The terms for using darkciphersystems.com and the free software published here, written in plain English.
Effective 17 October 2026 · Last updated 17 October 2026 · See also the Privacy Policy
This website, darkciphersystems.com, is run by DarkCipher Systems (Luke, "DarkCipher0x"), London, United Kingdom ("we", "us"). By using the site or downloading software from it, you agree to these terms. If you don't agree, please don't use the site or the software.
We may update these terms from time to time; the "Last updated" date shows when. Continuing to use the site after a change means you accept the updated terms.
You may browse the site, download the software, read and reuse the source code under its licence, and send bug reports. You must not:
Automated protections (rate limits and temporary IP blocks) are in place, and abusive access may be blocked or reported.
WhisperDesk, CaseKeeper, the WhisperDesk add-on SDK and sample add-ons are free and open-source software released under the MIT License. You may use, copy, modify, merge, publish, distribute, sublicense and sell copies, provided the copyright and licence notice are kept. The full text is included with each download and source archive:
MIT License Copyright (c) 2026 darkcipher0x 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.
Source code for every release is published on the Source Code page.
The software is beta software, provided free of charge, "as is" and "as available", without warranty of any kind, express or implied, including fitness for a particular purpose, accuracy, reliability or freedom from errors. Each release is tested before it is published and all source code is public for review, but we can't guarantee it will be error-free, meet your requirements or work on every system.
The same applies to this website and its content, including guides, wikis and instructions.
To the fullest extent permitted by law, DarkCipher Systems and DarkCipher0x are not liable for any loss or damage arising from your use of, or inability to use, the website or the software. This includes lost or corrupted data, damage to your computer or other devices, loss of profits, business or opportunity, and any indirect or consequential loss, however caused.
Always keep backups of important data before installing, upgrading or using the software.
Nothing in these terms limits or excludes liability that cannot be limited or excluded under the law of England and Wales, such as liability for death or personal injury caused by negligence, or for fraud. If you are a consumer, these terms don't affect your statutory rights.
Current releases are not digitally code-signed. Windows SmartScreen may warn you and Smart App Control may block installation. Whether to change Windows security settings is your decision. See the install guide, and verify downloads with the published SHA-256 checksums. Only download releases from this website.
The software includes open-source components under their own licences, which are listed in each app's licence file and documentation. They include whisper.cpp / ggml and Whisper.net (MIT), OpenAI Whisper models (MIT), sherpa-onnx (Apache 2.0) with pyannote and WeSpeaker models, Silero VAD (MIT), NAudio (MIT), PDFsharp / MigraDoc (MIT), SQLite / SQLCipher, SharpZipLib (MIT) and the WiX Toolset and Inno Setup (build tools). FFmpeg and Ollama are separate programs installed and licensed independently; they are not distributed with our software.
"DarkCipher Systems", "DarkCipher0x", "WhisperDesk", "CaseKeeper" and the associated logos identify our projects. Windows, Smart App Control and SmartScreen are trademarks of Microsoft; Twitch of Twitch Interactive (Amazon); OBS Studio of the OBS Project; AMD, NVIDIA and Intel of their respective owners; and other names belong to their owners. Their use here is descriptive only and doesn't imply any affiliation or endorsement.
Unless stated otherwise, the website's text, design and graphics are © 2026 DarkCipher Systems. You're welcome to link to any page and to quote reasonable extracts with attribution. The software and its source code are covered by the MIT License above. Links to third-party websites are provided for convenience; we aren't responsible for their content or practices.
If you find a security vulnerability in the website or software, please report it privately so it can be fixed before anyone is harmed. Use the bug report form and tick "security issue", or email (see security.txt). Please give reasonable time to fix it before disclosing publicly, and don't access other people's data or disrupt the service while testing.
These terms are governed by the law of England and Wales, and its courts have jurisdiction, without affecting any mandatory consumer protections you have under the law of the country where you live.
