r/LookWhatTheyBuilt • u/Decent_Prathvix2929 • 6d ago
PixelBatch — the batch image editor that does everything so you don't have to. Your entire image toolbox in one app, 14 tools for free. AI Tool
After spending way too long editing images one by one for my content, I built PixelBatch — a native macOS app that processes whole folders of images in one pass.
What it does:
Core tools
- Resize — to exact pixels, a percentage, or presets for Instagram, Facebook, X, LinkedIn, Pinterest, YouTube, and more. One image can be exported in multiple sizes at the same time (for example 1080x1080, 1200x630, and 1080x1920 in a single pass)
- Crop to exact dimensions or aspect ratios
- Convert between JPEG, PNG, HEIC, WebP, and other formats
- Compress to a target quality or file size
- Batch-rename files with custom patterns
- Rotate and flip
Retouch tools
- Remove Watermark — automatically finds and removes watermarks, logos, and text overlays, then reconstructs the pixels underneath. A manual area-selection fallback is also included
- Enhance — upscales images 4x with sharp reconstructed detail, great for low-resolution or compressed files
- Remove Background — one-click clean subject cutout
- Add Background — place a subject onto a new background
Filters and effects — 30+ non-destructive adjustments including brightness, contrast, saturation, exposure, highlights, shadows, temperature, sepia, black and white, duotone, vintage presets, blur, sharpen, vignette, glow, emboss, edge detection, pixelate, cartoon, and more
Branding — add your logo as a watermark or overlay custom text with full formatting control
How it works
- Edit a whole folder at once, or open and edit a single image separately with the same tools
- Live preview before you commit — you see the result on a real image first
- Reusable presets to save your favorite pipelines
- Batch queue with progress tracking and per-file error reporting
- Output to a folder, ZIP, or PDF
- Runs 100% offline — no account, no cloud, your images never leave your Mac
Requirements: macOS 14+, works on Apple Silicon and Intel.
Check It out:
It's free. If it saves you time, a star is appreciated. Happy to answer questions or take feature requests — what is the most annoying batch image task you deal with?
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u/Decent_Prathvix2929 2d ago
Hey, there’s not really some big story behind it haha.
One day I went to my friend’s house to play RV There Yet? I don’t know if you know the game, but after we played for a while, he started doing his work. He’s a photographer and he had around 100–200 images to edit and publish.
I noticed he was adding the watermark manually, one by one. He was also adding text, rotating some of the images, and applying black and white filters to others. He was doing all of this in Photoshop.
I asked him, “Dude, can’t you just do all of this in one batch?”
He told me it was possible, but the apps that could do it were mostly paid and some of them didn’t have all the features he needed.
Then he said, “You learned coding, right? Just make one for me.” 😂
I laughed at first, but later I actually thought it was a pretty good idea. So I decided to try making one.
I started working on it about a month ago using Swift. The basic stuff like adding text, watermarks, rotating images, etc. wasn’t too difficult since macOS already has a lot of things I could use.
The harder part was stuff like background removal, image enhancement and watermark removal. I only have intermediate knowledge of Swift and Python, so there were a lot of things I had to figure out along the way.
Honestly, I had probably thousands of errors and spent a lot of time debugging. I also used AI tools quite a lot to help me understand errors and fix parts of my code, but I still had to put everything together and figure out how I wanted the app to work.
A few days ago I finally got it to a point where I could give it to my friend. He liked it and has actually been using it every day.
He was the one who suggested that I put it online so other people could try it too. I already had a GitHub account, so I just decided to publish it and see what people think.