Unzipping data from Zip or Rar files is remarkably easy – utilize one of the best extraction software available. However, there are situations where installing software on your computer is not feasible (such as on a library PC). In such cases, you can use online unzipping tools without the need for installation.

Extract.me

Extract.me stands out as the premier file extraction tool on the Internet. While other tools may specialize in certain formats, Extract.me is compatible with over 60 different file formats. It also supports password-protected files and multi-part archive files.
Using Extract.me is incredibly user-friendly. When you access the site, you can click the 'Choose File' button to add a file to the tool or simply drag a file from Explorer into the browser window. You can also add a file from Google Drive or Dropbox. The website will unzip the file and then display each individual file for you to download all at once or one by one.
If you encounter a red progress bar while using Extract.me, try accessing the site in incognito mode. This can help resolve any issues hindering the website's operation.
ezyZip

If Extract.me isn't suitable for you, give ezyZip a try. While this website doesn't support as many formats as Extract.me, it still includes some popular file types. You can switch between different file types by clicking the dropdown arrow next to the 'Unzip' tab in the menu.
Drag your files into the upload window. If you only see a spinning circle, disable ad blockers or browse in incognito mode. After extraction, you can download each file individually.
ezyZip is a tool worth using in the long run as it also comes with file compression capabilities.
Unzip-Online

Unzip-Online can handle both Zip and Rar files. The extraction process is quick and functions without the need to disable extensions or use incognito mode. However, its main attraction lies in its security policies.
If you're concerned about your files being stored on the website after completion, Unzip-Online commits to deleting files after 24 hours from the extraction time. The website also has detailed privacy policies, making it a good choice for those concerned about privacy.
Files2Zip

Files2Zip supports a minimal list of formats: it only supports .zip format. Despite its lack of diversity, this tool's speed is absolutely impressive.
The tools mentioned above may take a bit of time to read files and extract their contents. In contrast, Files2Zip instantly unzips any moderately sized Zip file. Afterward, you can click on any file to download it to your computer.
You can also utilize Files2Zip to create compressed files. Simply upload anything you want, and the website will understand your needs.
After the file is compressed, you'll have the option to download it to your computer, send it via email, or upload it to Dropbox. The compression process is as swift as the extraction, making it an excellent way to compress a file when no file compression tools are available on your computer.
Google Drive

You might know Google Drive as an online storage service, but did you know it can also handle your Zip files? Just upload a Zip file and double-click to open it like a regular file. Note: You can only view the files and not extract them unless you use a ZIP Extractor tool supported for Google Drive.
Utilize Mobile Applications
In addition to online tools, you can also resort to mobile applications when your computer lacks installed extraction programs. Termed as 'mobile apps,' you can place them on USB drives or memory cards. Then, when using any computer, plug in your USB to use the app without installing it on the computer – everything will operate from your USB.
Download and try out mobile apps like 7-Zip or PeaZip; you'll find them incredibly convenient.
