Emil Pedersen


App icon
Screenshot of the main view of the app, with Today date, Converter, and a wheel to scroll through dates Screenshot of the date details view, with day name and other date components

French Republican Calendar

This project is an iOS/watchOS/web Swift app to convert between the Gregorian Calendar and the French Republican Calendar from 1793


The app is 100% written in Swift, and is open source! (Split in 3 repositories: core converter, iOS/watchOS app, web app)

The web app uses Swift WebAssembly and Tokamak to run in the browser.

View App Store Page | Official Website (French) | Online Converter | Core GitHub Repository

App icon
Screenshot of the main view of the app, with the Informations, next class, and recent grades visible Screenshot of the daily recap view, with the time you start the next day, the subjects you have, the homework to do, the recent changes in subject averages, and the class content to revise Screenshot of the main view of the app in dark mode, scrolled down to see the upcoming exams, a graph of the subject average changes, and the messages from teachers

Orbe pour Pronote

This project is an iOS/watchOS/macOS Swift app to view school information. Most high schools in France use Pronote to handle and share school information with students and parents. The official app for Pronote was very limited, therefore I made this app.


The app is written in Swift, the backend is written in JavaScript (NodeJS) using Puppeteer, and with a Python watchdog.
The development began in October 2019, it was available on the App Store between 2 September 2020 (version 1.0) and 20 April 2021 (version 4.5).
It has been updated 18 times on iOS and 14 times on macOS, and the monorepo has 1246 commits.

Screenshot of SnowHex on macOS, with syntax highlighting for a GIF image, with two auxiliary windows: one with a preview of the image and one to change the color of a palette element Screenshot of SnowHex, with the Find feature to find a sequence of bytes in a GIF file, and another window to edit the delay between images for the animated GIF


This project is a Java desktop hex file editor, with syntax highlighting.


The app is written in Java and is open source. You can make your own TokenMaker subclass if you want to support a new file format.

View Product Page | GitHub Repository

Website Description

This website is generated using Publish, using the same CSS as my, older, ElementalCube website. It is then deployed automatically using Cloudflare Pages.