Open-source licenses

The converter on this site decodes HEIC photos with open-source software, sent to your browser as a separate script (/convert.js) and run only on your device.

libheif

HEIF and HEIC file decoder. Copyright Dirk Farin and contributors. Licensed under the GNU Lesser General Public License v3.0. Source: github.com/strukturag/libheif.

libde265

HEVC (H.265) video decoder used by libheif. Copyright struktur AG and contributors. Licensed under the GNU Lesser General Public License v3.0. Source: github.com/strukturag/libde265.

libheif-js

The WebAssembly build of libheif used here (version 1.23.5). Licensed under the GNU Lesser General Public License v3.0. Source and build scripts: github.com/catdad-experiments/libheif-js.

The LGPL lets you use a modified version of these libraries in place of the one on this site. The full license text is at gnu.org/licenses/lgpl-3.0.html; to request a copy of the exact source used here, email support (see the support page).