Adobe Illustrator CS5 Round One Corner

Round only one or two corners of a rectangle in Adobe Illustrator CS5

** UPDATE ** This does work with CS6. See our post here:

So there have been times when I need to round only one or two corners of a rectangle in Adobe Illustrator CS5. There is a little script that Hiroyuki Sato wrote that works amazing for this! Follow the instructions below to see how to install the script and use it within Adobe Illustrator CS5.

Step 1

We need to go grab the script from Sato’s website.

Step 2

At the top of the page click on the download link for and save it to your computer.

Step 3

Unzip the file and save it somewhere on your computer. On my computer I have a scripts folder on the root of my C: drive, so that is where I keep them. To unzip it I recommend 7-zip.

Step 4

Launch Adobe Illustrator CS5 and I will show you how to use the script on a rectangle. Go ahead and draw a simple rectangle. Then use the Direct Selection Tool by pressing A, and click on one of the corners of the rectangle.

Direct Selection Tool

Step 5

Then go to File > Scripts > Other Script or press CTRL+F12.

Adobe Illustrator Scripts

Step 6

Browse to wherever you unzipped the scripts and select the “Round Any Corner.js” script.

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Round Any Corner

Step 7

It will prompt you for a radius, in my example I will use the default of 10. (Press OK)

Corner Radius

Step 8

As you can see in my picture below, it rounded one of the corners. You can do as many corners as you want by simply selecting multiple corners before you run the script. Or you could select them individually and have different radius settings.

One Corner Rounded

I find myself using this script all the time for various design projects. Always comes in handy, enjoy!

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  • angela

    Thanks, for to share your knowledge… it has been more useful
    All the best

  • David B. Bitton (@davidbitton)

    Where is the download link?

  • yutyuty

    thank you very there any different way to make round rectanguler?

    • Not that I know of… if you find or hear of another way, please post back.

  • Sarwer

    WOW…Thanx..time saver 🙂

  • CyberGolem

    What a great script. It works brilliantly!

    However, I was wondering if there is a way to create a custom button or a way to change where AI looks for scripts. Currently it’s going to straight to the base ‘COMPUTER’ window and I have to navigate to my scripts folder every time I want to use a script.

    Thanks so much for posting how to use it.

    • Glad it works for you 🙂 Unfortunately I haven’t found a way to change the default scripts location to the actual scripts folder. If you stumble across a way to do that, please post back on here and I will update the post. Thanks!

      • CyberGolem

        Absolutely, until then … shortcuts it is 🙂

  • money2

    Hi, I´ve been using this round any corner script for a while and I think it is very useful! But I wonder how to return the corner back. Is it even possible or am I just blind or that dumb that I dont see it? U know, if there is any possibility to set the radius back to 0.

    Thanx for any answer

    • You aren’t blind or dumb 🙂 The only way I know to go back to 0 radius is to click edit > undo…. or you can use the direct selection tool, select the corner points and then click the scissors at the top – “cut path at selected anchor points”. Once you cut a corner, you can use the line tool to redraw the 90 angle and reattach the anchor points/join. Hope that makes sense.

  • Koly Laye Thiome

    It’s crazy thank you for ever!!!

  • Margarita Kagelidou

    Wow!!! Thanks a lot! This is super great!!! 🙂

  • Fernando Vázquez Schmidt

    Thank you!!