7Z Extractor

About the 7Z extractor

A .7z file is an archive made by 7-Zip. It packs files very small, so people use it for big downloads, game mods and backups. But to open it, you normally need 7-Zip, and 7-Zip only runs on Windows.

This page opens the 7z file in your browser instead. It works on Windows, a Mac, a Chromebook, an iPhone or an Android phone. You see every file and folder inside, then you save the ones you need. The 7z file is never uploaded.

Features

• No 7-Zip needed — nothing to install, on any device with a browser
• All the usual 7z packing — LZMA, LZMA2, BZip2 and Deflate, also solid archives
• Split 7z files — select .7z.001, .7z.002 … at once, and they are joined for you
• See, then save — every file and folder with its size and date, and a Save button for each file
• Download all as ZIP — every file in one ZIP, folders kept
• Quick look — preview pictures, text, music and short videos first
• Checked before you save — 7-Zip stores a CRC for each file; a file that fails the check is marked Damaged
• Other archives too — RAR, ZIP, TAR, TAR.GZ and ISO open on the same page

Split 7z files (.7z.001, .7z.002 …)

7-Zip can cut a big archive into parts of a fixed size, named backup.7z.001, backup.7z.002 and so on. Each part is only a piece of one long file.

• Put all the parts in one folder.
• Press Choose an archive and select all the parts together (Ctrl+A, or Cmd+A on a Mac).
• The tool joins them in number order and opens the result.

If a number is missing in the row, the tool warns you, because the joined file would be broken. The same works for other split files, like .zip.001 or .tar.gz.001. You can make such parts with our Split and Join Large Files tool.

7z files with a password

A 7z file with a password cannot be unlocked here. 7-Zip locks files with AES-256, and the archive reader in this page cannot undo that.

• If only the files are locked, you still see their names and sizes.
• If 7-Zip also hid the file names ("Encrypt file names"), the archive cannot be opened at all.
• Use 7-Zip on a computer for these files.

Why a big 7z file can be slow

Most 7z files are solid: all the files are packed as one long stream. To reach a file near the end, the tool must unpack everything before it. So the first look at a big 7z file takes longer than a ZIP file of the same size. Small and medium archives open in a few seconds.

Frequently asked questions

Do I need 7-Zip to open a 7z file?

No. This page reads the 7z file in your browser. You do not install anything.

Is my 7z file uploaded?

No. The file is read on your own device. The page downloads its archive reader from this site, but your file is never sent anywhere.

Can I open a 7z file with a password?

No. You see the names of the locked files, if they are not hidden, but the files cannot be unpacked here. Use 7-Zip on a computer.

How do I open .7z.001 and the other parts?

Select all the parts at the same time and open them together. Opening only the .001 part is not enough, because each part is just a piece.

Can I turn a 7z file into a ZIP file?

Yes. Open the 7z file and press Download all as ZIP. Every computer and phone can open a ZIP without extra apps. For a very big archive, press Make one ZIP of all files first.

What is the biggest 7z file it can open?

About 1.5 GB on a computer. The whole archive must fit in your browser's memory, and very big files inside are unpacked one at a time. On a phone, keep it to a few hundred MB.

Good to know

• The files you save keep their original names and folders.
• Big files are not unpacked at once, to save memory. Press Unpack next to the file, then Save.
• A damaged or cut-off 7z file often cannot be opened at all, because 7-Zip writes the file list at the end of the archive. Download it again.
• The ZIP of all files is named after your archive, for example backup-AppAndTools.zip.

Related tools

• RAR Extractor — open RAR files, also multi-part ones
• TAR.GZ Extractor — open .tar.gz, .tgz and .tar.xz files
• Zip and Unzip Files — pack your own files into a ZIP
• Split and Join Large Files — cut a big file into .001, .002 parts
• File Checksum — check a download with its SHA-256 before you open it

How to use it

• Press Choose an archive, or drop your .7z file on the box
• For a split 7z, select all the parts at once
• Wait while the file list is read — a big solid archive can take a little longer
• Press Save next to a file to keep it
• Or press Download all as ZIP to get every file at once
• Click the name of a picture or text file to look at it first