Open-source IT tools

ElasticSIEM & Threat Intelligence

Elastic Security brings SIEM and endpoint signals onto the Elasticsearch platform.

EstuaryDatabases

Estuary Flow combines change data capture (CDC), streaming, and batch ETL into one managed platform with 200+ connectors, letting teams build real-time pipelines for analytics, operations, and AI without stitching together separate tools.

FirezoneCybersecurity

Firezone is an open-source zero-trust remote-access platform built on WireGuard. Its Starter plan is free for small teams, with paid Team and custom Enterprise plans adding centralized management and support.

FlowiseAI Platforms & Generative AI

Flowise is an open-source, self-hostable LLM/agent builder acquired by Workday in 2025. Workday announced Flowise is being sunset: feature work stopped and core support ended 31 August 2026.

GitLabVersion Control & Code Hosting

GitLab combines Git repositories, merge requests and CI/CD; security features and deployment choices depend on edition and plan.

GPT4AllAI Platforms & Generative AI

GPT4All is a free, open-source desktop application from Nomic AI that runs open-source large language models locally on Windows, macOS and Linux, with no data leaving the device.

GrafanaMonitoring & Observability

Grafana is an open source visualization and dashboarding platform that queries metrics, logs, and traces from Prometheus, Loki, Tempo, and dozens of other backends, with Grafana Cloud offering a hosted option.

HelmContainers & Kubernetes

Helm packages Kubernetes applications as versioned charts, providing templating, releases and rollbacks; it is a graduated CNCF project maintained by the community.

Highlight.ioMonitoring & Observability

Highlight.io was an open-source, full-stack monitoring platform (session replay, errors, logs, traces); its marketing site now redirects to LaunchDarkly, though the GitHub project remains active.

HVToolsVirtualization & VDI

HVTools is listed in Virtualization & VDI; review its current product scope, deployment model and fit before shortlisting.

InfluxDBDatabases

InfluxDB stores time-series and event data for monitoring, sensor and real-time application workloads.

InsomniaTesting & QA

Insomnia is a free, open-source desktop API client from Kong for designing, testing and debugging REST, GraphQL, gRPC and WebSocket APIs, with optional paid team collaboration plans.

IntuneAutomationIT tools

IntuneAutomation is a free, MIT-licensed collection of about 60 PowerShell scripts for common Intune admin tasks, runnable locally or as Azure Automation runbooks.

IntuneGetEndpoint & Patch Management

IntuneGet helps administrators turn selected Winget packages into Microsoft Intune app deployments, with hosted and self-hosted options.

JenkinsCI/CD

Jenkins is a self-hosted automation server that runs CI/CD pipelines defined as code (Jenkinsfile), extended through a large plugin ecosystem.

kageDeveloper Tools

kage clones any website for offline viewing using headless Chrome. It renders pages, strips all JavaScript, downloads all assets locally, and packages everything into a browsable offline archive.

KubernetesContainers & Kubernetes

Kubernetes automates deployment, scaling, and management of containerized workloads across clusters of machines, using a declarative, desired-state model.

LangChainAI Platforms & Generative AI

LangChain is an MIT-licensed open-source framework (Python/JS) for building LLM applications and agents via LangGraph; LangSmith adds optional hosted tracing, evaluation and deployment.

LlamaIndexAI Platforms & Generative AI

LlamaIndex is an MIT-licensed open-source framework (Python/TypeScript) for RAG pipelines and data agents on top of LLMs; LlamaCloud adds hosted document parsing and extraction.

LogseqKnowledge Management

Logseq organizes knowledge through linked pages, blocks, references and queries.

MetabaseAnalytics & BI

Metabase lets teams explore data with a no-code query builder or SQL, build dashboards and embed analytics, available self-hosted (free, AGPL) or via Metabase Cloud.

MilvusAI Platforms & Generative AI

Milvus is an open-source vector database for large-scale similarity search in AI apps, self-hostable as standalone or a distributed cluster, or via managed Zilliz Cloud.

Mistral AIAI Platforms & Generative AI

Mistral AI provides model access and developer tools through its Studio and API, alongside Le Chat and coding-oriented products.

MySQLDatabases

MySQL is a relational database using SQL, dual-licensed under GPL and a commercial Oracle license, with InnoDB as its default transactional storage engine.