Alternatives to PTLens for all platforms with any license

GIMP

GIMP is a free program for such photo retouching, image composition and image authoring. Essentially it's the closest thing to Photoshop you can get for free.

Free Open Source Mac Windows Linux BSD Snapcraft ... FLATHUB PortableApps.com Haiku AmigaOS
Customizable Layer manipulation Support for Layers Photo effects ... Ad-free Animation DRM Free Advanced crop and layer management Batch image manipulation Blur Filter Built-in Color picker Color correction Color to Alpha Cross-platform Editing photos Extensible by Plugins/Extensions FOSS High-resolution images Image Editing Image Masking Keyframe animation Lossless Cropping Retouch photos Portable Open PSD files Scalable Scripting support Symmetry brush Add a feature

3721 Like
Glimpse Image Editor

Glimpse is an open source image editor based on the GNU Image Manipulation Program. The goal is to experiment with new ideas and expand the use of free software.

Free Open Source Windows Linux
Image Editing Retouch photos Add a feature

12 Like
showFoto

You can use it to view your photographs and improve them. Showfoto is the standalone image editor of the digiKam project.

Free Open Source Mac Windows Linux KDE
Image browser Image Editing Add a feature

13 Like
Ultimate Paint

Ultimate Paint is a full-featured 32-bit Windows graphics program for image creation, viewing and manipulation. UP supports JPEG, GIF, PNG, BMP, PCX, AVI (reading...
- Discontinued
  The program is no longer updated. Last version, 2.88, released on 6 october 2005, can be still downloaded from the official website.
Freemium Windows
Image browser Image Editing Photo effects Add a feature

6 Like
WidsMob Retoucher

WidsMob Retoucher is an excellent photo retouching program, which is able to reduce image noise, portrait retoucher, film pack, adjust effects, fish eye effects...

Commercial $ $ $ Mac
Remove Noise Retouch photos Add a feature

2 Like
ShiftN

ShiftN is an intelligent tool capable of analyzing photos and fixing the line distortion (line convergence) effect automatically or with minimal user’s input. Batch...

Free Windows
Image Editing Add a feature

5 Like
GimpLensfun

GimpLensfun is a Gimp plugin to correct lens distortion using the lensfun library and database.

Free Open Source Mac Windows Linux GIMP
Image Processing Add a feature

1 Like
Home Photo Studio

Home Photo Studio is powerful and easy-to-use photo editing software compatible with all Windows systems.

Freemium $ $ $ Windows
Image Editing Photo effects Add a feature

2 Like
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Photopainter

Photopainter is both a natural-media painting software and an image processing system at the same time. You can not only use it to retouch your photo, but also...
- Discontinued
  The program is no longer updated. Last version, 1.5.2.5, released in December 2007, can be still downloaded from the official website.
Commercial Windows
Image Editing Add a feature

2 Like
RealWorld Photos

RealWorld Photos is an free portable photo editor for Windows. Retouch photographs and batch process images in an easy-to-use editor. Perform lossless retouching...

Commercial Windows
Retouch photos Portable Add a feature

1 Like