ezyZip Adds Over 100 Archive Formats and Revives 26 Dead DOS Ones

TALLINN, Estonia - Aug. 1, 2026 - PRLog -- WebbyAppy OU, the company behind the browser-based archive manager ezyZip, has completed the largest format expansion in the product's history. Seventeen new decoder engines add over 100 archive formats, taking total support past 250. The formats went out quietly through July while the desktop builds caught up with the web app, and they are now fully live in the browser and in the ezyZip Pro apps for Windows and macOS.

A Deliberately Historical Sweep
The new formats cover the DOS, CP/M, Amiga, classic Macintosh, Apple II, RISC OS and Commodore eras, the archives that carried most of personal computing's first two decades and that almost no modern tool will open. Alongside them come Mac StuffIt in every generation, Apple Archive, FreeArc and WARC web crawls. Nothing here is beta: every format ships with a passing extraction test against a real archive file, and most are verified byte for byte against the output of the format's original decoder.

Running the Original 1990s Tools
A stubborn group of DOS-era formats has no published specification and no modern decoder. The only software that reads them correctly is the original tool from the 1990s. Rather than approximate those formats and risk mangling the contents, ezyZip bundles a built-in emulator and runs the authentic extraction tool for each one. Twenty-six formats are decoded this way, including UHARC, LIMIT, HAP, BOA and AIN, producing output identical to what the original tool produced thirty years ago. Everything happens locally, and nothing is installed on the user's system.

Installers, and Files With the Wrong Name
Installers are archives too. The release opens the eleven most common Windows installer families, including Inno Setup, InstallShield, WiX Burn, Squirrel and Wise, so the files inside a setup.exe can be extracted without running it. ezyZip also identifies every file by reading its structural signature rather than trusting its name, so an archive with a wrong, generic or missing extension still opens in the correct decoder.

"Some of these archives have been sitting in shoeboxes for thirty years with nothing left alive that could open them," said Ezriah Zippernowsky, spokesmonkey for ezyZip. "So we kept the original tools in a jar, rather like a very old banana that somehow still works. Drop the file in and out come your files exactly as they went in."

Everything is live now in the free browser app at https://www.ezyzip.com and in the ezyZip Pro desktop app for Windows and macOS at https://ezyzip.pro