A Map Channels project

Support Dual Maps

Dual Maps is free, open source, and built with care. Your support keeps it alive and growing.

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Support the Project

Dual Maps and Map Channels has been free to use since 2008. Keeping it that way takes real time and real money.

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Ongoing development New features, mobile improvements, bug fixes, and keeping pace with Google's evolving APIs all take significant effort.

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Open source commitment Dual Maps is now published as open source so the community can learn from it, contribute to it, and build on it freely.

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Hosting & infrastructure Servers, domains, and SSL certificates keep the maps accessible at mapchannels.com and dualmaps.com year-round.

Even a small one-time donation makes a real difference and helps ensure Dual Maps remains free and actively developed.

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Questions, feedback, feature requests, or bug reports — we'd love to hear from you.

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Have an idea for a new feature or a way to improve Dual Maps? We actively read and consider every suggestion.

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Found something that isn't working correctly? Let us know the location, device, and browser and we'll investigate.

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Interested in embedding Dual Maps in your website or application, or exploring a commercial partnership with Map Channels?

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Want to contribute to the codebase or discuss the project architecture? Reach out and join the conversation.