Over the years I have come across some useful open source software.
Here is a brief list so you can take advantage of them for yourself.
Ditto is an extension to the Windows Clipboard. You copy something to the Clipboard and Ditto takes what you copied and stores it in a database to retrieve at a later time.
This is one of my most used and favorite programs that I have ever found.
Merge, split, extract pages, rotate and mix your PDF files. Available for Windows, Mac and Linux. Free and open source since 2006.
There are both free and paid versions, but I still get a lot of use from the basic one.
Advanced Renamer is a program for renaming multiple files and folders at once. By configuring renaming methods the names can be manipulated in various ways.
Very helpful tool that I only use occasionally but I am very glad that I have it in my toolbox.
XnView is an efficient image viewer, browser and converter for Windows.
This software is really simple to use and totally free for personal use. It supports more than 500 image formats! No Adware, No Spyware.
I normally use this when I need to do batch conversion work on images.
The Free & Open Source Image Editor
I use this all the time for image editing and it is very powerful.
WinSCP is a popular SFTP client and FTP client for Microsoft Windows! Copy file between a local computer and remote servers using FTP, FTPS, SCP, SFTP, WebDAV or S3 file transfer protocols.
Helpful tool when I need to move files between computers or home automation raspberry pi.
Dia is a program to draw structured diagrams. [flowcharts]
I use this occasionally when I need to do a flowchart that is a little too complicated for a quick powerpoint file.
A barcode encoding library supporting over 50 symbologies.
I use this to generate barcodes that send emails and track inventory.
Personal assistant to automatically manage your files
I have several profiles set up to sort and rename common file types. Very helpful to reduce tedious tasks once you get it set up.
With this free Windows automation tool, you can easily record and repeat actions.
I use this for quick automation of repetitive tasks when I do not want to set up a full macro for a single use case.
Let me know of your favorites!