While my company Beyond Code is mainly building custom high-performance eCommerce applications for our clients, we are also developing software for web application developers.
Tinkerwell is a desktop application for PHP developers that allows quick prototyping and direct application access on local and remote applications via a REPL interface. Check out its awesome features at the Tinkerwell website.
Flare is the only error tracker for Laravel applications that suggests a fix. It's a Software-as-a-Service application that tracks errors in production applications and notifies your team if something goes wrong. With Flare, you know that something broke before your customer support team gets the first support request or before your clients call you. Flare is built and run by Facade, a joint venture between Beyond Code and Spatie. Your can get more information about Flare here.