Best Authorization Open Source Tools in 2026

Matrix

Communication & Collaboration Web & App Development IT Management+1

Open protocol for secure, decentralized messaging and VoIP

stars 12.1Klicense Apache-2.0lang Python

Chat Security WebSocket Servers+11

Element

Communication & Collaboration Security & Monitoring IT Management+1

Secure team chat built on the Matrix open protocol

stars 13Klicense AGPL-3.0lang TypeScript

Chat File Sharing Security+8

Scoold

Communication & Collaboration Business & Productivity IT Management+2

Self-hosted Q&A platform for internal team knowledge

stars 916license Apache-2.0lang Java

Knowledge Management Knowledge Base Customer Support+11

Jami

Communication & Collaboration Security & Monitoring

Free P2P encrypted messaging, calls, and file sharing

stars 165license GPL-3.0lang C++

Chat File Sharing Security+7

Tinode

Communication & Collaboration Web & App Development IT Management

Self-hosted instant messaging platform for web and mobile apps

stars 13.3Klicense GPL-3.0lang Go

Chat WebSocket Servers Self Hosted+7

Mumble

Communication & Collaboration IT Management

Free open source low-latency voice chat for gaming teams

stars 8Klicense NOASSERTIONlang C++

Self Hosted Open Core Security+4

SigNoz

Security & Monitoring Product & Project Management Data & Analytics+2

Open source APM with logs, traces, metrics, and dashboards

stars 26.7Klicense NOASSERTIONlang TypeScript

Monitoring Self Hosted Open Core+19

Unleash

Web & App Development Product & Project Management Security & Monitoring+2

LaunchDarkly alternative with SDK for 30+ languages, self-hosted

stars 13.4Klicense Apache-2.0lang TypeScript

Feature Flag A/B Testing Developer Tools+10

Codegen

Web & App Development AI & Machine Learning Business & Productivity+2

AI that reviews your code, fixes bugs, and implements features

stars 521license Apache-2.0lang Python

AI Coding Assistant AI Agents Coding+16

RustDesk

IT Management Communication & Collaboration Business & Productivity+1

Self-hosted remote desktop with end-to-end encryption

stars 113Klicense AGPL-3.0lang Rust

Self Hosted Security File Sharing+5

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