Top Websites for Free Online Nautical Charts: A Comprehensive Review

Navigating the vast oceans and waterways can be a challenging task, especially without accurate nautical charts. These charts provide essential information about the depth of the water, potential hazards, and other vital details that are crucial for safe and successful navigation. In the past, obtaining nautical charts required significant investment, but thanks to technological advancements, many websites now offer free online nautical charts. In this article, we will explore some of the top websites that provide these valuable resources.

NOAA Office of Coast Survey

The National Oceanic and Atmospheric Administration (NOAA) Office of Coast Survey is a leading provider of nautical charts in the United States. Their website offers an extensive collection of free online nautical charts covering various coastal regions and waterways across the country. These charts are regularly updated with the latest information to ensure accuracy and reliability.

NOAA’s user-friendly interface allows users to easily search for specific locations or browse through their catalog. They provide detailed instructions on how to download and use their electronic navigational charts (ENCs), which can be used with compatible electronic chart display systems (ECDIS) or chart plotter software.


OpenSeaMap is a collaborative project that aims to create a free and open-source map of all maritime areas around the world. Their website provides access to numerous nautical charts contributed by sailors, researchers, and other enthusiasts from across the globe.

One notable feature of OpenSeaMap is its community-driven approach, allowing users to contribute their own data and updates. This ensures that the information remains up-to-date and relevant for fellow mariners. The website also offers additional features like weather information, port details, and points of interest along with their nautical charts.

Google Earth Pro

While not specifically designed for marine navigation, Google Earth Pro can be a valuable tool for sailors looking for free online nautical charts. The application offers high-resolution satellite imagery of the Earth’s surface, including coastal areas and water bodies.

By overlaying navigational data and markers onto the satellite imagery, users can create their own custom nautical charts. This feature allows sailors to personalize their charts based on their specific needs and preferences. Although Google Earth Pro may not provide the same level of detail as dedicated nautical chart websites, it can still be a useful resource for general navigation purposes.


ChartWorld is another excellent resource for free online nautical charts. Their website offers a vast selection of electronic navigational charts (ENCs) that cover various regions worldwide. These charts are updated regularly to ensure accuracy and compliance with international standards.

ChartWorld’s website provides easy-to-use search functions and intuitive navigation tools, making it simple to locate and download the desired nautical chart. In addition to ENCs, they also offer paper charts and other navigational publications for purchase.

In conclusion, accessing free online nautical charts has never been easier thanks to these top websites. NOAA Office of Coast Survey, OpenSeaMap, Google Earth Pro, and ChartWorld all provide valuable resources that can enhance the safety and efficiency of maritime navigation. Whether you’re a professional mariner or an avid sailor exploring new waters, these websites offer a wealth of information at your fingertips. Remember to always cross-reference multiple sources and exercise caution when relying solely on digital charts for navigation purposes.

This text was generated using a large language model, and select text has been reviewed and moderated for purposes such as readability.