Chrome Extension: Desmos Graphing Calculator

Get the Chrome extension here

OSS (1 Sentence Summary): This is a beautifully elegant, user friendly, powerful graphing calculator provided at no cost!

The Good:

• Integrates with Google to login & option to save PDF of graph directly to Drive
• Good variety of sample graphs
• Interface is clean, interactive, and informative
• Full screen
• No advertisements
• Variety of functions - Trig, Stats, and Misc
• Export options - Email, Embed, Image URL
• Customize X,Y axis values and steps, add labels
• Projector mode enhances visibility
• Supports adding images 
• Color choice for lines & points
• Much more that I have yet to discover!

The Bad: 

• Background is only white 
• Not available offline (it is a website after all!)

Overall, this is an amazing free graphing calculator!