I'm looking for a nice, quick online graphing tool. The ability to link to, or embed the output would be handy, too.
9 Answers
desmos.com It's by far the best.
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2It can now graph derivatives and integrals! (though it may take a while for it to load up if the integral is complicated) – Simply Beautiful Art Nov 26 '16 at 00:15

1oh yeaa, agreed. I am using this since few years ago – Gambit Apr 29 '20 at 15:06
Well, I am not sure where you want to embed the graphs, but Wolfram Alpha is pretty handy for graphing. It has most of the features of Mathematica, can handle 3D functions, and fancy scaling and such. I highly recommend it.
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I am using Wolfram Alpha too but is in mobile version. I subscribed it. Very handy! – Gambit Apr 29 '20 at 15:07
I really like Geogebra as a web based graphing tool (requires Java).
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1I agree, it's also freeware and has a variety of applications. Great software to use for educational purposes too. – epsilon Dec 26 '12 at 16:57

1Also, GeoGebra can output TikZ code so that you can generate nice graphs in TeX which is very useful. – Jair Taylor Feb 24 '15 at 00:23


I was looking for a good interactive charts without flash (plain HTML + Javascript) and found out that http://DIYcharts.com is the most handy and easy one to use, much Like google Charts.
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I created a tool to plot graphics and published it several hours ago.
https://www.youtube.com/watch?v=xD080qQVaD8&feature=youtu.be
https://github.com/burlachenkok/plotter_plusplus
To use this tool you can use desktop computer to show graphics and listen income connections over the network.
Your target project can be run anywhere in any language in any platform  to update graphics just send data over the network.
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If "online" means connect to it via network  then my tool allow todo it via talking with it via simple text protocol over TCP/IP. My project contains ready to use wrappers for python. If "online" means free web service then my tool is not about it. – Konstantin Burlachenko Jan 25 '18 at 12:06

Here are the online tools I am using daily for plotting graphs and also graphing geometry:
Desmos (great usability, awesome features)
Plotlux (powerful plotter, based on fooplot)
Graph.tk (fast and easy plotter)
JSXGraph (powerful tool for plots and geometry, however, you need to know javascript)
Geodrafter (graphing of simple geometric shapes)
Geoservant 3D (graphing of simple 3D objects)
Geogebra (powerful, comprehensive, but cannot be used commercially)
Sketchometry (geometric objects, interesting usability)
As soon as I discover new tools, I am updating my post.
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I began undergrad as a math education major. I found Desmos extremely helpful for clearly displaying graphs with a user face that was simple enough for all my students to work. Combining this display with the Windows Snipping Tool lesson plans and handouts became easier to create.
Having switched majors/graduate with a math degree and working on a masters in math with a statistics concentration I really like using R. RStudio has a beautiful output; there are a few open courses on the DataCamp website for making charts and graphs in R. It's pretty neat.