Why pick 7z over ZIP?

LZMA2 typically beats DEFLATE by 20-40% on text, code, and uncompressed data. ZIP is more universally readable; 7z is smaller.

What software opens .7z files?

7-Zip on Windows, Keka or The Unarchiver on macOS, and most Linux distros include p7zip. macOS Archive Utility does not handle .7z by default.

Yes — 7z’s default solid mode is used, which compresses similar files together for better ratios. There is no toggle in this tool.

Limited by your browser tab’s memory. Multi-gigabyte archives work on a desktop with enough RAM but compress slowly.

job card№ 2 of 19pack

Create .7z archives with high-ratio LZMA2 compression.

routeclient-local

upload0 B

formats7z

Drop files here or click to browse

Select one or more files

Up to 2 GB per file.

instructions · step by step

How to use this tool

Create a .7z archive with high-ratio LZMA2 compression entirely in your browser.

Open the Create 7z tool
Visit makemyzip.com/create-7z. The 7-Zip WebAssembly engine loads on demand.
Drop your files or folder
Drag input onto the dropzone. Folder structure is preserved inside the archive.
Pick a compression level
LZMA2 levels run from Store (no compression) to Ultra (slowest, smallest). Normal is a sensible default for most uses.
Create and download
Click Create 7z. The encoder runs locally; when it finishes, the .7z file downloads.

questions · from the clerk's desk

Frequently asked questions

Why pick 7z over ZIP?: LZMA2 typically beats DEFLATE by 20-40% on text, code, and uncompressed data. ZIP is more universally readable; 7z is smaller.
What software opens .7z files?: 7-Zip on Windows, Keka or The Unarchiver on macOS, and most Linux distros include p7zip. macOS Archive Utility does not handle .7z by default.
Does this support solid compression?: Yes — 7z’s default solid mode is used, which compresses similar files together for better ratios. There is no toggle in this tool.
How large can the input be?: Limited by your browser tab’s memory. Multi-gigabyte archives work on a desktop with enough RAM but compress slowly.

3 picks

Combine files and folders into a ZIP archive with adjustable compression levels.

Create .tar or .tar.gz archives, the standard format for Linux and macOS.

View the contents, sizes, and metadata of any archive without extracting it.