Videlu

Licences

Videlu's own code is MIT-licensed. Its installers also contain software from other projects — most importantly FFmpeg, which is under the GPL. This page is the notice that goes with the downloads, and it is where the FFmpeg source can be found.

Videlu — MIT

MIT License

Copyright (c) 2026 Videlu contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

FFmpeg and FFprobe — GPL-3.0-or-later

Every Videlu installer bundles one ffmpeg and one ffprobe binary. Titles, trims, joins and the final render all run through them. They are not modified, and they are not linked into Videlu — the app runs them as a separate process over a command line, which is why Videlu's own code stays MIT.

The binaries come from different upstream builds per platform, and every one of them is configured --enable-gpl --enable-version3, which makes it GPL-3.0-or-later:

Platform	ffmpeg	ffprobe
macOS (arm64, x64)	ffmpeg.martin-riedl.de release build, per architecture	ffmpeg.martin-riedl.de release build, per architecture
Windows (x64)	`ffmpeg-static` — FFmpeg 6.1.1, a gyan.dev essentials build	`ffprobe-static` — FFmpeg 4.0.2
Linux (x64)	BtbN/FFmpeg-Builds `linux64-gpl`	`ffprobe-static` — FFmpeg 4.0.2, a johnvansickle.com build

Where to get the source

The GPL requires that the source corresponding to these binaries is available to anyone who receives them. FFmpeg's source is published by the FFmpeg project at ffmpeg.org/download.html, and each bundled build identifies which revision it is:

macOS ffmpeg and ffprobe — report ffmpeg version 9.0-https://www.martin-riedl.de, i.e. the FFmpeg 9.0 release.
Linux ffmpeg — pinned to one dated BtbN autobuild, autobuild-2026-07-31-14-10, whose FFmpeg revision is in the filename it ships under: ffmpeg-N-125875-g5d4d3bdc61-linux64-gpl.
Windows ffmpeg — reports 6.1.1-essentials_build-www.gyan.dev, i.e. the FFmpeg 6.1.1 release, published by the ffmpeg-static npm package. Source: ffmpeg.org/releases/ffmpeg-6.1.1.tar.xz.
Windows and Linux ffprobe — both are FFmpeg 4.0.2, from the ffprobe-static npm package. Source: ffmpeg.org/releases/ffmpeg-4.0.2.tar.xz.

That last one is worth being explicit about, because it is the entry whose original publishers are gone: the Linux ffprobe was built by johnvansickle.com, which no longer answers, and the Windows one came from zeranoe, which shut down in 2020. Neither can hand anybody a source tarball today. The FFmpeg project's own archive can, and it is linked above — 4.0.2 is a numbered FFmpeg release and is still published there.

You can read the exact version and configuration out of the copy you downloaded, rather than taking this page's word for it. Inside the installed app, run the bundled binary with -version.

These are the directions to the Corresponding Source, and they are meant to be followed without asking anyone: each build above names the exact FFmpeg revision it was made from, and that revision is downloadable from the FFmpeg project's own public archive. Nothing here is a build made from private or modified sources.

libx264

Videlu deliberately prefers the libx264 encoder, which is a GPL component, and falls back to VP9/WebM when it is unavailable.

DejaVu Sans — Bitstream Vera Fonts License

DejaVuSans.ttf, unmodified, is bundled in the installers because FFmpeg's drawtext filter needs a real font file on disk to draw a title. Glyphs imported from the Arev fonts are © Tavmjong Bah; DejaVu's own changes are released into the public domain. The full licence text ships alongside the font inside the app.

Lucide icons — ISC

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Electron, Chromium and Node.js — MIT / BSD-3-Clause / MIT

Videlu is an Electron app. Electron ships its own LICENSE and LICENSES.chromium.html, and both are included in every packaged copy's resources.

Bundled npm dependencies

dotenv — BSD-2-Clause
electron-updater — MIT