MTL ExplorerReleased · 0.9.0Home

Commercial Licensing

MTL Explorer is dual-licensed:

  1. Open source under the GNU Affero General Public License v3.0 or later (AGPL-3.0-or-later).
  2. Commercial under a separate, negotiated license agreement with the copyright holder.
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When do you need a commercial license?

You need a commercial license if any of the following apply and you do not want to comply with the AGPL:

  • You want to offer MTL Explorer as a hosted service (SaaS) to third parties without publishing your modifications and your full corresponding source code (including changes to the server, APIs, frontend, tiles pipeline, etc.) under AGPL-3.0.
  • You want to embed MTL Explorer (or any part of it) in a proprietary product (including mobile apps, firmware, in-vehicle systems, outdoor hardware, closed-source SDKs) and distribute that product under terms other than AGPL.
  • You want to combine MTL Explorer with code under a license that is incompatible with AGPL-3.0 and distribute the combined work.
  • You want to remove the AGPL network-use clause obligations (e.g. the requirement that users interacting with the application over a network be offered the corresponding source code).
  • You require a commercial warranty, indemnification, SLA, or support contract that the AGPL explicitly disclaims.

Self-hosting MTL Explorer for your own private, personal, or internal non-commercial use is always free under the AGPL and does not require a commercial license.

When do you NOT need a commercial license?

You do not need a commercial license to:

  • Run MTL Explorer on your own computer or home server for personal use.
  • Fork, modify, and redistribute MTL Explorer under the AGPL-3.0, provided you publish your complete corresponding source code under the same license and preserve all copyright and license notices.
  • Contribute improvements back to the upstream project (see CONTRIBUTING.md).
  • Run MTL Explorer inside a company for purely internal, non-public, employee- only use - as long as no third parties (customers, partners, the public) interact with it over a network. (If in doubt, contact us.)

How to obtain a commercial license

Contact: hey.lueg@gmail.com

Please include:

  • Your company / legal entity name and country of incorporation.
  • Intended use case (hosted service, embedded product, internal-only, OEM).
  • Estimated number of users / instances / devices.
  • Whether you need support, SLA, indemnification, or warranty.

We will reply with a proposed agreement and pricing.

Trademarks

"MTL Explorer" and the MTL Explorer logo are trademarks of Patrick Heusser. A commercial code license does not automatically grant trademark rights. See TRADEMARK.md.