Open Source Licenses
heic-to.io is built on open-source software. We are grateful to the maintainers of every project below.
LGPL-3.0 components
The HEIC/HEIF decoding at the core of this site is built on LGPL-3.0-licensed libraries. In compliance with the LGPL, we load these as unmodified, separately-distributed WebAssembly modules (not statically linked into our own code), and we link to their unmodified source below.
- heic-to LGPL-3.0
Browser HEIC/HEIF decoder used by our client-side converter, loaded as an unmodified, separately-loaded WebAssembly module.
- libheif LGPL-3.0
The underlying HEIF/HEIC codec library, compiled to WebAssembly and bundled unmodified by heic-to.
- libde265 LGPL-3.0
HEVC decoder used internally by libheif.
MIT / Apache-2.0 / other permissive licenses
SvelteKit MIT
Svelte MIT
Vite MIT
Tailwind CSS MIT
fflate MIT
pdf-lib MIT
@jsquash/avif BSD-3-Clause (AV1)
@jsquash/webp BSD-3-Clause (libwebp)
gifenc MIT
exifr MIT
piexifjs MIT
Drizzle ORM Apache-2.0
Zod MIT
sharp Apache-2.0
heic-decode MIT
Piscina MIT