Hanko

Privacy-first, framework-agnostic authentication and user management platform

HAProxy

High-performance reverse proxy for HTTP and TCP traffic

Haraka

High-performance Node.js SMTP server with modular plugin architecture

Harness

End-to-End DevOps Platform with Git, CI/CD, and Registries

Hashicorp Vault

Secure secrets management with encryption and access control

Hawk Eye

Scan every data source for PII and secrets instantly

Haystack

End-to-end LLM framework for building production-ready RAG applications

Headscale

Self‑hosted Tailscale control server for personal and small‑scale networks

Helicone

Open-source LLM observability and developer platform for AI applications

Helpy

Modern helpdesk platform combining ticketing, knowledgebase, and community forums

Hexabot

Build customizable AI chatbots with multi-channel deployment capabilities

HeyForm

Open-source conversational form builder for engaging surveys and quizzes

highlight.io

Open-source fullstack monitoring with session replay and error tracking

Higress

Cloud-native API gateway with AI and Wasm extensibility

HolmesGPT

AI-driven agent that diagnoses cloud incidents and suggests fixes.

Hoppscotch

Lightweight API development ecosystem for testing and collaboration

Hopsworks

Real-time AI Lakehouse with Python-centric Feature Store

Hound

Automated style guide enforcement for GitHub pull requests.

HTTPie

Human-friendly command-line HTTP client for the API era

Hugo

Fast, flexible static site generator built with Go

Hugo Blox

Build blazing-fast technical and academic sites in minutes

Huly

Framework for building business applications like CRM and HRM

HumHub

Modular social platform for teams, intranets, and communities

Hurl

Run and test HTTP requests from a single fast CLI