Create ZIP Online Free — Zip & Unzip Files
Sending ten files one by one is slow, and a single email attachment is far easier to share than a scattered folder. This free ZIP tool packs many files into one standard ZIP file you can download, email or store, and it also opens ZIP files so you can see what is inside and take out just the files you need. Everything runs in your browser: your files are never uploaded to a server, never stored, and never seen by anyone else. There is no account, no watermark and no limit on how many times you use the tool. The total size of the files you add is capped at 100 MB, which covers most documents, photos and text files comfortably, and the ZIP files this tool makes open with the built-in tools on Windows, Mac and Linux, so the person you send them to needs no special software.
Add many files to zip them, or drop a single .zip file to extract it. Total up to 100 MB.
No files selected yet.
Privacy: your files never leave your browser. Zipping runs entirely on your device.
How to Use
- Add your files. Click the drop zone and choose one or more files, or drag them straight into the box. Each file appears in a list with its name and size, and the total is shown so you can stay under the 100 MB cap.
- Create a ZIP. Click Create ZIP to pack all the listed files into a single archive. The tool loads its ZIP library, compresses each file, and shows the finished size. Use Remove beside a file if you added one by mistake.
- Download the ZIP. Click Download ZIP to save the archive, usually called files.zip. It opens with the built-in tools on Windows, Mac and Linux, and in almost any archive app on a phone.
- Extract a ZIP. To open an archive instead, add a single .zip file and click Extract ZIP. The tool lists every file inside with its size, and each entry has its own download button, so you can take out one file without downloading the rest.
Worked Example
Suppose you have three tiny text files: a.txt containing the word “hello” (5 bytes), b.txt containing “world” (5 bytes) and c.txt containing “again” (5 bytes). Add all three files, so the list shows 3 files totalling 15 bytes, then click Create ZIP. The tool packs them into one archive, files.zip, which contains exactly 3 entries named a.txt, b.txt and c.txt. The ZIP itself is a little larger than 15 bytes, because each entry carries its own header with the file name and size, but the three files inside are stored exactly as they were. Now test the other direction: add that same files.zip and click Extract ZIP. The tool lists the same 3 names — a.txt (5 bytes), b.txt (5 bytes) and c.txt (5 bytes) — and you can download any one of them on its own. Downloading a.txt gives you back the original 5-byte file with “hello” inside, byte for byte. The round trip proves the archive is a standard ZIP: what goes in comes back out unchanged.
Why Zip Files in Your Browser?
Most online ZIP tools ask you to upload your files to a remote server, where you have no control over how long they are kept or who can see them. That is a real risk when the files contain contracts, invoices, medical records or private photos. This tool takes the opposite approach: the zipping code runs on your own device, inside your browser, and the files never travel over the internet at all. It is also faster for everyday jobs, because there is no upload wait and no download link that expires. The only trade-off is that very large sets near the 100 MB cap may take a few seconds longer on an older phone, since your device is doing the compression instead of a powerful server. For the documents and photos most people zip, the archive is ready almost instantly.
Tips for a Clean ZIP File
Give your files clear names before zipping, because the names inside the archive are exactly the names the receiver will see. Keep the total under the 100 MB cap by zipping in smaller groups if you have a very large set of photos or videos. Remember that files which are already compressed, such as JPG photos, MP3 audio and MP4 video, will barely shrink further — ZIP is at its best with text, documents and uncompressed data. If you are sending the ZIP by email, check the size limit of the mail service first, since many stop at 25 MB. Finally, always open the finished ZIP once before you send it, and check the file list matches what you meant to include.
Frequently Asked Questions
Is creating a ZIP file really free?
Yes. Zipping and unzipping files on this page is completely free, with no account, no sign-up and no watermark. You can zip and unzip as many times as you like.
Are my files uploaded to a server?
No. Your files never leave your browser. Zipping and unzipping run entirely on your device using a ZIP library loaded from this site, so your files are never uploaded, stored or seen by anyone else.
What is the largest ZIP I can make?
The total size of the files you add is capped at 100 MB. Most documents, photos and text files are far smaller than that, so a normal set of files zips comfortably.
Can I unzip a ZIP file here too?
Yes. Upload a .zip file and the tool lists everything inside it with its size, then you can download any file on its own without downloading the rest.
Will my ZIP open on any computer?
Yes. The tool creates a standard ZIP file that opens with the built-in tools on Windows, Mac and Linux, and in almost any archive app on a phone. No special software is needed to open it.