1. Gimp – Gimp is one of the best Photoshop Alternatives that can be downloaded free of cost. Gimp comes with tons of image editing and enhancing options. You can find almost every kind of image editing option in this software. Supports multiple operating system such as – Windows, Mac, Sun OpenSolaris, FreeBSD and Linux.
2. Photoscape – Photoscape is a powerful photo editing software which comes with many useful features which can help you editing and enhancing your photographs. You can download full version of Photoscape free of cost.
3. Free Zoner Photo Studio -Free Zoner Photo Studio is a free version of award winning photo editing software- Zoner Photo Studio which is considered as one of the best Photoshop alternatives. This software comes with many useful photo editing features.
4. Photobrush – Photobrush is one of the most popular image editing apps that can be used as a Photoshop alternative. Photobrush comes with simple and easy to use interface that can help users improving and editing their photos. You can use this software by downloading free trial version of Photobrush.
5. Coral Paintshop Pro – Professional photo enhancing and editing software that can be used as Photoshop alternative. Comes with many unique features that you cannot find in other image editing apps. You can use Coral Paintshop Pro by installing free trail version of the software.
6. Photo Editor – Simple but powerful photo editing application that can be installed on your Windows PC free of cost.
7. ACDsee Pro – One of the best Photoshop alternatives for professional photographers. This is a paid software but if you want to check this software, I would suggest you to use free trial version of the software.
8. Photo Pos Pro -Photo Pos Pro is one of the best easy to use image editing software which can be downloaded free of cost. Photo Pos Pro comes with all of necessary editing options.
9. Paint.Net – Paint.net is considered as the best alternative to Coral Paint Shop Pro because this software comes with all of useful photo editing features which can be used totally free.
10. Picasa – Although Picasa cannot be used as a Photoshop alternative but it has many useful features that you cannot find in other image viewing applications. One of the best image viewer by Google which also allows users to edit & enhance their photographs with some special effects.