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decode LERC tiles and display them in a Leaflet app.

live demo

So, what is LERC?

LERC is an open-source image format which supports rapid encoding and decoding for any pixel type. Users set the maximum compression error per pixel while encoding so the precision of the original input image is preserved (within user defined error bounds).

unrelatedly, Lurch is arguably a member of the Addams family



slider courtesy of refreshless


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Copyright 2017 Esri

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

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A copy of the license is available in the repository's LICENSE file.