Guides
Archive guides & tutorials
Practical, no-nonsense write-ups on working with 7z, ZIP, RAR and friends — from opening your first archive to keeping it encrypted.
How to Password-Protect Archives: 7Z and ZIP Encryption Compared
Add AES-256 password protection to your archives in the browser - which formats support it, how header encryption works, and what to avoid.
CAB and WIM: The Windows Archive Formats You Actually Meet
What CAB and WIM files are, why Windows uses them internally, and how to peek inside either one without extra software.
Why Browser-Based Extraction Is Safer Than Uploading Files
Client-side WebAssembly tools keep archives on your device. Here is the difference in practice - and why it matters for confidential files.
What Is an ISO File? Disc Images Without the Disc
What an ISO file contains, where you encounter one, and how to open or extract its contents without burning anything.
Split Archives Explained: .001, .part1.rar and .7z.001 Files
Why big archives get chopped into numbered parts, how the different naming schemes work, and how to merge them back into one file.
How to Convert RAR to ZIP (and Why You Would Want To)
Turn RAR archives into universal ZIP files in your browser - with an explanation of what really happens during the conversion.
How to Extract RAR Files Without WinRAR (3 Ways)
Open RAR archives on Windows, macOS, a phone or a locked-down work computer - no installation required, nothing uploaded.
TAR.GZ vs TAR.XZ vs TAR.BZ2: Which Linux Archive Should You Use?
The three compressed TAR flavors compared: compression ratio, speed, memory use and when each one is the right choice.
What Is a ZIP File? The Universal Archive Format, Explained
What a ZIP file is, why every operating system opens one natively, where its famous weakness comes from, and how to work with ZIP files online.
What Is a 7Z File? The Format Behind 7-Zip, Explained
What a 7Z file is, how LZMA2 compression works, why 7z beats ZIP on size, and how to extract or create one in your browser.
What Is a RAR File? A Complete Beginner's Guide
What a RAR file is, why it exists, how it compares to ZIP and 7z, and how to open one without installing WinRAR - right in your browser.
7z AES-256 Encryption: Protecting Your Archive With a Password
How 7z password protection actually works, the difference between content and header encryption, and how to create a secure encrypted 7z online.
7z vs ZIP vs RAR: Which Archive Format Should You Use?
A practical comparison of compression ratio, compatibility, encryption and speed across 7z, ZIP and RAR, with clear recommendations.
How to Open a 7z File Online (No Software, No Upload)
A plain-English guide to extracting 7z archives in your browser, safely and privately, without installing anything or uploading your files.