WORKLAZY TOOLS

Folder and ZIP Compare

Compare file contents in two folders or ZIP archives, then inspect selected pairs with existing tools.

Use this tool directly in your browser without installing software or signing in.

How to compare

File contents versus detailed comparison

File-content comparison reads the actual contents to completion. Files can look the same while storing different data. Detailed comparison uses the existing document, Excel, PDF, image and text tools without changing the file-content result.

Excel details compare only the selected sheets and headers by position. Other sheets are excluded. For images, check overlapping, added and removed coverage together with the working resolution.

Limits and supported inputs

The entire job allows up to 50,000 entries, 1 GiB of expanded content and 256 MiB per entry. ZIP directory reads also have a 2 MiB limit. Detailed comparison allows 4 MiB per text file or 16 MiB per other file, plus each tool’s own limits.

Empty folders, permissions and filesystem metadata are not fully compared. Encrypted ZIP entries and symbolic links are unsupported. Word and HWP comparisons require matching document families.

Rename candidates

Only byte-verified identical contents form rename-candidate groups. Duplicate contents are not arbitrarily paired. No filesystem names or locations are changed. Additional rereads are bounded to 3 GiB and 10,000 byte verifications.

Frequently asked questions

Can comparison change original files?

No. It is read-only: files are not copied, edited, deleted, synchronized or renamed.

Does cancellation discard completed results?

Completed results remain. Unfinished entries are labeled canceled or unknown. Results from an older selection cannot replace a new job.

Why can bytes differ when detailed comparison shows no changes?

Stored metadata or content outside the selected tool’s scope can differ. Check the detailed tool’s scope and warnings.