About GravesZIP
Version 1.0.0
Published by GravesWare, LLC
Luke Graves — Owner & Founder, Developer
Copyright © 2026 GravesWare, LLC. All rights reserved.
Support: support@gravesware.com
Website: gravesware.com
GravesZIP is an archive manager that puts encryption first, built with Avalonia and published by GravesWare, LLC. It opens, creates, tests and extracts ZIP archives, encrypting with AES-256 whenever you set a passphrase — entirely on your own machine.
GravesZIP makes no network connections of any kind: no telemetry, no analytics, no crash reporting, no update check and no licensing call-home. See the Privacy Statement for exactly what is written to your computer and what is not.
About GravesWare, LLC
GravesWare, LLC builds genuinely useful software that does not collect more than it needs — which, in practice, means it collects nothing. No telemetry, no tracking, no data harvesting. You install it, you own it, and nothing you do inside it leaves your machine. GravesWare is independent and self-funded, built deliberately, one release at a time.
Other GravesWare software: GravesMail, a local-first, privacy-first email client; GravesPDF, a PDF reader and editor that works entirely offline; and GravesBook, a private checkbook register. See gravesware.com for the full catalog.
Third-party notices
GravesZIP incorporates the following third-party components. Each remains the property of its respective owners and is used under the licence shown. Licences below were taken from the published package metadata of the exact versions distributed with this release.
| Component | Version | Licence | Purpose |
|---|---|---|---|
| SharpZipLib | 1.4.2 | MIT | ZIP, tar, gzip and bzip2 handling, including the WinZip AES-256 (AE-2) encrypted ZIP format — github.com/icsharpcode/SharpZipLib |
| Avalonia | 12.1.2 | MIT | Cross-platform UI framework — avaloniaui.net |
| Avalonia.Desktop | 12.1.2 | MIT | |
| Avalonia.Themes.Fluent | 12.1.2 | MIT | |
| Avalonia.Fonts.Inter | 12.1.2 | MIT | |
| CommunityToolkit.Mvvm | 8.4.2 | MIT | MVVM primitives — github.com/CommunityToolkit/dotnet |
| SkiaSharp | 3.119.4 | MIT | 2D graphics bindings, pulled in by Avalonia — github.com/mono/SkiaSharp |
| HarfBuzzSharp | 8.3.1.3 | MIT | Text shaping bindings, pulled in by Avalonia |
Native components are compiled libraries bundled inside the application, and belong to the user interface rather than to archive handling. GravesZIP contains no native code of its own and loads no library at runtime. The packages that distribute them and the upstream projects themselves carry separate licences; both are listed.
| Component | Distributed via | Licence | Upstream |
|---|---|---|---|
| Skia | SkiaSharp native assets | MIT | Google LLC — BSD-3-Clause — skia.org |
| HarfBuzz | HarfBuzzSharp native assets | MIT | Upstream project — MIT-Modern-Variant — harfbuzz.github.io |
| Font | Distributed via | Licence | Typeface |
|---|---|---|---|
| Inter | Avalonia.Fonts.Inter | MIT | Typeface by Rasmus Andersson, SIL Open Font License 1.1 — rsms.me/inter |
A note on 7-Zip
GravesZIP does not include, link, or require 7-Zip.
An earlier version of this product bound the native 7-Zip library. That was abandoned deliberately. 7-Zip is licensed under the GNU Lesser General Public License, which entitles a user to replace the library with their own build — an entitlement that cannot be honoured inside a statically linked, signed iOS application. Rather than ship a product whose licence GravesZIP could not satisfy on one of its platforms, the archive handling was rewritten on SharpZipLib, which is MIT and pure managed.
7-Zip remains an excellent program, and GravesZIP produces ordinary ZIP archives that 7-Zip opens. It simply is not part of this software, and no LGPL obligation attaches to GravesZIP.
Licence texts
MIT License
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.
BSD 3-Clause License
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
SIL Open Font License 1.1
The full text is available at scripts.sil.org/OFL. The Inter typeface is used under its terms; no modification has been made to it.