Zettlr © Hendrik Erz 2017–2026

Developed with between Sweden and Germany

Blog

News, announcements, and other tips and tricks around the app.


Selling Trust, Part 3

Selling Trust, Part 3

  • January 28, 2026
  • Uncategorized

Five years ago, I wrote about an issue I described with "Selling Trust" — the tendency of companies to provide code signing certificates at increasingly high prices. Zettlr uses code signing so that the many users of the app who use Windows can install and use it without issues. However, Microsoft makes it increasingly difficult to provide safe and clean software to users on Windows. It is time for the third time of describing why this is dangerous for users, developers, and Open Source at large.


Zettlr 4.0 Released

Zettlr 4.0 Released

  • December 26, 2025
  • Announcements, Releases

Today we have reason to celebrate: First, Zettlr turns eight years old. Second, we are proud to release Zettlr 4.0 — our biggest update ever. Read more to learn all there is about a fully revamped app experience, documentation, and all the new features we have to offer.


An APT Repository for Zettlr

An APT Repository for Zettlr

  • April 26, 2025
  • Announcements

We are excited to announce that Zettlr now features its own, official APT repository to make installing Zettlr on Debian-based operating systems much easier than before. Read more on how to use it yourself in our new post.


Zettlr Switches Code Sign Certificate: Important Information for Windows Users

In the coming weeks, there will be three updates for Zettlr that Windows users must pay special attention to. The reason is that we must exchange the existing code signing certificate. Please carefully read this announcement.


Happy Birthday, Zettlr!

Happy Birthday, Zettlr!

  • December 26, 2024
  • Announcements

2024 is coming to an end, and you know what this means: Zettlr turns a year older! Read more on Zettlr's achievements in 2024, what our plans are for 2025, and what else there is in stock. This year, we are particularly proud to announce the re-opening of our user forum, and our first ever user-survey! Happy seventh birthday, Zettlr!


Introducing the Zettlr Steering Committee

Introducing the Zettlr Steering Committee

  • July 02, 2024
  • Announcements

We are excited to announce the inception of the first governing body to ensure a health future for Zettlr: The Zettlr Steering Committee. The purpose of the steering committee is to better plan and guide the development process which will result in a more bug-free experience. In this blog post, maintainer Hendrik Erz answers some general questions regarding the committee.


Postmortem light: Zettlr and Electron Fuses

Postmortem light: Zettlr and Electron Fuses

  • February 24, 2024
  • Announcements, Uncategorized

On February 6, 2024, a security researcher alerted us of a potential security issue with Zettlr version 3.0.3 and below. On February 7, we fixed this very issue with the release of Zettlr version 3.0.4, shortly followed by 3.0.5. In this postmortem, we want to inform you about what even happened, whether you have been affected, and what we have learned so far.


Happy Birthday, Zettlr!

Happy Birthday, Zettlr!

  • December 26, 2023
  • Announcements

Another year has passed, and today, Zettlr turns 6. This is quite an impressive age, and the year 2023 has seen a huge amount of improvements: We have released Zettlr 3.0, surpassed 1 million downloads, and caught up with the competition in terms of functionality. Read all on the achievements of 2023, and all our plans for 2024, in this year's birthday post!


Zettlr 3.0.0 Released

Zettlr 3.0.0 Released

  • September 01, 2023
  • Announcements, Releases

After 14 months of intensive development and testing, we are proud to present you the biggest update in the history of Zettlr. Read everything you need to know about this all-new version!


Zettlr 3.0 Public Beta

Zettlr 3.0 Public Beta

  • January 09, 2023
  • Announcements, Releases

After half a year, it is time for an update of Zettlr. We've been working hard, and are looking forward to a great beta phase, before we can then finally release Zettlr 3.0 stable!