Best Tool tools — Open source

Visual Studio Code

Code Editing. Redefined.

#1 — 192,562 GitHub stars

Ollama

Run large language models locally

#2 — 181,051 GitHub stars

Open WebUI

Self-hosted LLM chat interface

#3 — 152,169 GitHub stars

ComfyUI

Node-based AI image pipelines

#4 — 133,345 GitHub stars

Excalidraw

Virtual whiteboard for sketching hand-drawn diagrams

#5 — 132,024 GitHub stars

Kubernetes

Production-grade container orchestration

#6 — 127,742 GitHub stars

Uptime Kuma

Self-hosted uptime monitoring

#7 — 91,398 GitHub stars

Zed

Code at the speed of thought

#8 — 90,277 GitHub stars

uv

An extremely fast Python package and project manager, written in Rust

#9 — 89,850 GitHub stars

Hoppscotch

The open-source API development ecosystem

#10 — 80,310 GitHub stars

Caddy

Every site on HTTPS

#11 — 75,763 GitHub stars

Docusaurus

Build optimized websites quickly

#12 — 66,248 GitHub stars

Traefik

The cloud native application proxy

#13 — 64,851 GitHub stars

MinIO

Power every enterprise AI workload

#14 — 61,366 GitHub stars

Ghostty

A fast, feature-rich, cross-platform terminal emulator

#15 — 61,147 GitHub stars

Penpot

The open-source design tool for design & code collaboration

#16 — 60,023 GitHub stars

Gitea

Private, fast, reliable DevOps platform

#17 — 57,990 GitHub stars

DBeaver

Universal Database Tool

#18 — 51,914 GitHub stars

Terraform

Provision cloud infrastructure as code

#19 — 49,662 GitHub stars

Ruff

An extremely fast Python linter and code formatter, written in Rust

#20 — 49,637 GitHub stars

Bruno

Fast and Git-friendly open-source API client

#21 — 46,970 GitHub stars

Jan

Open-source ChatGPT that runs offline

#22 — 44,479 GitHub stars

Insomnia

Design and debug APIs like a human

#23 — 40,018 GitHub stars

nginx

High performance load balancer and web server

#24 — 31,648 GitHub stars

k6

The best developer experience for API testing

#25 — 31,494 GitHub stars

OpenTofu

Open-source infrastructure as code

#26 — 30,185 GitHub stars

Nx

Build system for monorepos

#27 — 29,333 GitHub stars

marimo

The future of Python notebooks is here

#28 — 22,780 GitHub stars

Dagger

CI/CD pipelines as code

#29 — 16,250 GitHub stars

Scalar

Interactive API documentation

#30 — 16,114 GitHub stars

Litestream

Streaming SQLite replication

#31 — 14,409 GitHub stars

SonarQube

Code quality and security

#32 — 10,984 GitHub stars

Mailpit

Email and SMTP testing tool with API for developers

#33 — 10,479 GitHub stars

OrbStack

Say goodbye to slow, clunky containers and VMs

#34 — 9,322 GitHub stars

Apache HTTP Server

The number one web server

#35 — 4,031 GitHub stars

NativePHP

Native desktop apps in PHP.

#36 — 3,887 GitHub stars

Pint

The Python Unit Conversion Library

#37 — 3,164 GitHub stars

Ray

Debug Faster Than Ever Before

#38 — 626 GitHub stars

Tinkerwell

The Magical Code Editor for PHP

#39 — 46 GitHub stars

Docker

Build, share, and run any app anywhere

#40

Graphite

Stacked pull requests, simplified

#41