only youtub

Use mouse without clicking - by moving it only.

Store text documents including attachments within a flexible tree structure in only one single file.

Store text documents including attachments within a flexible tree structure in only one single file.

Stream to multiple services using only a single connection with one of provided restreaming servers.

Store text documents including attachments within a flexible tree structure in only one single file.

Unlock read-only PowerPoint presentations with just one click.

Put you profit only on mind.

Copy only new or modified files, copy files by specific name or type, use more file copy options.

Open various media files with only one tiny program.

1by1 is a lightweight, fast and handy audio player which is not only small.