How to Open RAR Files in a Browser Tab with Your Own WinRAR

Running WinRAR in your browser — with your own copy Works with older 32-bit builds

Guide updated July 2026 · Runs via Wine 1.7.55 (Win32) + WebAssembly · Requires your own copy

WinRAR is the archiver almost everyone has reached for at some point to open a .rar file. This page is a bring-your-own-copy guide: WinRAR is commercial trialware, so we don't host it — but if you're on a Chromebook, a locked-down work laptop, or any machine where you can't install software, you can load an older 32-bit build of your own WinRAR.exe right here in ExeBrowser to browse and extract an archive, then download the extracted files back out. The whole thing runs locally in your browser via Wine + WebAssembly; nothing is uploaded to a server (see the license note below).

Runs in your browser tab with WebAssembly + Wine — nothing is uploaded. Click the screen to capture input; press Esc to release the mouse.

WinRAR is commercial trialware. ExeBrowser does not bundle or host it — you bring your own copy. Download an official build from rarlab.com (the trial keeps working past 40 days, but a license is required for continued use). Grab a 32-bit release; modern 64-bit-only builds will not load. Do not use cracked or "free full version" copies.

How it works & what to expect

ExeBrowser boots a real 32-bit Windows environment in your browser through Boxedwine (Wine 1.7.55 on a WebAssembly x86 emulator). WinRAR's GUI loads and behaves like the desktop app — you can browse into an archive, preview the file list, and extract to a folder. Speed sits around 10-40% of native, which is fine for opening and extracting typical archives. The catch is the engine is 32-bit only: recent WinRAR installers default to the 64-bit build, which will not load. Grab an older 32-bit release (the 3.x through 5.x era is plentiful and handles the vast majority of .rar files). If a download only offers an installer, you can often extract WinRAR.exe and its DLLs with 7-Zip on your own machine first and upload just the program folder.

The key trick: bundle the archive with the app

ExeBrowser's filesystem lives entirely in your browser's memory, and WinRAR can only see files that exist inside that virtual C:\. So you need to get both WinRAR and the .rar file you want to open into the upload. The cleanest way: put WinRAR.exe, its DLLs, and your archive in one folder on your computer, then use the pick a folder option. Inside Wine, extract the archive to a subfolder, then use Download files written by this app to pull the results back out as a zip.

Step by step

Download a 32-bit WinRAR from rarlab.com and make a folder containing WinRAR.exe (plus its .dll files) and the archive you want to open.
Keep the Win32 (default) variant and click Boot Wine above.
Use pick a folder, select that folder, choose WinRAR.exe as the entry, and Run in Wine.
In WinRAR, open your archive and extract it to a folder.
Click Download files written by this app to get a zip of everything extracted.

Honest alternative for one-off extracts

If all you need is to extract a standard RAR — not run WinRAR's full UI — emulating an x86 archiver is slower than necessary. Plenty of fully client-side, JavaScript-based RAR extractors do it natively in the browser without any emulation. ExeBrowser shines when you specifically want the real WinRAR interface, need a feature only it has, or are already running other Windows tools alongside it. For a quick one-off extract, a native browser tool will be faster. The free, open-source 7-Zip is also a solid choice here and is genuinely free to redistribute.

Frequently asked questions

Can I run WinRAR in a browser for free?

You can run the WinRAR program in your browser through ExeBrowser at no cost — the runtime is free. WinRAR itself is commercial trialware, so you must supply your own copy (download from rarlab.com). We don't host or bundle WinRAR.

Why won't the latest WinRAR load?

The Wine engine here is 32-bit only, and modern WinRAR installers default to the 64-bit build. Grab a 32-bit release instead — the 3.x through 5.x versions are widely available and open essentially all standard .rar files.

How do I open my .rar file when WinRAR can't see my disk?

ExeBrowser's filesystem lives only in your browser, so WinRAR can't reach your real drive. Put WinRAR.exe, its DLLs, and your archive in one folder, then use pick a folder to load them together. Extract inside Wine, then use Download files written by this app to get the results back.

Is anything uploaded to a server?

No. WinRAR and your archive run entirely inside your own browser via WebAssembly. Nothing is sent to a remote server — your files stay on your machine.

Is there a faster way to just extract a RAR?

Yes. If you only need to extract a standard archive and don't need WinRAR's interface, a native JavaScript RAR extractor or the free open-source 7-Zip will be quicker than emulating WinRAR. Use ExeBrowser when you specifically want the real WinRAR UI or a feature only it provides.