Third-party licenses
Last updated: October 23, 2026 · program version 2026.10.23
VolleyDeep uses open-source components written by other developers, and we thank them. Below is the list of those distributed with the program, the bench app, the team cloud and the Android app, with the license of each one. These licenses apply only to those components: the rest of VolleyDeep is proprietary software.
Windows program
Included in VolleyDeep, VolleyDeep Panchina (the bench app) and VolleyDeep Live Share.
| Component | Version | License |
|---|---|---|
| PythonIncludes bzip2, libffi, expat, zlib-ng, libmpdec, zstd, xz and HACL*, under the licenses listed in the Python license. | 3.14.6 | PSF-2.0 |
| OpenSSL | 3.5.7 | Apache-2.0 |
| PyInstaller (program launcher) | 6.21.0 | GPL-2.0-or-later with bootloader exception |
| pywebviewIncludes domJSON (MIT). | 6.2.1 | BSD-3-Clause |
| Bottle | 0.13.4 | MIT |
| proxy_tools | 0.1.0 | MIT |
| Python.NET | 3.1.0 | MIT |
| clr-loader | 0.3.1 | MIT |
| cryptographyIncludes OpenSSL and some Rust libraries under the MIT or Apache-2.0 license. | 50.0.0 | Apache-2.0 OR BSD-3-Clause |
| bcrypt | 5.0.0 | Apache-2.0 |
| CFFI | 2.1.0 | MIT-0 |
| pycparser | 3.0 | BSD-3-Clause |
| certifiThe source code is available at the link. | 2026.7.22 | MPL-2.0 |
| setuptoolsIncludes backports.tarfile, jaraco, more_itertools, packaging, tomli and wheel. | 83.0.0 | MIT |
| packaging | 26.2 | Apache-2.0 OR BSD-2-Clause |
| typing_extensions | 4.16.0 | PSF-2.0 |
| PillowIncludes FreeType (FTL), Little CMS (MIT), libwebp (BSD-3-Clause), libavif (BSD-2-Clause), libjpeg-turbo (IJG and BSD-3-Clause), OpenJPEG (BSD-2-Clause), libtiff (libtiff) and zlib-ng (Zlib). | 12.3.0 | MIT-CMU |
| defusedxml | 0.7.1 | PSF-2.0 |
| qrcode | 8.2 | BSD-3-Clause |
| pypdfium2Includes PDFium 153.0.7999 (BSD-3-Clause) and its libraries: abseil, agg, fast_float, FreeType, ICU, Little CMS, libjpeg-turbo, OpenJPEG, libpng, libtiff, llvm-libc, simdutf and zlib. | 5.13.0 | BSD-3-Clause AND Apache-2.0 |
| NumPyIncludes OpenBLAS and LAPACK (BSD-3-Clause) and the GCC runtime (GPL-3.0 with GCC Runtime Library Exception 3.1). | 2.5.2 | BSD-3-Clause |
| PyYAML | 6.0.3 | MIT |
| charset-normalizer | 3.4.9 | MIT |
| pywin32 | 312 | PSF-2.0 |
| imageio-ffmpeg | 0.6.0 | BSD-2-Clause |
Video: FFmpeg
To record, compress and cut videos, VolleyDeep uses FFmpeg, a separate program that VolleyDeep starts when needed. Version 9.0.1 and version 7.1 (bundled with imageio-ffmpeg) are included, in the “essentials” builds from gyan.dev.
In these builds FFmpeg is distributed under the GNU General Public License, version 3 or later (GPL-3.0-or-later), because it contains libraries such as x264, x265, Xvid, libvpx, libaom, libvidstab, Rubber Band and others. The license text is included with the program and is available at gnu.org.
Source code. The complete source code of FFmpeg and of the libraries included in the distributed versions is available on request: write to info@volleydeep.com.
Program screens
Charts, PDF printouts, Excel exports and icons inside the VolleyDeep screens.
| Component | Version | License |
|---|---|---|
| Chart.jsIncludes @kurkle/color (MIT). | 4.4.1 | MIT |
| jsPDFIncludes FileSaver.js (MIT), omggif (MIT), Adobe’s JPEG encoder (BSD-3-Clause), a WebP decoder (MIT) and a Unicode bidirectional algorithm implementation (MIT). | 2.5.1 | MIT |
| jsPDF-AutoTable | 3.8.2 | MIT |
| ExcelJSIncludes JSZip (used under the MIT license), pako (MIT and Zlib), core-js, buffer, safe-buffer, elliptic, bn.js, saxes, dayjs, fast-csv and uuid (MIT), and ieee754 (BSD-3-Clause). | 4.4.0 | MIT |
| Tabler Icons | 3.48 | MIT |
Team cloud and website
| Component | Version | License |
|---|---|---|
| Barlow and Barlow CondensedCopyright 2017 The Barlow Project Authors. | fontsource 5.3.0 | OFL-1.1 |
| JetBrains MonoCopyright 2020 The JetBrains Mono Project Authors. | fontsource 5.3.0 | OFL-1.1 |
| Tabler Icons | 3.48 | MIT |
Android bench app
| Component | Version | License |
|---|---|---|
| Kotlin Standard Library | 2.2.10 | Apache-2.0 |
| JetBrains Annotations | 13.0 | Apache-2.0 |
Microsoft components
The program includes some files that Microsoft allows developers to redistribute with their applications, under the terms of its licenses: the Microsoft Edge WebView2 SDK 1.0.3856.49, the Visual C++ 14.42 runtime, the Universal C Runtime (Universal CRT) and the .NET Standard compatibility libraries. The program window uses Microsoft Edge WebView2, which is usually already installed on Windows 10 and 11.
License texts
The full texts of the licenses mentioned on this page are available at the links below.
- MIT and MIT-0
- BSD-2-Clause
- BSD-3-Clause
- Apache-2.0
- PSF-2.0 (Python)
- MPL-2.0
- GPL-3.0 and GCC Runtime Library Exception
- PyInstaller (GPL-2.0 with exception)
- SIL Open Font License 1.1
- MIT-CMU (Pillow)
- Zlib
- FreeType License (FTL)
If you think a component or an attribution is missing, write to us at info@volleydeep.com and we will fix it.