All organizations · GSoC 2026 · End user applications, Security

Joplin

The secure note taking application

Joplin is a note-taking app designed with strong security and privacy in mind. It features end-to-end encryption (E2EE), ensuring the notes remain protected during synchronization. Users can store notes locally or sync them via trusted services like Nextcloud, Dropbox, or self-hosted servers, retaining full data ownership. Additionally Joplin can manage a large number of notes that can be organised using notebooks or tags, thus making it suitable to manage a knowledge base. The notes can be searched using simple or advanced queries. The application can be customised using plugins and themes, and you can also easily create your own. It is available for Windows, Linux, macOS, Android and iOS.

javascript
react
typescript
electron
React-Native

security
search
synchronisation
note-taking
AI/ML

Project ideas

8 ideas on its 2026 ideas page; of the 8 that state a difficulty: 3 medium, 5 hard. Sizes: 3 medium, 5 large. 7 mentors named.

AI-Generated note graphs large hard
AI-based categorisation large hard
Chat with your note collection using AI large medium
Automatically label images using AI medium medium
Strengthen the security of the plugin ecosystem large hard
Support for encrypted notes and notebooks medium medium
LAN Sync medium hard
Automatic conflict resolution large hard

Read the ideas page. Ideas are for scope reference; never copy one into a proposal.

History

In GSoC since 2020, 5 years. Projects per year: '20: 2, '21: 5, '22: 6, '24: 4, '26: 5.

On GitHub

19 repositories pushed to in the last year. Main languages: TypeScript (10), JavaScript (3).

Links and channels

Website: https://github.com/laurent22/joplin
Ideas page: https://github.com/joplin/gsoc/blob/master/ideas.md
Contributor guide: https://github.com/joplin/gsoc/?tab=readme-ov-file#google-summer-of-code-2025
Source code: https://github.com/laurent22/joplin/
Mailing list: https://discourse.joplinapp.org/
Chat: https://discord.com/invite/VSj7AFHvpq

go deeper in your terminal

git-into-gsoc org "Joplin" --shortlist
git-into-gsoc repos "Joplin"
git-into-gsoc issues --org "Joplin"

or ask your assistant:
"Which Joplin repositories merge
newcomers' pull requests, and which beginner
issues are still free?"

Those commands read live data: which repositories merge outside pull requests, and which beginner issues nobody has claimed. Install in two minutes.