You can use yEd Graph Editor

I don't know but if you would like Origin 8, I can give you

is Origin 8 like Gnuplot ?

Dear Karima Shissah,

Look the links, please.

https://inomics.com/best-open-source-software-graphing-and-plotting-0

http://thenextweb.com/dd/2015/06/12/20-best-javascript-chart-libraries/#gref

Regards, Shafagat

Excell is commonly used

Origin, but i think it is not open source

You can use yEd Graph Editor

This is my favourite one: www.draw.io

Thank you all for your responses.

yEd Graph Editor is the best karima

space claim