Juno

Decentralized serverless platform with zero operational complexity

JupyterHub

Scalable multi-user hub for Jupyter notebooks

JupyterLab

Next-generation interactive computing environment for notebooks, code, and data

Jupytext

Edit Jupyter notebooks as plain text scripts for seamless version control

K3s

Lightweight, production‑ready Kubernetes in a single <100 MB binary

Kamon

Unified tracing, metrics, and context propagation for JVM applications

Kanboard

Self-hosted Kanban project management software in maintenance mode

Kaneo

Fast, self-hosted project management platform that stays out of your way

Kanidm

Simple, secure identity management platform with everything built-in

Kanri

Modern offline Kanban board app for desktop productivity

Kap

Capture your macOS screen effortlessly with a sleek web‑based recorder

Karakeep

Self-hosted bookmark manager with AI tagging and full-text search

Katana

Fast, configurable web crawler with headless and JavaScript support

kbin

Decentralized Reddit‑style aggregator and micro‑blogging platform for the Fediverse

KeePassXC

Cross-platform password manager for secure offline credential storage

KeeWeb

Cross-platform password manager compatible with KeePass databases

Keila

Self‑hosted newsletter platform with flexible email delivery options

Kener

Sleek, lightweight status pages with easy customization

Kestra

Event-Driven Declarative Orchestration Platform for Modern Workflows

Keycloak

Open Source Identity and Access Management for Modern Applications

Keystone

Headless CMS with auto-generated GraphQL API and admin UI

Khoj

Personal AI assistant that learns from your documents

KICS

Secure your infrastructure-as-code before deployment with KICS

Kill Bill

Open-source subscription billing and payments platform for SaaS