lvgl/COPYRIGHTS.md

LVGL uses the following third-party libraries. Each entry lists its SPDX license expression below. The full license text is, for most libraries, found in the corresponding library folder (see the paths); some libraries only reference their license rather than shipping the full text. A machine-readable inventory is available in sbom/.

Barcode (Barcode generator)

• Path: src/libs/barcode
• Source: https://github.com/fhunleth/code128
• License: BSD-2-Clause

FreeType (Font rendering library)

• Path: src/libs/freetype
• Source: https://github.com/freetype/freetype
• License: FTL OR GPL-2.0-or-later
• Note: Only the interfaces are used; FreeType itself is not part of LVGL.

Liberation Sans (default demo font)

• Path: src/libs/freetype/LiberationSans-Regular.ttf
• Source: https://github.com/liberationfonts/liberation-fonts
• License: OFL-1.1
• Note: Font asset bundled alongside the FreeType interface; licensed separately from FreeType.

LodePNG (PNG decoder)

• Path: src/libs/lodepng
• Source: https://github.com/lvandeve/lodepng
• License: Zlib

LZ4 (Compression/Decompression)

• Path: src/libs/lz4
• Source: https://github.com/lz4/lz4
• License: BSD-2-Clause

QR Code (QR code generator)

• Path: src/libs/qrcode
• Source: https://github.com/nayuki/QR-Code-generator
• License: MIT

ThorVG (Vector graphics rendering)

• Path: src/libs/thorvg
• Source: https://github.com/thorvg/thorvg
• License: MIT

RapidJSON (JSON parser/generator)

• Path: src/libs/thorvg/rapidjson
• Source: https://github.com/Tencent/rapidjson
• License: MIT AND BSD-3-Clause
• Note: Bundled inside the ThorVG tree (used by ThorVG's Lottie parser); licensed separately from ThorVG. The bundled msinttypes helper (rapidjson/msinttypes) is BSD-3-Clause (Copyright (c) 2006-2013 Alexander Chemeris), hence the combined license expression.

TinyTTF

• Path: src/libs/tiny_ttf
• Source:
  • https://github.com/nothings/stb (Only parts are integrated)
  • https://github.com/codewitch-honey-crisis/tiny_ttf (Modified version of the original STB library)
• License: MIT OR Unlicense

TJPGD (JPEG decoder)

• Path: src/libs/tjpgd
• Source: http://elm-chan.org/fsw/tjpgd/00index.html
• License: LicenseRef-TJpgDec

TLSF (Two-Level Segregate Fit memory allocator)

• Path: src/stdlib/builtin
• Source: https://github.com/mattconte/tlsf
• License: BSD-3-Clause

Printf (Printf formatting library)

• Path: src/stdlib/builtin
• Source: https://github.com/mpaland/printf
• License: MIT

FT800-FT813 (EVE GPU driver)

• Path: src/libs/FT800-FT813
• Source: https://github.com/RudolphRiedel/FT800-FT813
• License: MIT

AnimatedGIF (GIF decoder library)

• Path: src/libs/gif
• Source: https://github.com/bitbank2/AnimatedGIF
• License: Apache-2.0

NanoVG (Anti-aliased vector graphics rendering)

• Path: src/libs/nanovg
• Source: https://github.com/memononen/nanovg
• License: Zlib
• Note: Compiled when LV_USE_NANOVG (or the LV_USE_DRAW_NANOVG backend) is enabled.

FrogFS (read-only filesystem)

• Path: src/libs/frogfs
• Source: https://github.com/jkent/frogfs
• License: MPL-2.0