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Best Open Source foss Libraries

A curated list of the most popular GitHub repositories tagged with foss. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1usememos/memos

An open-source, self-hosted note-taking service. Your thoughts, your data, your control — no tracking, no ads, no subscription fees.

57,104Go
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#2RocketChat/Rocket.Chat

The Secure CommsOS™ for mission-critical operations

44,689TypeScript
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#3zulip/zulip

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

24,705Python
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#4wekan/wekan

The Open Source kanban, built with Meteor. GitHub issues/PRs are only for FLOSS Developers, not for support, support is at https://wekan.fi/commercial-support/ . New English strings for new features at imports/i18n/data/en.i18n.json . Non-English translations at https://app.transifex.com/wekan/wekan only.

20,845JavaScript
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#5streetwriters/notesnook

A fully open source & end-to-end encrypted note taking alternative to Evernote.

13,705TypeScript
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#6opensearch-project/OpenSearch

🔎 Open source distributed and RESTful search engine.

12,421Java
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#7is-a-dev/register

Grab your own sweet-looking '.is-a.dev' subdomain.

9,590JavaScript
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#8offa/android-foss

A list of Free and Open Source Software (FOSS) for Android – saving Freedom and Privacy.

9,373Python
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#9henrypp/memreduct

Lightweight real-time memory management application to monitor and clean system memory on your computer.

8,814C
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#10MetrolistGroup/Metrolist

YouTube Music client for Android

6,813Kotlin
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#11spacebarchat/spacebarchat

📬 Spacebar is a free open source selfhostable discord compatible communication platform

6,577
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