Best Archiver Apps for Windows

Windows has been able to handle ZIP files since before most of its current users were born, so the first question about archiver apps is fair: why install one at all? The short answer is that the built-in support covers maybe 80% of real usage, and the missing 20% — other formats, passwords, split archives, serious compression — is exactly where the free third-party tools live.

Here's how the field looks.

The built-in ZIP support: better than nothing

Right-click, Send to, Compressed folder. Windows Explorer can create ZIP archives and extract them, no installation required. For emailing a few documents or unpacking a download, it's genuinely fine.

Where it stops:

• ZIP only. A .7z, .rar, or .tar.gz file is a dead end without extra software, and you'll hit those formats sooner than you'd think
• No password protection — no encryption at all, actually
• No split archives, so a large file can't be chopped into email-sized pieces
• Extraction is slower than dedicated tools, which matters mainly on big archives

It's the right tool exactly once: when you're on a machine where you can't install anything.

7-Zip: the default answer

7-Zip is the open-source archiver that has quietly done the world's compression work for decades. It's free, tiny, and fast, and its own .7z format routinely beats ZIP on compression ratio, which means smaller archives for the same files.

• Handles essentially every archive format you'll encounter for extraction, and creates 7z, ZIP, and a few others
• AES-256 encryption on 7z archives, with optional filename encryption
• Split archives, integrity tests, and a simple file manager included
• Integrates into the right-click context menu, so it feels native

Trade-off: the interface has the charm of a 1998 file manager, and the classic Windows context-menu integration can feel clunky on Windows 11's redesigned menu. Neither affects the actual compression work, which remains excellent. If you install one tool from this list, install this one.

NanaZip: 7-Zip for the Windows 11 era

NanaZip is an open-source fork of 7-Zip with one mission: making it feel like a modern Windows app. It's distributed through the Microsoft Store, which means sandboxed installation and automatic updates — genuinely convenient.

• Same engine lineage as 7-Zip, so the same formats, compression quality, and encryption support
• Proper Windows 11 context-menu integration, dark mode, and a cleaner settings experience
• Store updates happen automatically, so you're not running an old version with known security holes — a real point in its favor for an app whose whole job is opening files from the internet

Trade-off: it tracks 7-Zip's releases rather than leading them, and if you live entirely in classic Windows 10 land, the polish buys you less. Some users also prefer installing straight from a project site rather than through the Store — a preference, not a flaw.

PeaZip: the everything-tool

PeaZip is the free, open-source option that says yes to everything. It extracts over 200 archive formats, includes its own file manager, and adds features the others treat as out of scope: secure deletion, checksum and hash tools, encrypted password manager for archive passwords, and archive conversion between formats.

• The broadest format support here, with a friendlier graphical interface than 7-Zip's
• Built-in test, repair, and convert functions across formats
• Available as both an installer and a portable version

Trade-off: it's heavier than 7-Zip, launches slower, and its compression is powered by other engines bundled underneath — which is fine, but you're paying overhead for breadth. If you only ever touch 7z and ZIP, PeaZip is more app than you need.

Which one?

• Most people: 7-Zip, once, forever
• Windows 11 and prefer the Store: NanaZip
• Archive archaeology — odd formats, conversions, hashing: PeaZip
• Locked-down machine: the built-in ZIP support, and know its limits

One security note worth taking seriously: an archiver is the app most likely to open files from strangers. Whatever you pick, keep it updated — archive-parsing bugs are exactly the kind of thing exploits target, and the fix history across all these tools proves the point.