About this tool
Package documents, assets, exports, or project folders into one portable standard ZIP archive without uploading source files.
ZIP File Maker validates actual files and relative folder paths, creates a standards-based unencrypted archive in browser memory, and checks its central-directory metadata before download.
- Accepts up to 500 files and 500 MB while rejecting absolute, traversal, ambiguous, oversized, and cross-platform duplicate entry paths.
- Provides store, fast, balanced, and maximum compression with progress, cancellation, and locked source settings during creation.
- Checks the generated central directory entry count, exact paths, source sizes, duplicate names, and encryption flags before download.
How to use ZIP Maker
Add individual files or a folder, inspect accepted paths and rejection evidence, choose a portable archive name and compression level, then create, verify, download, and open the ZIP before deleting sources.
When this tool is useful
- When several documents or assets must be uploaded together.
- When preserving a folder structure for handoff or backup.
- When already-compressed files need fast packaging without recompression.
Practical tips
- Use no compression for JPG, MP4, PDF, and existing archives when speed matters.
- Use a dedicated trusted application when archive encryption is required.
- Cancel a long build before changing the source list or compression settings.
- Open the ZIP and compare representative extracted files with the sources.
Examples you can test
Load an example, compare the result with the expected output, then replace it with your own input.
Package a project handoff
Example input
assets/ folder and README.pdf; balanced compression
Expected output
One ZIP preserving the assets subfolder and root document.
Relative folder paths stay intact in supported browsers.
Validation checklist
- Confirm source file count and total size.
- Review visible archive paths for sensitive names.
- Confirm that the downloaded ZIP is explicitly reported as verified.
- Open the unencrypted ZIP and test representative extracted files.
- Keep sources until the archive is verified.