File Folder Compressor — Compress a Folder to ZIP Online Free
Compress a whole folder of files into a single ZIP at maximum compression in your browser. Keeps folder structure — free, private, no upload, no sign-up.
Drop files or a folder here, or click to browse
Files are processed in your browser — nothing is uploaded.
What is a file folder compressor?
What is it
A file folder compressor bundles an entire folder of files into a single ZIP archive at maximum compression. filecompressor.app does this in your browser, preserving the folder structure so your organization stays intact.
It is perfect for backing up projects, sharing a set of files, or fitting a folder under an upload limit — all privately, with no sign-up.
How to compress a folder
How to use
Compressing a folder is simple and private:
- 1
Select a folder or drop multiple files into the dropzone above.
- 2
The compressor archives everything into a single ZIP at maximum DEFLATE level 9, preserving subfolders and paths.
- 3
Click Download to save the ZIP. Extract it anytime to get your original folder back, unchanged.
Why use this folder compressor?
Why use it
Bundles a whole folder into one max-compression ZIP.
Preserves subfolders and file paths inside the archive.
100% private — files are processed in your browser and never uploaded.
Free with no sign-up, no watermarks, and no limits.
Great for backups, sharing, and fitting folders under upload limits.
FAQ
Common questions about this compression tool.
Frequently Asked Questions
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