Zip Builder
Bundle several files into a zip archive in the browser, with a choice of compression level.
Zip Builder
The archive is assembled in the page, so the files never leave this device. Two files with the same name get a numeric suffix rather than overwriting each other.
Contents
Files—
Archive—
| Name inside the zip | Original size |
|---|
History for this tool
The most recent data you entered in this tool, stored only in this browser.
Save what you type here, in this browser? Your work would go into this browser's local storage, so a refresh or a trip to another tool does not wipe it. You also get a short list of previous entries under the form, each one restorable with a click. Nothing is ever uploaded, and there is no account.
Being straight about the trade-off: anything kept there can be read by anyone who can use this browser profile, and by any script that later runs on this site. A tool page can hold a private key, a password or a signed token. Saving is convenient; it is not private.
About this tool
Pick a handful of files and get one zip back, without installing anything. The archive is assembled in the page from the bytes already on your disk, so nothing is uploaded, and a compression level lets you trade a little time for a smaller download.
Questions
- Why do two files with the same name both survive?
- A zip cannot hold two entries under one name, so the second becomes name-1, then name-2 and so on. That keeps both files instead of quietly losing one.
- Which compression level should I use?
- The balanced level suits almost everything. Store only is quicker and is the right choice for files that are already compressed, such as a JPEG or another zip, where no level can help.
- Is there a size limit?
- Only what your device's memory allows, since the archive is built in the page. A few hundred megabytes of photographs is fine on a desktop and heavy on a phone.