Smart Corner Rounder

Script for Adobe Illustrator

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Description

Smart Corner Rounder is an advanced Adobe Illustrator script that provides intelligent corner rounding capabilities for vector paths. Unlike Illustrator's built-in corner rounding tools, this script offers precise control over which corners get rounded based on angle thresholds and point selection modes.

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Key Features

Intelligent Corner Detection: Only rounds corners that meet specific angle criteria (customizable min/max angle thresholds).
Selective Point Processing: Choose to round all points, only odd-numbered points, or only even-numbered points.
Live Preview: See changes in real-time as you adjust settings.
Unit-Aware: Works with your document's current ruler units (pixels, points, inches, mm, etc.).
Batch Processing: Apply rounding to multiple selected paths simultaneously.

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Installation

1. Download the Smart Corner Rounder.jsx script file.

2. Place the script in your Adobe Illustrator Scripts folder:

⮑ Mac: /Applications/Adobe Illustrator <Version>/Presets/<Language>/Scripts

⮑ Windows: C:\Program Files\Adobe\Adobe Illustrator <Version>\Presets\<Language>\Scripts

3. Restart Adobe Illustrator if it's already running.

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Using the Script

Open Adobe Illustrator.
Create or open a document with vector paths.
Select the paths you want to apply corner rounding to.
Run the script via File > Scripts > Smart Corner Rounder.
The dialog box will open with several options:

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➊ Corner Rounding Panel

Radius Slider/Input: Set the corner radius value (0 to 500 units)

Drag the slider for quick adjustments.
Type exact values in the text field.
Use ↑↓ arrow keys for fine adjustments (Shift+↑↓ for larger steps).

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Before / After

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➋ Angle Threshold Panel

Angle Threshold Panel

Min Angle: Set minimum angle threshold (0-360°).
Only corners with angles greater than this value will be rounded.
Max Angle: Set maximum angle threshold (0-360°).
Only corners with angles less than this value will be rounded.
Example: Min=45°, Max=135° will only round corners between 45° and 135°.

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ㅤThreshold 0-45° / Threshold 45-360°

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This script analyzes the geometry of each corner before rounding it. It calculates the angle at each point and only applies rounding if the angle falls within your specified range. This prevents unwanted rounding of corners that should remain sharp, making it ideal for technical drawings, logos, and complex shapes.

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➌ Points to Affect Panel

Choose which points to process:

All Points: Round all corners meeting angle criteria.
Odd Points: Round only 1st, 3rd, 5th, etc. anchor points.
Even Points: Round only 2nd, 4th, 6th, etc. anchor points.

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➍ Apply Changes

Preview Options

Preview Checkbox: Enable/disable live preview (enabled by default)
Hide Edges: Toggle visibility of path outlines for cleaner preview

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Apply Changes

Zoom Button (✚): Click to zoom to fit your selection.
OK: Apply the rounding and close the dialog.
Cancel: Discard changes and close the dialog.
⏼: Provides access to user guide information.

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This script transforms the tedious process of manual corner rounding into an intelligent, precise, and efficient workflow that maintains creative control while saving significant time.

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#Path

Smart Corner Rounder

Version: 1.0.3

Updated: July 15, 2025

Download Smart Corner Rounder

1.0.0 – Initial release.
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Tested on MacOS:
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- Adobe Illustrator 2023 (27.0)
- Adobe Illustrator 2024 (28.1)
- Adobe Illustrator 2025 (29.0)
Supported Versions:
- Compatible with Adobe Illustrator CS6 and later, including Adobe Illustrator CC versions.
Operating Systems:
- Works on both macOS and Windows platforms.
End User License Agreement (EULA)
Last Updated: 21.12.2024
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This End User License Agreement (“Agreement”) is a legal agreement between you (“User” or “Licensee”) and Samolevsky.com (“Licensor”) regarding the use of the Adobe Illustrator scripts (“Software”). By downloading, installing, or using the Software, you agree to be bound by the terms of this Agreement.
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1. Grant of License
Licensor grants the User a non-exclusive, non-transferable, and revocable license to use the Software in accordance with this Agreement.
- Free Software: If the Software is provided for free, you may use it for personal or commercial purposes without payment, subject to the restrictions outlined in this Agreement.
- Paid Software: If the Software is provided for a fee, you may use it only after payment has been made in full.
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2. Usage Rights
You are permitted to:
- Install and use the Software on devices you own or control.
- Use the Software in your personal or commercial projects, subject to compliance with this Agreement.
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3. Restrictions
You may NOT:
- Reverse engineer, decompile, or otherwise attempt to discover the source code, underlying ideas, or algorithms of the Software.
- Reuse, incorporate, or integrate any portion of the Software into any other software, product, or project, except as expressly permitted by the Licensor in writing.
- Resell, redistribute, or share the Software, whether in its original or modified form, without prior written consent from the Licensor.
- Claim ownership of the Software or its underlying code.
- Use the Software in any way that violates applicable laws or regulations.
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4. Ownership
The Software and all intellectual property rights therein remain the exclusive property of the Licensor. This Agreement does not transfer ownership of the Software or any intellectual property rights to the User.
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5. Disclaimer of Warranties
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT. IN NO EVENT SHALL THE LICENSOR BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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6. Limitation of Liability
To the maximum extent permitted by law, Licensor shall not be liable for any damages, including but not limited to direct, indirect, incidental, special, or consequential damages, arising out of or related to the use or inability to use the Software.
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7. Termination
This Agreement is effective until terminated. Licensor may terminate this Agreement immediately if you breach any term of this Agreement. Upon termination, you must cease all use of the Software and destroy any copies in your possession.
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8. Updates and Support
Licensor is not obligated to provide updates, support, or maintenance for the Software. However, updates may be provided at the sole discretion of the Licensor.
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9. Governing Law
This Agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to its conflict of law principles.
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10. Entire Agreement
This Agreement constitutes the entire agreement between you and the Licensor concerning the Software and supersedes all prior or contemporaneous understandings regarding such subject matter.
By using the Software, you acknowledge that you have read this Agreement, understand it, and agree to be bound by its terms.
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For any questions or concerns regarding this Agreement, please contact us at hello@samolevsky.com

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Required Software

Adobe Illustrator

Learn more

Adobe Illustrator is a professional vector graphics software developed by Adobe Inc. It is widely used by designers, illustrators, and artists for creating a variety of digital artwork, including logos, icons, illustrations, typography, and complex design layouts. Illustrator is known for its precision and scalability, allowing users to create high-quality graphics that can be resized without losing clarity. Its features include powerful drawing tools, customizable brushes, advanced typography options, and seamless integration with other Adobe Creative Cloud applications. Illustrator is a go-to tool for creative professionals working on projects for print, web, and multimedia platforms.

🅰 Locating the Scripts Folder
To install a Smart Corner Rounder.jsx script in Adobe Illustrator, you need to place it in the correct directory where Illustrator can recognize it. Follow these steps to locate the Scripts folder:
1. MacOS:
  Open Finder and navigate to:
  Applications/Adobe Illustrator <Version>/Presets/<Language>/Scripts
2. Windows:
  Open File Explorer and navigate to:
  C:\Program Files\Adobe\Adobe Illustrator <Version>\Presets\<Language>\Scripts
3. Replace <Version> with your Adobe Illustrator version (e.g., 2025).
4. Replace <Language> with your language folder (e.g., "de_DE" for German, "en_US" for English).
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🅱 Installing the Script
1. Copy the Script File: Copy the Smart Corner Rounder.jsx file to the Scripts folder located in the path above.
2. On some systems, you may need administrator permissions to modify the Scripts folder.
3. Restart Adobe Illustrator: To refresh the scripts menu, close and reopen Adobe Illustrator.
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Explore our complete guide to mastering Adobe Illustrator scripts.
1. Open Adobe Illustrator and ensure a document is active.
2. Go to the top menu bar and select File > Scripts.
3. If the script is installed in the Scripts folder, it will appear in the dropdown list.
4. Click the Smart Corner Rounder script to run it.
5. The Smart Corner Rounder script will execute, and any dialog boxes or results will appear based on the script’s functionality.
☻ Before running any scripts, it’s strongly advised to save your work — especially when working with complex or large documents.

🅰 Locating the Scripts Folder
To install a Smart Corner Rounder.jsx script in Adobe Illustrator, you need to place it in the correct directory where Illustrator can recognize it. Follow these steps to locate the Scripts folder:
1. MacOS:
  Open Finder and navigate to:
  Applications/Adobe Illustrator <Version>/Presets/<Language>/Scripts
2. Windows:
  Open File Explorer and navigate to:
  C:\Program Files\Adobe\Adobe Illustrator <Version>\Presets\<Language>\Scripts
3. Replace <Version> with your Adobe Illustrator version (e.g., 2025).
4. Replace <Language> with your language folder (e.g., "de_DE" for German, "en_US" for English).
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🅱 Installing the Script
1. Copy the Script File: Copy the Smart Corner Rounder.jsx file to the Scripts folder located in the path above.
2. On some systems, you may need administrator permissions to modify the Scripts folder.
3. Restart Adobe Illustrator: To refresh the scripts menu, close and reopen Adobe Illustrator.
ㅤ
Explore our complete guide to mastering Adobe Illustrator scripts.

1. Open Adobe Illustrator and ensure a document is active.
2. Go to the top menu bar and select File > Scripts.
3. If the script is installed in the Scripts folder, it will appear in the dropdown list.
4. Click the Smart Corner Rounder script to run it.
5. The Smart Corner Rounder script will execute, and any dialog boxes or results will appear based on the script’s functionality.
☻ Before running any scripts, it’s strongly advised to save your work — especially when working with complex or large documents.

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