FAQ
Answers for common unzipzapp questions.
These answers are written for users first. Structured data is included only for answers that also appear visibly on this page.
Privacy and local processing
Are my files uploaded to unzipzapp.com?
No. The core web workflow reads, sorts, merges, splits, and rebuilds files locally in your browser. unzipzapp.com serves the app bundle; your source files are not uploaded for processing.
What does unzipzapp store if I sign in?
Optional account features can store metadata such as source archive name, output name, page count, file count, output size, and quality setting. File contents are not stored through the account workflow.
Supported files
What file types does unzipzapp support?
The web app accepts ZIP, RAR, CBR, 7z, PDF, common image formats, HEIC and HEIF where browser conversion is available, DOCX, Markdown, and TXT.
What happens with encrypted or corrupt archives?
Encrypted or corrupt archives may fail during listing or extraction. The app should show an error rather than uploading the file elsewhere.
Exports and grouping
What export options are available?
You can build one combined PDF, split PDFs by group, combined PDF plus sorted ZIP, split PDFs plus sorted ZIP, a grouped ZIP, or a flat cleaned ZIP.
How does automatic grouping work?
unzipzapp reads filenames, detects prefixes, and groups related files together. For drawing packages, prefixes such as A, S, M, and E can map to common discipline groups.
Can I reorder or exclude files before export?
Yes. Use the Organise section and Custom order controls to rearrange files, include or exclude items, and adjust the build order before exporting.
Workspace folders
Does folder save work in every browser?
Direct folder save and workspace archive features require browser support for the File System Access API, mainly Chrome and Edge. Other browsers can still download exports.
What is auto-archive?
When workspace folders are enabled, unzipzapp can copy the source package into an Archive folder after a build so the original download is easier to file later.
Chrome extension
What does the Chrome extension do?
The extension detects supported completed downloads, shows a notification, stores a short-lived local handoff state, and opens or focuses unzipzapp.
Limits and troubleshooting
Why can large packages be slow?
The web app works in the browser, so very large archives are bounded by browser memory and device CPU. Use the desktop app for larger local jobs when browser memory is not enough.
Why does RAR support need extra setup on desktop?
The desktop Python app uses local archive tools for some formats. On Windows, install WinRAR or UnRAR on PATH; on macOS or Linux, install the matching unrar or 7z package.