ZIP Editor

What is the ZIP Editor?

ZIP is the most common archive format: one file that holds many files and folders, usually compressed. Normally changing one file inside a ZIP means extracting everything, editing and compressing it again. The ZIP Editor lets you change the contents directly: open an archive, add, rename or delete entries, and download the result. Files are processed locally and are not uploaded.

How to use

1. Drop a single .zip file onto the drop zone (or click it to choose one) to open it. Dropping any other files starts a new archive, or adds them to the open one.
2. Use Add Files or Add Folder to add more. A file with the same path replaces the existing one.
3. Use Create Folder to make a new folder; type "/" for nested folders such as docs/images.
4. Click the edit icon on a row to rename it. Changing the folder part of the New Path moves the entry; renaming a folder moves everything inside it.
5. Click the delete icon to remove a file or a folder with all its contents.
6. Click Download ZIP to save the archive. New ZIP clears it and starts over.

What the list shows

Each entry shows its path, original size, compressed size and the compression ratio. Folders are listed with their contents directly underneath, and the header shows the archive name and the number of files.

Features

• Open existing ZIP files or create new ones
• Add files and whole folder trees, create folders, rename / move and delete entries
• Size, compressed size and ratio for every file
• Shift_JIS file names (common in ZIPs made on Japanese Windows) are decoded so they do not appear garbled
• The archive is kept in this browser (up to 50 MB), so you can continue after reloading the page
• Processing runs locally with JSZip; nothing is sent to a server

FAQ

Can I extract or download a single file from the ZIP?

No. The editor changes the archive and downloads the whole ZIP. To get individual files, download the archive and extract it with your operating system.

Are password-protected ZIP files supported?

No. Encrypted archives cannot be opened, and the tool cannot add a password.

Is the archive recompressed when I edit it?

Yes. After any change the whole archive is rebuilt with standard DEFLATE compression and UTF-8 file names. If you open a ZIP of up to 50 MB and download it without changes, the original file is returned as-is.

Is there a size limit?

Archives larger than 50 MB can still be edited, but they are not kept in the browser and are lost when you reload. Very large archives are limited by your device's memory.