Free Photography Software

I started this thread a few years ago because it felt like every week a different magazine was giving away paid software. This trend has slowed and I don't scour the magazines like I used to.

Feel free to post as needed and I'll try to update when the mood strikes me. Like a real artist!

*PAID SOFTWARE FOR FREE*
Luminar 4 is free again: https://forums.redflagdeals.com/luminar-4-photo-editor-free-2511325/
Direct link: https://skylum.com/chip-luminar4

Skylum Luminar 3
Various (updated links as it changes)
Luminar helps you organize and edit your photos quickly and effortlessly. Enjoy using advanced filters, a smart rating system, and one-click Luminar Looks to speed up your photo editing workflow.
DL:https://skylum.com/pp-luminar (Expires unknown)

HDR Projects 4 Professional free for Windows and Mac
Thanks @AbhayP99048 for posting this!
Anyone who has ever seen HDR images will often find normal photos just boring. With HDR projects 4 professional you, like an artist, can very sensitively create very special lighting worlds that are not possible with "normal" photography or image processing.
DL:https://reg.franzis.de/reg/HPW-22054000/999999999/0/502/2.0/0/en/

Batch Picture Resizer
Digital Camera World April 2020
http://bit.ly/dcresizer
Batch Picture Resizer does much more than the name implies. Automating routine tasks of image processing, it allows performing seamless conversion between multiple image formats, embedding logos or watermarks in multiple images, as well as resizing pictures in highest quality possible.

Skylum Aurora HDR 2018
https://skylum.com/l/ap-aurora

Focus Projects 4
https://www.projects-software.com/dc-focus
Digital Camera World - October 2020
Create textbook macros, razor-sharp and with details like you’ve never seen before. With the new technologies of FOCUS projects 4 professional you can create state-of-the-art macro photos which have a fascinating depth of focus and bring extraordinary details to light.

*PAID SOFTWARE DISCOUNT*

Adobe Creative Cloud (Lightroom, Photoshop)
7 Day Trial: https://www.adobe.com/sea/creativecloud/start-with-free-creativecloud.html
30 Day Trial (free month codes):

Capture One Express
Free for Sony & Fuji Shooters, they also discount their Pro version often
DL: https://www.captureone.com/en/download/express-sony

Skylum Luminar
Luminar is an advanced standalone photo editing program. It's packed with all the features you need to take an image from beginning to end.
DL: https://skylum.com/l/luminar-checkout

*FREE SOFTWARE*
GIMP
https://www.gimp.org/
Open source Photoshop alternative

Raw Therapee
RawTherapee is a free, cross-platform raw image processing program.
DL: https://rawtherapee.com/

Darktable
DL: https://www.darktable.org/
Open Source Adobe Lightroom Alternative

Picolay
http://www.picolay.de/
Focus stacking, image processing, 3D, and more...

Photopea
https://www.photopea.com/
Free online photo editor supporting PSD, XCF, Sketch, XD and CDR formats. (Adobe Photoshop, GIMP, Sketch App, Adobe XD and CorelDRAW).Create a new image or open existing files from your computer. Save your work as PSD (File - Save as PSD) or as JPG / PNG / SVG (File - Export).

*"FREE"*
Adobe Photoshop CS2
Yes, this is a full and legit copy of Photoshop CS2. A few years ago, Adobe got rid of the activation server for older versions of it's Creative Suite and released versions of it's software that would activate without connecting to the (now offline) servers.
https://www.techspot.com/downloads/3689-adobe-photoshop-cs2.html

Google Nik Collection*
*DxO purchased and re-released Nik as paid software, this is the previously free version
Nik Collection 2 by DxO is a powerful suite of 7 Adobe Photoshop & Lightroom plugins offering an impressive range of innovative tools for total control.
WIN DL: http://dl.google.com/edgedl/photos/nikcollection-full-1.2.11.exe
MAC DL: http://dl.google.com/edgedl/photos/nikcollection-full-1.2.11.dmg

*PAST FREEBIES*
Corel AfterShot 3
ON1 Effects 2019
DXO Optics Pro 11
Filter Forge 7
PhotoLemur 3
Air Magic