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June 2026

Reduced Download Sizes

Charts require less storage space with a new image format.

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Download sizes for raster charts in ForeFlight have been significantly reduced as they transition from a less efficient PNG format to a newer AVIF image format. With up to 50% reduction in file size, charts will require less storage space while maintaining high image quality. Similar download size reductions have also been made to the Airport & Nav Database, enabling smaller, more frequent updates to aeronautical data with minimal impact on data usage.

Release notes

Release notes

  • Download file sizes for most raster charts as well as the Airport & Nav Database have been dramatically reduced, enabling smaller and more frequent updates to aeronautical data with minimal impact on your data usage.

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