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Cloudflare Tunnel

Cloudflare, Inc. · Tunneling & remote access

In-depth entry

Outbound-only connector (cloudflared) that publishes local web services and private networks through Cloudflare's edge without opening inbound ports

Apache-2.0FreemiumPaidLocalNov 2, 2026

ComfyUI

Comfy Org · Voice, vision & multimodal AI

Open-source node-based interface and inference engine for diffusion and other generative models (image, video, audio, 3D), runnable locally with desktop apps or as a hosted cloud

GPL-3.0-onlyOpen sourceFreeLocalNov 2, 2026

CrowdSec

CrowdSec · Security tools

Open-source behavior-based intrusion prevention engine whose detections feed a crowd-sourced IP reputation network, with remediation components for firewalls, proxies and CDNs

MITOpen sourceFreemiumSelf-hostedNov 2, 2026

Dagster

Dagster Labs · ETL/ELT & orchestration

Asset-oriented Python orchestrator that models pipelines as software-defined data assets with lineage, checks and a hosted Dagster+ option

Apache-2.0Open sourceFreemiumLocalSelf-hostedRedirected

dbt

dbt Labs (Fivetran + dbt Labs) · ETL/ELT & orchestration

In-depth entry

SQL-first transformation framework that compiles templated models, tests and documentation into warehouse tables; open-source Core plus a commercial platform

Apache-2.0Open sourceFreemiumLocalSelf-hostedNov 2, 2026

Discord

Discord Inc. · Collaboration & communication

Community chat platform with servers, text and voice channels, video, forums and a bot API, free to use with optional Nitro subscriptions

ProprietaryFreemiumPaidNov 2, 2026

Docker

Docker, Inc. · Containers & virtualization

In-depth entry

Container platform combining the Docker Engine runtime, the Compose and Build tooling, Docker Desktop for macOS and Windows, and the Docker Hub registry

Apache-2.0Open sourceFreemiumLocalSelf-hostedNov 2, 2026

Firecrawl

Firecrawl (formerly Mendable) · Data collection & crawling

In-depth entry

Web data API that scrapes, crawls, maps and searches websites and returns clean Markdown or structured JSON for LLM pipelines, with an AGPL-licensed self-hostable core

AGPL-3.0-onlyFreemiumPaidSelf-hostedNov 2, 2026

Ghostfolio

Ghostfolio · Portfolio & wealth management

Open-source wealth-tracking web app for stocks, ETFs, crypto and other assets, self-hostable with Docker or used as a hosted service

AGPL-3.0-onlyOpen sourceFreemiumSelf-hostedNov 2, 2026

GitHub Actions

GitHub (Microsoft) · CI/CD & build automation

GitHub's CI/CD and automation service that runs YAML-defined workflows on hosted or self-hosted runners in response to repository events

ProprietaryFreemiumUsage-basedSelf-hostedNov 2, 2026

GitLab

GitLab Inc. · Version control & code hosting

Open-core DevSecOps platform combining Git hosting, merge requests, integrated CI/CD pipelines, registry and security scanning, available as SaaS or self-managed

MITFreemiumPaidSelf-hostedNov 2, 2026

Grafana

Grafana Labs · Monitoring & observability

In-depth entry

Dashboarding and alerting platform that visualizes metrics, logs and traces from Prometheus, SQL databases and dozens of other data sources

AGPL-3.0-onlyOpen sourceFreemiumSelf-hostedNov 2, 2026

Infisical

Infisical Inc. · Secrets management

Secrets, certificate and privileged-access management platform with an MIT-licensed core, available as a hosted service or self-hosted deployment

MITOpen sourceFreemiumSelf-hostedNov 2, 2026

Langfuse

Langfuse (part of ClickHouse, Inc. since January 2026) · Prompting, evaluation & observability

In-depth entry

Open-source LLM observability and evaluation platform: tracing, LLM-as-judge and human evals, prompt management, datasets and cost dashboards, self-hostable or as Langfuse Cloud

MITOpen sourceFreemiumSelf-hostedNov 2, 2026

LangGraph

LangChain, Inc. · Agent frameworks & orchestration

In-depth entry

Low-level orchestration framework and runtime for stateful, long-running agents expressed as graphs, with durable execution, checkpointing, human-in-the-loop and streaming

MITOpen sourceFreeLocalSelf-hostedNov 2, 2026

LlamaIndex

LlamaIndex, Inc. · Agent frameworks & orchestration

Open-source Python framework for retrieval-augmented agents over your data, with connectors, indexes, query engines and event-driven workflows, alongside the commercial LlamaParse document platform

MITOpen sourceFreeLocalSelf-hostedNov 2, 2026

LM Studio

Element Labs, Inc. · Local LLM inference & serving

In-depth entry

Proprietary desktop app for discovering, downloading and running local LLMs with llama.cpp and MLX engines, a chat UI, an OpenAI-compatible server, CLI, SDKs and a headless daemon

ProprietaryFreemiumPaidLocalBroken

MongoDB

MongoDB, Inc. · NoSQL & key-value stores

Document database storing BSON documents with a rich aggregation pipeline, available as a source-available Community Server or the managed Atlas service

SSPL-1.0FreeFreemiumSelf-hostedBroken

Neo4j

Neo4j, Inc. · NoSQL & key-value stores

Native property-graph database queried with Cypher, offered as a GPL community edition, a commercial enterprise edition and the AuraDB cloud service

GPL-3.0Open sourceFreemiumSelf-hostedBroken

ngrok

ngrok, Inc. · Tunneling & remote access

Hosted ingress service that exposes local servers through public URLs via an agent or SDK, with Traffic Policy rules, API gateway features and reserved domains

ProprietaryFreemiumPaidLocalBroken

Odoo

Odoo S.A. · CRM & business operations

Modular open-source business suite (CRM, invoicing, accounting, inventory, website, HR) with an LGPL community edition and a hosted or licensed enterprise edition

LGPL-3.0-onlyOpen sourceFreemiumSelf-hostedBroken

Prefect

Prefect Technologies, Inc. · ETL/ELT & orchestration

Python workflow orchestration library and server where decorated functions become observable, retryable flows, with Prefect Cloud as hosted option

Apache-2.0Open sourceFreemiumLocalSelf-hostedRedirected

Qdrant

Qdrant Solutions GmbH · Vector databases

In-depth entry

Open-source vector search engine written in Rust with filterable HNSW indexes, sparse and multi-vector support, REST/gRPC APIs and a managed cloud

Apache-2.0Open sourceFreemiumLocalSelf-hostedNov 2, 2026

QuantConnect

QuantConnect Corporation · Financial analysis & investing

In-depth entry

Algorithmic trading platform built on the open-source LEAN engine, with cloud backtesting, research notebooks and brokerage-connected live trading

Apache-2.0FreemiumPaidLocalNov 2, 2026

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