How to Create a ZIP File Online Without Installing Anything
You have several files and want to send them as one. A ZIP does that in your browser, with no installation. It has a few quirks worth knowing about, so here is the fast route and the details that avoid surprises.
Add your files, name the archive, press Create ZIP and download it. Built in your browser.
Make a ZIP in three clicks
- Open ZIP Creator and add files with Select Files, or drop them on the box. You can pick many at once.
- Edit Archive name. It starts as
archive.zip; if you leave off the extension,.zipis added when you download. - Press Create ZIP, then Download ZIP. The result box says how many files went in and how big the archive is.
While you add files, the status line shows a running count and total size, such as "6 file(s) selected" with the combined size. That total is the number to watch if the archive has to fit an email limit.
Two behaviours you should know before you rely on it
1. Files with the same name overwrite each other. Every file is stored at the top level of the archive under its own file name. The tool builds the ZIP by file name, so two files called scan.pdf from different folders cannot both exist in the archive. The tool still counts both when it reports "with 2 file(s)", but the archive holds only one entry. Rename one of them before you add them, for example scan-march.pdf and scan-april.pdf, and check the contents with Archive Viewer afterwards.
2. Do not expect the ZIP to be smaller. The tool uses the default setting of the JSZip library, which stores files without compressing them, and it offers no compression option. The archive is therefore about the combined size of the files you add, plus a small overhead for the file list. That is fine for the usual goal, which is to send many files as one. If your goal is a smaller file, a ZIP from this tool will not do it. Photos and PDFs are already compressed anyway, so even a compressing ZIP gains little on them. For real size reduction use Compress PDF for PDFs or the JPG compressor for photos.
What ZIP Creator does not do
| You want | Possible here? | Instead |
|---|---|---|
| Folders inside the ZIP | No, files go at the root | Build the folder structure in a desktop archiver |
| A password on the ZIP | No, it is a standard unencrypted archive | For a PDF, use Protect PDF on the file itself |
| Smaller size | No, files are stored not compressed | Compress the files first |
| Split into 10 MB parts | No | Make several smaller ZIPs yourself |
Practical limits
The tool sets no file-count or size limit, but it builds the archive in your browser's memory. A handful of documents is trivial. Hundreds of large videos on a phone may fail with "Something went wrong while creating the ZIP." If that happens, make smaller archives and send them together, or try a computer.
Names matter more than people expect. Use short names without unusual characters, because the receiver's program has to cope with them. Put dates in year-month-day order so files sort correctly, and avoid starting every file with the same long phrase, since only the first part is visible in narrow lists.
Good uses for a ZIP made this way
- Several photos or PDFs for one email. Before you do, merge related PDFs into one file with Merge PDF. One document is easier to read than a bundle.
- A project hand-off. Name the archive after the project and the date so it is identifiable when it sits in a downloads folder.
- Bundling converter output. Several of our tools download a ZIP themselves, as in converting many images at once. Use ZIP Creator for the files that did not come in one.
The recipient opens it by double-clicking on most computers, or with this online unzip guide if they have nothing installed.
Check the finished archive before you send it
It takes thirty seconds and catches the overwrite problem above. Download the ZIP, then drop it onto Archive Viewer. It lists every entry with its size, a total file count and a summary of compression. Compare the file count there with the number you added. Because ZIP Creator does not compress, you should also see close to 0% smaller on the summary line, which is a quick confirmation that nothing odd happened. If the count is lower than expected, find the duplicate names, rename them and build the archive again. Keep the original files until the recipient confirms the ZIP opened properly.
Privacy and loading
The archive is built in your browser, and the tool states that your files are not uploaded. The JSZip library is loaded from a public CDN when the page opens, so the page needs a connection to start. The files themselves are not part of that request.
Frequently Asked Questions
Can I create a ZIP with folders inside it?
No. ZIP Creator puts every file at the top level of the archive under its own file name.
Why does my ZIP contain fewer files than I added?
Files are stored by name, so two files with the same name end up as one entry. Rename them before adding them and check the result with Archive Viewer.
Will a ZIP from this tool be smaller than the original files?
Not noticeably. The tool stores files without compressing them, so the archive is roughly the combined size plus a little overhead.
Can I put a password on the ZIP?
No, it creates a standard unencrypted archive. To lock a PDF, use Protect PDF on the file itself.
Is there a limit on files or size?
The tool sets none, but the ZIP is built in browser memory. Very large sets can fail, especially on phones.
What happens if I forget the .zip extension?
The tool adds .zip to the archive name when you download it.