ZIP Compressor
Combine multiple files into a single .zip archive, built and downloaded entirely inside your browser.
🔒 Files are processed locally in your browser whenever possible — nothing is uploaded to our servers.
Drop files or a folder here
Add as many as you like — you can remove any of them before compressing.
About this tool
Combines any files you add — including whole folders — into a single .zip archive, built entirely in your browser.
How to use it
- Add files or a folder, by dropping them or using the buttons below.
- Review and remove any you don't want.
- Click Compress to build and download the ZIP.
FAQ
Are my files uploaded anywhere?
No — the ZIP archive is built entirely inside your browser tab; your files are never sent to a server.
Can I add a whole folder?
Yes — use "Choose a folder" (or drag a folder onto the drop area in a browser that supports it) and the folder's structure is preserved inside the resulting ZIP.
How many files can I add?
As many as your browser's available memory allows — there's no arbitrary tool-imposed file-count limit, but very large collections will take longer and use more memory.
Can I remove a file before compressing?
Yes — remove individual files, or clear the whole list, any time before you click Compress.
From the blog
- The Complete Encyclopedia of File Compression: How ZIP, 7z, RAR, gzip and Zstandard Work
Everything about file compression in one place: how lossless compression works, the key techniques from Huffman to Zstandard, the history of ZIP, RAR, 7z and gzip, what each format is used for, open- and closed-source archivers, security pitfalls, and a real benchmark.
Don't see the tool you need?
Goeroe Digital builds custom calculators, generators, and business tools on request.
Request a Custom ToolThis is a free tool provided by Goeroe Digital. All results, generated files, and figures are estimates or drafts for general informational use only. Goeroe Digital accepts no responsibility or liability for any output, outcome, loss, or decision arising from the use of these free tools — always review the results yourself before relying on them.