Trine Zip is a modified version of PeaZip which is free and open source. You could get our source code from our website or in the about page.
The PeaZip official website:
https://peazip.github.io/
Trine Zip is a file archiver utility. The application provides an unified, natively portable, file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX.

Features of Trine Zip includes extract, create and convert multiple archives at once, edit existing archives, create self-extracting archives (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script.

Create: 7Z, ARC, Brotli, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more.

Outstanding features:

• Open, browse, view and extract archive files.
• Decompression function supports different formats:
  .7z .lzma .xz .arc .wrc .iso .udf .paq .lpaq .zpaq .pea .rar .tar .taz .tbz .tgz .bz2 .gz .zip .zipx, etc.
• Create archives easily with the GUI like the file explorer.
• Create password-protected archives.
• RAR Opener and convert rar to zip format.