to Microsoft Word, OpenDocument Format, Rich Text Format, PDF, Plain Text, Web Page, and EPUB Publication.

Favorite feature
Works in tablets as long it’s a web app.

Other options in the market
Abstract
Nevron Draw
Visual Paradigm
Draw.io
MyDraw
Pidoco
Visual Paradigm
Pencil 2D
Balsamiq
Code2flow
Gleek
Whimsical