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Expr Pro

Welcome to Expr Pro—the ultimate collection of premium extensions designed exclusively for Expr users. With Expr Pro, unlock advanced features that enhance your Expr experience, streamline your workflow, and boost your productivity.

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Why Upgrade to Expr Pro?

  • Advanced Debugging with Explain: Dive deep into how Expr evaluates your expressions with the Explain feature. It's an invaluable tool for learning, debugging, and optimizing your expressions efficiently.

  • Performance Insights with Profile: Gain detailed insights into the evaluation time of your expressions. Use this data to fine-tune and speed up your expressions, ensuring peak performance.


With Explain, get a step-by-step breakdown of your expressions' evaluation process. It's like having a guide by your side, making complex expressions easier to understand and debug.

Example Usage:

foo < 0 or (bar > 10 and baz == 5) or (qux <= 1 and quux >= 10 and corge > 0.5)
1 < 0 or (99 > 10 and 50 == 5) or (25 <= 1 and 10 >= 10 and 5 > 0.5)
false or (true and false) or (false and true and true)
false or false or (false and true)
false or false


With Profile, you'll have the power to identify and reduce bottlenecks in your expressions. Optimize your projects by understanding exactly where and how your evaluation time is being spent.

Profile Example:

Expr Profile

Ready to Upgrade?

Expr Pro is available for purchase now! Elevate your Expr experience with these powerful extensions and take your productivity to the next level.

Purchase →

For more information or to purchase Expr Pro, please contact us. Let's make your Expr experience extraordinary!