Black Out

Hide sensitive parts of an image before you share it

#2 Product of the DayDecember 11, 2017

Black Out is a macOS app that lets you quickly hide sensitive parts of an image. This can be useful when you want to post a screenshot or photo on the web that contains some information you don't want revealed.

  • Jessica Logan
    Jessica LoganLoves science, tech, travel, books

    Incredibly easy. Just draw the box, export or share, and you're done.



    I'm fairly new to doing graphics, and usually use Preview for this. It works but Black Out is much easier and no metadata worries. Thanks! I'll be recommending to friends.

    Jessica Logan has used this product for one day.
    Comments (0)
  • Anselm Hannemann
    Anselm HannemannCreator of Ethics.

    Itโ€™s a very simple app that does exactly what it should and does it very well


    There currently are no settings for the export which is not a big deal but may leave room for later improvements.

    Black out seems to be a great app that does simply what it promises: An easy way to black out content on images and save / share the images afterwards. The interface is clean, and easy to use and the most important things are always visible and built-in. I will continue to use it in future and it saves me doing the same task in more complex, slow to load image editors.

    Anselm Hannemann has used this product for one day.
    Comments (1)
I often post screenshots on Twitter and sometimes I need to hide some private information. I could fire up Pixelmator or Photoshop, but it feels overkill, and they don't remove metadata. This app is a single-purpose app to make the task super easy. You can read more about the development process in my blog post. Answers to some common questions: Can you support blurring and pixelation? Blurring and pixelation are intentionally not supported as they can sometimes be reversed. The only reliable way to redact something is to put a black box over it. I can already do this in the Preview app! You can do this in any graphics app. The point of this app is to make it super easy to do. Most graphics apps, like Preview, Pixelmator, and Photoshop, preserve metadata, which means you could accidentally leak information like the capture location. Black Out strips out all metadata. Does it support PDF? You can open a PDF document, but you have to export it as a PNG image. Itโ€™s almost impossible to reliably export redacted PDFs. Black Out is my 5th macOS app this year. Previous ones are Battery Indicator, Touch Bar Simulator, Lungo, and HEIC Converter. I started learning macOS app development and Swift at the beginning of the year. My goal is to do 6 macOS apps in 2017 to get better at Swift and learn to ship. I plan to do a beta launch of my 6th app, Shareful, very soon.
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simple and fast :)
Similar to @soffes' Redacted which I use (albeit infrequently) and love. LOL @ the Mr. Bean example in the image. ๐Ÿ˜‚
Great job !! ๐Ÿ˜Š