Zip files into one archive, in your browser
Bundle any files into a single compressed ZIP. Nothing is uploaded, there is no size cap, and the result opens on every device.
About this zip file maker
A ZIP file turns a pile of separate files into one, which is the simplest fix for email attachment limits, upload forms that only accept a single file, and sending somebody a folder of photos without twenty separate downloads.
This runs entirely in your browser using the compression built into the browser itself, so your files are never uploaded and there is no size limit beyond your own device memory. Every operating system released this century can open the result without installing anything.
How much smaller the archive gets depends entirely on what you put in it. Documents, spreadsheets, text and code often shrink by half or more. Photos and videos barely move — they are already compressed, so the tool stores them as-is rather than wasting time. Bundling many files into one is still useful even when the total size hardly changes.
How to use it
- 1Drop in the files you want to bundle, or tap to pick them. Any type works — documents, photos, spreadsheets, whatever you have.
- 2Name the archive. This becomes the filename people see when you send it, so something like "tax-2026" beats "archive".
- 3Click Create ZIP. Compression runs in your browser using its built-in compression engine, so nothing is uploaded and there is no queue.
- 4Download the ZIP and send it. It opens with the built-in unzip tool on Windows, macOS, Linux, Android and iOS — no software needed at the other end.
How much will it actually shrink?
| File type | Typical saving | Why |
|---|---|---|
| Text, CSV, code | 70–90% | Highly repetitive, compresses beautifully |
| Word, Excel, PowerPoint | 10–30% | Already zipped internally, some slack left |
| 5–20% | Streams are usually compressed already | |
| JPEG, PNG, MP4, MP3 | ~0% | Already compressed — stored as-is to save time |
If you are trying to shrink photos specifically, zipping them will not help. Use the image compressor instead — that re-encodes the pictures themselves and can cut 80% or more.
Frequently asked questions
Are my files uploaded to make the ZIP?
No. The archive is built in your browser using the compression engine already built into it. Your files never leave your device, which means there is no queue, no size limit imposed by a server, and nothing for anyone to store. It works with your internet disconnected.
How much smaller will my files get?
It depends entirely on what you zip. Text, CSV and code often shrink by 70–90%. Office documents give 10–30%. Photos, video and music barely move at all, because they are already compressed — the tool detects those and stores them as-is rather than wasting time trying. Bundling many files into one is useful even when the total size hardly changes.
Will the ZIP open on any computer?
Yes. It is a standard ZIP archive, so Windows, macOS, Linux, Android and iOS all open it with their built-in tools. Nobody needs to install anything, and it works with WinRAR, 7-Zip and everything else.
Is there a limit on how many files or how big they are?
No enforced limit — you are bounded only by your own device memory, since everything is held in the browser while the archive is built. Hundreds of documents is comfortable on a laptop. On a phone, or with very large video files, work in smaller batches.
Can I zip a whole folder?
Select the files inside it and they will be archived together. Folder structure is not preserved yet — every file lands at the top level of the archive, and duplicate names are automatically numbered so nothing is silently lost.