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Underpressured
Compress, resize, and convert images in batches on Mac
1 follower
Compress, resize, and convert images in batches on Mac
1 follower
Underpressured is a free, open-source Mac app for batch image compression. Save your format, quality, and resize settings as a preset, then drop in images or a folder. Export JPEG or PNG copies while keeping your originals and subfolders. All image processing happens on your Mac. Requires Apple Silicon and macOS 27+.
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Hi Product Hunt! I made Underpressured, a free, open-source Mac app for compressing, resizing, and converting images in batches.
I built it because I couldn't find a simple, efficient app that did what I needed without lots of setup and preparation. Sometimes I just want to get a batch done. I only use two presets, and that's enough for me. My favorite part is that the app remembers the last preset I used. I open it, drop in a folder, wait a bit, and the images are ready.
You can save the output format, quality, and resize limit as a preset and reuse it for the next batch. Choose an export folder, then drop in your images. Exported copies keep the subfolder structure, and the originals stay where they are.
The app shows each file's resulting size and the total savings. You can preview results with Quick Look. All image processing happens on your Mac, and the app collects no analytics.
It reads formats including HEIC and WebP and exports JPEG or PNG. It requires Apple Silicon and macOS 27 or later. You can download app from Github or Mac App Store.
If you try a batch, I'd like to hear whether it was clear how to choose a preset and save copies. Which output formats does your workflow need? I'll try to add them in future releases.