Patchy is a free Photoshop alternative for Windows, macOS, and Linux, offering layered PSD editing, photo retouching, filters, and Photoshop-compatible filter plug-ins on Windows. A browser version is available as well.

I have been kicking the tires on Patchy for a bit now, and as an old-school Photoshop user, I feel right at home. The layout and workflow are familiar, the tools feel comfortable, and I have not encountered any bugs of note during my testing. There is a substantial amount of functionality here, and so far, I like what I see.... a LOT!

A Familiar Photoshop Alternative

Patchy covers the everyday jobs you would expect, including cropping, resizing, selections, painting, cloning, and healing. It also offers adjustment layers, masks, editable text, vector shapes, and Smart Objects. Those features let you build and revise an image without permanently baking every change into its pixels.

Photoshop users will particularly appreciate the attention to layered PSD and PSB files compatibility. Keeping a document's working parts editable is considerably more useful than simply opening a flattened picture of the finished result and working with my older PSD files from Photoshop with Patchy was seamless. That's a huge plus.

The feature list goes beyond photo editing, too. Palette-based painting, seamless textures, sprite sheets, and animation support give pixel artists and game developers reasons to take a look. You do not need to use all of that to appreciate having room to grow.

Useful Filters, Including High Pass Sharpening

The filters are one of my favorite parts. Patchy includes a very nice High Pass filter, which happens to be my favorite tricky for sharpening a photo in Photoshop.

If you are unfamiliar with the technique, duplicate your photo layer and apply High Pass to the duplicate. Adjust the radius until the edges appear without bringing out too much fine texture, then set that layer's blend mode to Overlay or Soft Light. Reduce its opacity until the sharpening looks natural, and judge the result at 100% zoom. You can toggle the layer off and on to compare.

You can thank me later for that one.

The desktop edition also includes a G'MIC library with nearly 400 filters and live previews, alongside its built-in Filter Gallery. There is plenty to experiment with before downloading anything extra.

Classic Photoshop Plug-in Support

On Windows, Patchy supports classic 32-bit and 64-bit Photoshop .8bf filter plug-ins. If you have an old collection gathering digital dust, that alone could make this interesting.

For additional filters, Harry's Filters offers 69 free effects, while Mehdi Plugins offers a selection of free Photoshop-compatible filters. These are places to find candidates, rather than a guarantee that every filter will work in Patchy.

To install them, choose Plugins > Open Plug-ins Folder, copy the .8bf files and any supporting files into that folder, then select Plugins > Rescan Plug-in Folders. Available filters appear under Plugins > Legacy Photoshop Plug-ins.

This support specifically covers classic filter plug-ins. It does not mean every modern Photoshop extension is compatible, and these external filters are Windows-only.

AI Integration That Works Differently

Patchy's optional AI integration takes a different approach from putting a prompt box inside an editor. It lets a compatible outside assistant, such as Claude Code, Codex, or Cursor, operate Patchy's editing tools through a local MCP connector.

Think of it as giving your assistant access to the workbench. You could ask it to apply a consistent crop, border, and watermark to a folder of screenshots, export images at several sizes, or make an edit on a separate layer. The assistant chooses the operations, Patchy performs them, and previews let the assistant inspect the results.

That makes it useful for repeatable jobs and edits you can describe more easily than you can execute. It also lets you choose your assistant rather than tying the editor to one AI provider.

There is some setup involved. You need a compatible client with local MCP support, and any AI subscription or usage charges come from that provider. Patchy does not include its own generative image model, and its normal editing tools work without connecting an assistant. Although the connector runs locally, previews and tool results may be processed by your assistant's hosted model.

Geek Verdict

Patchy has made an excellent first impression. It gives me the familiar working environment I like, a useful selection of tools, and enough depth to make it worth exploring beyond a quick test drive.

I would still try copies of your important PSDs and your favorite plug-ins before moving an established workflow over though. I had no issues, but compatibility is something you verify with your own files.

That siad, if if you want a free image editor that feels comfortable to an old Photoshop user, Patchy deserves a very serious look.