1Password
AgileBits Inc. (1Password) · Secrets management
Password and secrets manager for individuals, families and businesses with end-to-end encrypted vaults, passkeys, an SSH agent and a developer CLI
ProprietaryPaidEnterpriseLocalNov 2, 2026
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Caddy
Caddy project (sponsored by ZeroSSL) · Reverse proxies & web servers
Go web server and reverse proxy that obtains and renews TLS certificates automatically and is configured with a short Caddyfile or a JSON API
Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026
Cloudflare Tunnel
Cloudflare, Inc. · Tunneling & remote access
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
Docker
Docker, Inc. · Containers & virtualization
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
Elasticsearch
Elastic N.V. · Vector databases
Distributed search and analytics engine on Apache Lucene with full-text, aggregations, vector search and ES|QL; triple-licensed AGPL, SSPL and Elastic License
AGPL-3.0-only OR SSPL-1.0 OR Elastic-2.0Open sourceFreeSelf-hostedNov 2, 2026
Grafana
Grafana Labs · Monitoring & observability
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
Kubernetes
Cloud Native Computing Foundation · Containers & virtualization
Open-source system for scheduling, scaling and operating containerized workloads across a cluster of machines
Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026
Langfuse
Langfuse (part of ClickHouse, Inc. since January 2026) · Prompting, evaluation & observability
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
launchd
Apple Inc. · macOS automation
macOS's built-in service manager that starts, supervises and schedules daemons and per-user agents from property-list job definitions
ProprietaryFreeLocalBroken
Let's Encrypt
Internet Security Research Group (ISRG) · DNS & domains
Nonprofit certificate authority that issues free, automatically renewable TLS certificates through the ACME protocol
MPL-2.0FreeNov 2, 2026
PM2
Keymetrics (Unitech) · Infrastructure & provisioning
Production process manager for Node.js and other long-running programs with cluster mode, log handling, restart policies and boot-time startup scripts
AGPL-3.0-onlyOpen sourceFreeLocalSelf-hostedNov 2, 2026
restic
restic project (Alexander Neumann and contributors) · Backup & recovery
Encrypted, deduplicating backup program written in Go that stores snapshots in local, SFTP, S3-compatible and many cloud backends
BSD-2-ClauseOpen sourceFreeLocalNov 2, 2026
Tailscale
Tailscale Inc. · Tunneling & remote access
WireGuard-based mesh overlay network with a hosted coordination service, identity-provider login, access policies, MagicDNS and features such as Tailscale SSH, Serve and Funnel
BSD-3-ClauseFreemiumPaidLocalNov 2, 2026
WireGuard
WireGuard project (Jason A. Donenfeld) · Tunneling & remote access
Minimal, high-speed VPN protocol and implementation built on modern cryptography, included in the Linux kernel and available on macOS, iOS, Windows, Android and BSD
GPL-2.0-onlyOpen sourceFreeLocalSelf-hostedNov 2, 2026
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