Last updated: October 9, 2026
These terms cover how you use LumaBrowser, LumaByte's website, and the services the app talks to. We've kept them short and readable. If anything is unclear, email us and we'll explain in plain English.
By downloading LumaBrowser or using lumabyte.com, you agree to these Terms of Service and to our Privacy Policy. If you do not agree, do not use the software or the site.
If you are using LumaBrowser on behalf of a company or other organization, you are agreeing to these terms on that organization's behalf and you confirm you have authority to do so.
Lumabyte, LLC ("Lumabyte," "we," "us," or "our") builds and operates:
LumaBrowser is free and open source. There is no paid tier, no account, no subscription, and no license key. The source code and every installer are on GitHub.
LumaBrowser is licensed under the GNU Affero General Public License v3.0 or later (AGPL). Your rights to use, study, copy, change, and share the software come from that license, not from these terms. Nothing in these terms takes away a right the AGPL gives you.
In plain English:
The full explanation is on the open source page.
LumaBrowser is a general-purpose automation tool. You are responsible for how you use it. You agree not to:
We may block access to our services (the legacy template repository, the update check, and the extension catalog) if we reasonably believe these rules are being broken.
Lumabyte, LLC also offers LumaBrowser under a commercial license, for organizations the AGPL does not suit: those that modify LumaBrowser without publishing their changes, combine it with proprietary software, ship private extensions, or need warranty or support terms. Running unmodified official builds never needs one.
A commercial license is a separate signed agreement, arranged by email. It is a contract, not a key: it unlocks no features, and the open and commercial editions are the same code and the same installers. Scope, term, and pricing are agreed per organization. If a commercial agreement conflicts with these terms, the agreement wins. See who needs one or email [email protected].
LumaBrowser is open source software owned and maintained by Lumabyte, LLC, an Ohio limited liability company. The code is licensed to you under the AGPL as described in Section 3. The website design and the site content are owned by Lumabyte, LLC.
No trademark registration is claimed for "LumaBrowser", "Luma", or the LumaBrowser logo. Please do not use them in a way that suggests a modified build or another product is official or comes from us.
Our open-source libraries (ResonantJs, OpenGridJs) are separate and are governed by their own permissive licenses; you'll find those terms in their respective repositories.
Your content stays yours. LumaBrowser runs locally. Scripts, credentials, prompts, and browsing data live on your machine. We don't claim ownership of anything you create with the tool. The one historical exception is sanitized template data contributed by the Template Builder in versions before 2.0, which current versions no longer include; see the Privacy Policy.
You can stop using LumaBrowser at any time. Uninstall the app; there is no account or subscription to cancel.
Your AGPL license ends only as section 8 of the AGPL describes. A commercial license ends as its agreement says. We can suspend your access to our services if you materially breach these terms (for example, the acceptable-use rules in Section 4) or if we are required to by law. Where practical we'll give you a chance to fix the problem before we act.
On termination, the sections of these terms that are meant to survive (IP, disclaimers, limitation of liability, governing law) continue to apply.
LumaBrowser and the website are provided "AS IS" and "AS AVAILABLE", without warranties of any kind, express or implied. To the maximum extent permitted by law, we disclaim all warranties of merchantability, fitness for a particular purpose, non-infringement, title, accuracy, and any warranties arising from course of dealing or usage of trade.
In particular:
LumaBrowser is an AI-assisted automation product. It uses large language models and generated code to produce selectors, agent plans, extracted data, scripts, and chat responses. These outputs can be incorrect, incomplete, biased, stale, or entirely fabricated, and can change between runs.
You are solely responsible for reviewing AI-generated content before acting on it. Lumabyte, LLC is not responsible for business decisions, transactions, data extraction, data modification, workflow automations, or any other downstream actions you take in reliance on AI outputs. Selectors generated by the system may fail or produce inaccurate results without warning, especially as target websites change.
If you use LumaBrowser in a context where an incorrect output could cause harm, financial, legal, medical, safety-critical, or otherwise, you must independently verify every action before it runs.
To the maximum extent permitted by law, we disclaim all warranties, whether express or implied, including warranties of merchantability, fitness for a particular purpose, non-infringement, and title, and any warranties that the software will be uninterrupted, error-free, secure, or that outputs will be accurate or reliable. You use the software at your own risk.
To the maximum extent permitted by law, Lumabyte, LLC and its officers, members, employees, and contractors are not liable for any indirect, incidental, special, consequential, punitive, or exemplary damages, or for lost profits, lost revenue, lost data, lost goodwill, business interruption, procurement of substitute services, or reputational harm, arising out of or related to your use of LumaBrowser, AI outputs produced by it, or this website; even if we have been advised of the possibility of such damages, and regardless of the legal theory asserted (contract, tort, negligence, strict liability, or otherwise).
To the maximum extent permitted by law, our total aggregate liability for all claims arising out of or related to these terms, the software, or the website will not exceed the greater of:
For users who have paid us nothing, the cap is a flat $100 USD. This cap is the full extent of our financial exposure and applies in the aggregate across all claims; it is not multiplied per incident, per user, per machine, or per feature.
The exclusions and limits in this Section 9 form an essential basis of the bargain between you and Lumabyte, LLC, and they apply even if a limited remedy fails its essential purpose.
Some jurisdictions do not allow the exclusion of certain warranties or the limitation of certain damages, so some of the above may not apply to every user. In those jurisdictions, our liability is limited to the smallest extent permitted by law.
These terms are governed by the laws of the State of Ohio, United States, without regard to its conflict-of-laws rules. Any disputes not resolved informally will be brought exclusively in the state or federal courts located in the State of Ohio, and you consent to personal jurisdiction and venue in those courts.
If you are a consumer resident in a jurisdiction with mandatory consumer-protection rules, nothing in these terms overrides those rules.
We may update these terms over time, for example, when we add features, change services, or clarify language. The "Last updated" date at the top of this page always reflects the most recent change.
If a change materially affects your rights or obligations, we'll say so on this page before it takes effect. Changes to these terms never change the AGPL, and a commercial license follows its own agreement. Your continued use of LumaBrowser after an update means you accept the new terms.
Questions about these terms, compliance, or anything legal-adjacent (for a commercial license, email [email protected]):
Lumabyte, LLC
Email: [email protected]
Web: lumabyte.com