>100
customers worldwide
Browser-based compute infrastructure for the AI era.
About Leaning Technologies
We're experts in WebAssembly. We push the boundaries of what's possible in the browser, building compute infrastructure and dev tools that can run anything in the browser. Whether it's full-stack environments like Node.js, Python and Rails, or compiled languages like C++, Java and Go. We make it run in the browser, at near-native speed, fully isolated and next to the user.
>100
customers worldwide
>18k
stars on GitHub
>1M
users across our platforms
Customers
We work with the world's best-known organizations, delivering browser-based infrastructure.
Founders
Leaning Technologies is founder-led and engineering-driven. We build ambitious technology that makes the browser a first-class execution environment, and we do it as a team: with good work, tight collaboration, and high standards.
Founder / CEO
Stefano co-founded Leaning Technologies and leads the company’s push to make the browser a universal execution layer for sandboxed compute. Before Leaning, he spent a decade in research across academia and industry labs, and is an inventor on multiple patents. A believer in ethical leadership, Stefano drives the company's focus on excellence.
Founder / CTO
Alessandro is a visionary technical leader and the main architect of Leaning Technologies' WebAssembly-based developer tools and in-browser runtimes. He is obsessed with driving the company's excellence and pursuit of quality.
Founder
Massimo co-founded Leaning Technologies and brings the operator’s view to ambitious infrastructure: turning hard technical capabilities into reliable products Enterprise teams can adopt. Massimo is an estabilished tech enterpreneur and brings a wealth of experience that grounds the company’s strategy in execution, customer outcomes, and long-term product stewardship.
A commitment to good work
We care about making good technology. That means building with security and user trust in mind, staying close to the developers and communities who rely on our work, and contributing back to open source. We aim to be the kind of company where strong engineers do their best work with clarity, autonomy, and mutual support.
Leaning Technologies
Learn how Leaning Technologies Limited protects your privacy and handles your data.
Last reviewed: 16 July 2025
Leaning Technologies understands that your privacy is important to you and that you care about how your personal data is used. We respect and value the privacy of everyone who visits this website, and only collect and use your personal data as described in this Privacy Policy. Any personal data we collect will only be used as permitted by law.
Please read this Privacy Policy carefully and ensure that you understand it.
Our Site is operated by Leaning Technologies Limited (Leaning Technologies), a limited company registered in England under company number 08227826, with registered address at Nexus, Discovery Way, Leeds, England, LS2 3AA.
This Privacy Policy applies only to your use of Our Site. Our Site may contain links to other websites. Please note that we have no control over how your data is collected, stored, or used by other websites and we advise you to check the privacy policies of any such websites before providing any data to them.
Personal data is defined by the UK GDPR and the Data Protection Act 2018 (collectively, "the Data Protection Legislation") as any information relating to an identifiable person who can be directly or indirectly identified in particular by reference to an identifier.
Personal data is, in simpler terms, any information about you that enables you to be identified. Personal data covers obvious information such as your name and contact details, but it also covers less obvious information such as identification numbers, electronic location data, and other online identifiers.
Under the Data Protection Legislation, you have the following rights, which we will always work to uphold:
For more information about our use of your personal data or exercising your rights, please contact us using the details in section 11. Further information about your rights can also be obtained from the Information Commissioner's Office or your local Citizens Advice Bureau.
Subject to the following, we do not collect any personal data from you. We do not place cookies on your computer or device, nor do we use any other means of data collection.
Our Site collects certain information automatically, including your IP address, the type of browser you are using, and certain other non-personal data about your computer or device such as your operating system type or version and display resolution.
If you send us an email, we may collect your name, your email address, and any other information you choose to give us. For the purposes of the Data Protection Legislation, we are the data controller responsible for such personal data.
The lawful basis that allows us to use this information is article 6(1)(f) of the UK GDPR (legitimate interests), in this case the proper operation and functionality of our Site. If you contact us directly, our lawful basis may also be article 6(1)(a), which allows us to use your personal data with your consent for a particular purpose.
Where we collect personal data, it will be processed and stored securely, for no longer than is necessary in light of the reason(s) for which it was first collected. We will comply with our obligations and safeguard your rights under the Data Protection Legislation at all times.
If you contact us and we obtain your personal details from your email, we may use them to respond to your email. The technical data referred to above is necessary for the technical operation of our Site.
We will not share any of your personal data with any third parties for any purposes other than storage on an email and/or web hosting server.
We will only store your personal data in the UK. This means that it will be fully protected under the Data Protection Legislation.
We will not share any of your personal data with any third parties for any purposes, subject to limited exceptions.
If we sell, transfer, or merge parts of our business or assets, your personal data may be transferred to a third party. Any new owner may continue to use your personal data in the same way that we have used it, as specified in this Privacy Policy.
In some limited circumstances, we may be legally required to share certain personal data if we are involved in legal proceedings or complying with legal obligations, a court order, or the instructions of a government authority.
You have the right to ask for a copy of any of your personal data held by us (where such data is held). Under the Data Protection Legislation, no fee is payable and we will provide the information in response to your request free of charge.
To contact us about anything to do with your personal data and data protection, including to make a subject access request, please email info@leaningtech.com.
We may change this Privacy Policy from time to time. This may be necessary, for example, if the law changes, or if we change our business in a way that affects personal data protection. Any changes will be immediately posted on our Site.
We recommend that you check this page regularly to keep up-to-date. This Privacy Policy was last updated on 16 July 2025.
Are you sure you want to exit to terminal?
Infinitely scalable, browser-based compute with zero latency, native speed, and local execution.
Adoption
users across our platforms.
Community
GitHub stars.
Customers
From NASA to Ticketmaster—in good company.
BrowserPod: Node.js REPL
Booting…Instant, interactive and shareable code demos.
Waiting for portal…Sandboxes
Run untrusted code,
safely sandboxed
in the browser.
Infinitely scalable infra
Run sandboxes in-browser with zero latency, strong data locality, at a fraction of cloud costs.
Runtimes
Run Node.js, Python, Ruby, Go, Java and C++ at near-native speed in-browser.
Coming soon
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BrowserPod
Run complex workloads safely in the browser with native-grade performance, lower cloud spend, and fully interactive user experiences.
Get started