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Underpressured

Compress, resize, and convert images in batches on Mac

Mac
Open Source
GitHub
Photo editing
Visit WebsiteSee on Product HuntGithub ⧉App Store ⧉

Hunted bya-deva-dev

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+.

Top comment

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.

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About Underpressured on Product Hunt

“Compress, resize, and convert images in batches on Mac”

Underpressured was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #261 on the daily leaderboard. 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+.

Underpressured was featured in Mac (103.9k followers), Open Source (69.1k followers), GitHub (41.5k followers) and Photo editing (1.5k followers) on Product Hunt. Together, these topics include over 65.6k products, making this a competitive space to launch in.

Who hunted Underpressured?

Underpressured was hunted by a-dev. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.

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