Max File Size, Number of Files, Line Length (V3, V4)

BC3 logo BC version 3 or later

Folder Compare

Beyond Compare 64-bit: The number of files will scale with memory available.
Beyond Compare 32-bit on 64-bit Windows: 5 million files on each side.
32-bit Windows: 2.5 million files on each side.

Memory use:
20 million files each side, Windows: 7.5 GB memory.
1 million files each side, Linux: 1 GB memory.
1 million files each side, macOS: 600 MB memory.

Zip Files

BC 3.1 and newer support Zip64 for files over 4 GB in size.  Versions prior to 3.1 are limited to 65,535 files, with no file larger than 2 GB, and a maximum Zip file size of 2 GB.

Tar Files

Tar archives over 4 GB in size are supported.  The maximum size for individual files within a .tar archive is 2 GB.

Filename Filters

Filename filters are limited to a maximum of 65,535 characters in the Folder Compare.

Data Compare

The characters per line limit is 65,536 and is not configurable.

Text Compare

The max file size supported is 500 MB.

The default characters per line limit is 4096, configurable limit is 65,536 characters.

Hex Compare

The max file size supported is 700 MB.