Helping you to harness the power of modern browsers

We are Leaning Technologies

We make WebAssembly solutions to help businesses transitioning from native to modern Web Applications. Since 2012, our technologies have given organisations an alternative to rewriting existing code to HTML5, or to discontinuing mission-critical internal applications.

2012

Founded in

5

Tools on the market

100,000+

Users of the CheerpJ Applet Runner

5

Continents where our Clients come from

120,000+

End-users supported by our tools

3

Major browsers we contributed to

Enterprise WebAssembly Experts

We bring your software to the browser. Compiled automatically, executed efficiently, fully client-side. Our team of WebAssembly experts are ready to help you with your project.

Stefano De Rossi

FOUNDER / CEO

Needs. More. Coffee. Probably on a call right now.

Alessandro Pignotti

FOUNDER / CTO

Compiling compilers and finding bugs in the Matrix.

Massimo Grava

FOUNDER / CFO & COO

Stopping the business from imploding. Dadding.

Yuri Iozzelli

SENIOR COMPILER ENGINEER

WebAssembly guru-ing, tech wizz and avid speaker.

Carlo Piovesan

COMPILER ENGINEER

Overoptimizing things, using std::map compulsively. Double dadding.

Waqas Rehman

BUSINESS DEVELOPMENT MANAGER

Drinking Yorkshire tea, eating pistachios. Spreading the word.

Ryan Forde

MARKETING

Road, MTB, gravel, racing.

Lorenzo Marsicano

COMPILER ENGINEER

Human-being like.

Serena Ziviani

COMPILER ENGINEER

Obsessing over details. Compiling life, one bit at a time.

Tom Tartarin

COMPILER ENGINEER

Smashing keyboards elegantly.

Jules Saarikoski

COMPILER ENGINEER

Breaking it down before putting it back together. What could go wrong?

Mark Peerdeman

INTERN SOFTWARE DEVELOPER

Do you want to join our incredibly talented, tight-knit team?

We value a great, informal work environment, high flexibility, and having genuine fun and excitement every day at work. We work from different locations with a hybrid remote/office approach. Our main offices are Leeds, United Kingdom and Amsterdam, The Netherlands. 

Head of Enterprise Solutions

Leeds, UK

We are looking for a Head of Enterprise Services to join our rapidly growing company in our UK office (Leeds). You will be the bridge between our engineering and commercial teams.

Software Solutions Engineer

Leeds, UK

We are looking for an enthusiastic Software Solutions Engineer to join our rapidly growing company in our UK office (Leeds).

Open Positions

Want to join us? We are always looking for motivated and talented individuals.

Helping customers globally

We make WebAssembly solutions to help businesses make the transition from native to modern Web Applications.  Since 2012, our technologies have given organisations a real alternative to rewriting existing applications to HTML5/JavaScript, or to discontinuing mission-critical internal applications.

We make WebAssembly solutions to help businesses make the transition from native to modern Web Applications.  Since 2012, our technologies have given organisations a real alternative to rewriting existing applications to HTML5/JavaScript, or to discontinuing mission-critical internal applications.

History & Growth

2012 – Leaning Technologies founded by Alessandro, Massimo and Stefano

2014 – We released the first iteration of Cheerp, our open-source, enterprise-grade C/C++ compiler for HTML5 web applications.

2016 – Leaning Technologies’ first contribution to browser source code (Firefox)

2018 – Our second product CheerpJ is released, enabling Java to HTML5 compilation.

2019 – Cheerp 2.0 is released, introducing support for WebAssembly and mixed WebAssembly/JavaScript compilation.

2020 – CheerpX For Flash is announced, the only HTML5 Flash emulator allowing unmodified Flash content to run seamlessly on modern browsers.

2021 – Leaning Technologies champions its’ first contribution to the WebAssembly Standard.

2022 – We announced WebVM, a full Linux-based virtual machine running in the browser, powered by WebAssembly and the CheerpX virtualisation engine.

Blog and News

Industry and Product Insights

The performance and size of the converted code have been always quite impressive, but in the last year, Cheerp has further dramatically improved the runtime speed, and drastically reduced the compiled size, allowing us to save on bandwidth and resources, as well as to extend our customer base. As a matter of fact, the performance is so good that […] we moved to a web-only application!

Vincent Picou
CEO, Dassault Systèmes