WinRAR is technically "shareware" — after its 40-day trial ends, it keeps working indefinitely with a nag screen asking you to buy a licence (around £22-£35 depending on version), which leads many people to assume they're required to pay. You aren't. Several genuinely free, no-nag alternatives handle every file compression task a home user needs, including opening .rar files WinRAR itself created.

Key takeaway: 7-Zip is free, open-source, has no nag screens, and can both create and open virtually every common archive format including .zip, .7z and .rar — there's no practical reason to pay for WinRAR.

7-Zip: the standard free choice

7-Zip is free, open-source, and has been the go-to WinRAR alternative for years. It creates its own highly efficient .7z format (which typically compresses more tightly than .zip) as well as standard .zip archives, and it can open — though not create — .rar archives, covering the one common thing people assume they need WinRAR for. Its interface is basic and slightly dated-looking, but every function you actually need is there, including right-click context menu integration in Windows Explorer for quick "Extract Here" and "Add to archive" actions.

PeaZip: a more modern interface

PeaZip is another free, open-source option with a more contemporary-looking interface and a broader range of supported formats out of the box, including good .rar and .7z support, plus useful extras like secure file deletion and archive password management. If 7-Zip's interface feels a bit too utilitarian, PeaZip covers the same core ground with a friendlier look.

Tip: Neither 7-Zip nor PeaZip can create genuine .rar archives (that format is proprietary to WinRAR's maker, RARLAB) — but both can open and extract .rar files without issue, which covers the vast majority of real-world need.

Getting set up

  1. Download 7-Zip only from the official 7-zip.org site.
  2. Run the installer; there are no additional offers or bundled software to decline, which is unusual and welcome for a free download.
  3. After installing, right-click any file or folder in Windows Explorer to see new "7-Zip" options for compressing or extracting.
  4. To extract a .zip, .7z or .rar file, right-click it and choose "Extract Here" or "Extract to [folder name]".
  5. To compress files, select them, right-click, choose "7-Zip > Add to archive", and pick .zip (for broadest compatibility with other people) or .7z (for best compression, if only you'll be opening it).
  6. If you'd prefer PeaZip's interface instead, download it from peazip.github.io and follow the same general workflow.
Free compression tools compared
ToolCan create .rar?Interface
7-ZipNo (can open/extract only)Basic, dated but functional
PeaZipNo (can open/extract only)Modern, more polished
WinRARYesModern, but paid after trial

Before you start: download compression tools only from 7-zip.org or peazip.github.io. Because these are such commonly searched downloads, fake lookalike sites are common — always check the URL carefully before downloading.

A note on speed and everyday reliability

Beyond format support, both tools are fast enough that compression speed is rarely a practical concern on modern or even moderately old hardware — you'll notice the time difference far more with very large files (multi-gigabyte video collections, full disk image backups) than with everyday documents and photos. 7-Zip in particular is prized for squeezing files down further than the standard .zip format manages, which is genuinely useful if you're trying to fit a backup onto a smaller USB drive or email attachment limit. Both tools also support splitting a large archive into smaller multi-part files, handy for archives too big to email in one piece or for burning across multiple older, smaller-capacity discs.

Frequently asked questions

Do I need WinRAR to open .rar files sent to me?
No — 7-Zip and PeaZip can both open and extract .rar files for free, without needing WinRAR installed at all.
Is 7-Zip's .7z format compatible with everyone?
Less universally than .zip, since not every computer has 7-Zip installed by default. If you're sending a compressed file to someone else, .zip remains the safest, most universally-openable choice.
Is 7-Zip safe, given it's free and open-source?
Yes — 7-Zip is one of the longest-standing, most widely-used open-source tools in existence, with its source code publicly auditable, and no history of bundled adware in its official installer.