Dark Mode Google Docs
from $1.99Switches Google Docs to a dark theme in one click. Set how dark the page gets and choose the background and accent colors that are easiest on your eyes.
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Since 2017
Captain Software
We build easy-to-use software that takes routine tasks off your hands, so more of the working day goes to the work itself.
About us
Simple software, less routine
We create straightforward web applications and browser extensions that help people get through everyday tasks faster and keep their attention on what matters.
- Each product does one job well, with no setup and nothing new to learn.
- Works on any computer: open it in the browser and start, nothing heavy to install.
- Clear monthly or yearly plans and a 20-day money-back guarantee.
Our products
Tools that just work
Web apps and browser extensions for people who would rather spend their time on the work than on the tools.
Python Playground
from $4.99Runs Python right in a browser popup, with syntax highlighting, code completion and popular libraries preloaded. Keep the scripts you reuse in your own library.
Learn moreHEIC to JPG Converter
from $3Converts iPhone HEIC photos to JPG in Chrome. Drop in one file or a whole batch: images are processed on your device and come out without watermarks.
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