Developer Tools

Open-source AI IDE with spec-driven dev — plan before you code

MCPCore

Build and deploy MCP servers in your browser — no DevOps needed

marimo-pair

Let AI agents step inside your running Python notebooks

Pi-Mono

A batteries-included AI agent monorepo for serious builders

Claw Code

Open-source Claude Code rewrite — multi-agent orchestration, zero lock-in

oh-my-codex

Add AI agent teams, event hooks, and a live HUD to any Git repo

Apfel

Your Mac's hidden on-device LLM, finally set free

CRAG

One governance file, compiled into every AI coding tool's format

Open Browser Control

Drive your real Chrome browser from any MCP client

Gemma 4 Multimodal Fine-Tuner

Fine-tune Gemma 4 with text, images & audio on your Mac

AgentPulse

Visual GUI for AI coding agents — no CLI required

Google Scion

Google's open-source agent hypervisor — isolated containers, separate identities, full orchestration

LiteRT-LM

Run Gemma 4 and other LLMs fully on-device — no cloud required

GitNexus

Knowledge graph for any codebase — runs in browser via WASM

Modo

AI IDE that writes specs before code — not just a Cursor clone

GuppyLM

A 9M-param fish LLM that teaches you how transformers actually work

Recall

Find any file on your machine with a sentence — no tags, no indexing

Freestyle

Full Linux VMs for coding agents that fork in milliseconds

Ogoron

AI QA that replaces your testing team — 9x faster, 20x cheaper

Metoro

AI SRE that auto-detects Kubernetes incidents and raises fix PRs

Glassbrain

Time-travel debugging for AI apps — replay any trace, fix in one click

Goose

The open-source AI agent that actually runs your code

qmd

Local doc search engine with BM25 + vectors + LLM re-ranking — by Shopify's CEO

Lilith-Zero

Rust security middleware that stops AI agents from exfiltrating your data

fff.nvim

Freakin Fast Fuzzy Finder for Neovim — built for AI agents too

GLM-5V-Turbo

Converts design mockups to frontend code, beats Claude at Design2Code

MDArena

Benchmark your CLAUDE.md files against real PRs to see if they actually help

LiteRT-LM

Google's open-source engine for LLMs on phones, browsers & IoT

nanocode

Train Claude Code-style models on TPUs for under $200

Caveman

Claude Code skill that cuts ~75% of tokens by making Claude talk like a caveman

pi-mono

One monorepo: coding agent CLI, unified LLM API, TUI/web libs, Slack bot, vLLM ops

Onyx

Self-hosted AI platform with RAG, agents, and 50+ connectors — MIT licensed

MCPCore

Build and ship production MCP servers in minutes — managed auth, AES-256 secrets, real-time logs

Maritime

Deploy AI agents for $1/month — stateful containers that sleep when idle, wake in milliseconds

Microsoft Harrier-OSS-v1

SOTA multilingual embeddings in 3 sizes — quietly MIT-licensed with zero fanfare

Worktrunk

Lightweight CLI for Git worktree management built for parallel AI agents

imgcmd

Secure CLI that generates real PNGs to disk — no broken SVGs from agents

Handle

Click to tweak your UI, auto-feed changes to your AI coding agent

Agent Governance Toolkit

Open-source runtime security covering all 10 OWASP agentic AI risks

Mozzie

Local-first desktop app that orchestrates AI coding agents in parallel

Parallel Code

Run Claude Code, Codex, and Gemini side by side in isolated worktrees

Apfel

Free CLI for Apple's on-device LLM — no API key, no downloads, runs on macOS

Mercury Edit 2

Diffusion LLM that predicts your next code edit in parallel — not word by word

oh-my-codex (OMX)

oh-my-zsh but for Codex CLI — hooks, teams, and a live HUD

OpenRouter Model Fusion

Run a prompt through multiple LLMs simultaneously and fuse the best answer into one

Baton

Run multiple AI coding agents in parallel — zero merge conflicts guaranteed

Gemini API Docs MCP

Give your coding agent live Gemini API docs so it stops hallucinating old code

TurboQuant (OSS)

Drop-in KV cache compression: 4–7x memory savings, zero accuracy loss

ZeroClaw

A Rust AI agent runtime that boots in 10ms and fits under 5MB

ctx

One interface for Claude Code, Codex, Cursor, and every agent you run

Emdash

Run 23 coding agents in parallel from one desktop app — YC W26

Microsoft Agent Framework

Enterprise multi-agent orchestration — Python and .NET, v1.0

OpenRouter Fusion

Run 5 models in parallel, fuse the best answer into one

MolmoWeb

Allen AI's open-weight web agent trained on 36K human task trajectories

oh-my-claudecode

Teams-first multi-agent orchestration for Claude Code

Claude How To

The missing practical guide to mastering Claude Code

OpenScreen

Free, open-source screen recorder for demos — no subscriptions, no watermarks

GLM-5V-Turbo

Turn wireframes into production code — 200K context, scores 94.8 on Design2Code

Superpowers

Composable skill framework that forces coding agents to do it right

AMUX

Run dozens of parallel AI coding agents unattended via tmux

Cursor 3

Cursor evolves from AI IDE to multi-agent coordination platform

Oh My Codex (OMX)

oh-my-zsh for OpenAI Codex CLI — multi-agent orchestration with 33 prompts

Gemini CLI

Google's free open-source AI agent lives in your terminal

ChromaFs

Replace RAG sandboxes with a virtual filesystem — 460x faster boot

fff.nvim

Frecency-aware file search built for both Neovim devs and AI agents

tldr MCP Gateway

Shrink 41+ MCP tool schemas by 86% before they hit your model

Kin-Code

Claude Code reimagined as a 9MB Go binary with zero dependencies

Coasts

Containerized sandboxes for running AI agents safely in production

TurboVec

2-4 bit vector compression that beats FAISS with zero training

Agents Observe

Real-time dashboard for monitoring Claude Code multi-agent teams

Axolotl v0.16

15x faster MoE+LoRA fine-tuning with 40x memory reduction

Cohere Command A

111B parameters. Enterprise-grade. Built to act, not just answer.

Claude Files API & Token-Efficient Tool Use

Upload once, reuse forever — Claude's API just got leaner and meaner

Mistral Small 3.1

Lightweight multimodal AI — vision + text, open weights, zero compromise

Ollama

Run LLMs locally on your machine — no cloud needed

Postman

API platform with AI-powered testing and documentation

Cq

Stack Overflow for AI agents — by Mozilla AI

Community1/0

Extractor

Robust LLM-powered web content extraction

Community1/0

LM Studio

Desktop app for running local LLMs with a ChatGPT-like UI

Cursor

The AI code editor that writes code for you

Extractor

Robust LLM-powered web data extraction in TypeScript

Turbolite

Sub-250ms cold JOIN queries from SQLite on S3

Agent Kernel

Three Markdown files that make any AI agent stateful

Claude Code

Anthropic's agentic coding tool that lives in your terminal

ProofShot

Give AI coding agents eyes to verify the UI they build

Bolt.new

Prompt to full-stack app in your browser

Optio

Orchestrate AI coding agents in Kubernetes from ticket to PR

Cq

Stack Overflow for AI coding agents, by Mozilla AI

v0

AI-powered UI generation from prompts — by Vercel

Community1/0

Lovable

Full-stack app builder with visual editing and one-click deploy

Replit

AI-powered cloud IDE with instant deployment

GitHub Copilot

AI pair programmer from GitHub — code suggestions in your editor

Windsurf

AI-native IDE by Codeium — Cascade agentic flow

Cline

Autonomous AI coding agent for VS Code

Devin

Autonomous AI software engineer by Cognition

Pieces

AI-powered developer workflow tool for code snippets

Community0/1

Warp

AI-native terminal — the command line, reimagined

Aider

Open-source AI pair programmer for your terminal

Jan

Open-source ChatGPT alternative that runs locally

Open WebUI

Self-hosted ChatGPT-style UI for any LLM

LM Studio

Desktop app for running local LLMs with a ChatGPT-like UI

Hoppscotch

Open-source API development ecosystem

Tailwind CSS

Utility-first CSS framework — build UIs without leaving your HTML

Continue

Open-source AI code assistant for VS Code and JetBrains

Gemini Code Assist

Google's AI coding assistant for Cloud and enterprise

Amazon Q Developer

AI coding assistant built for AWS and enterprise

Cody by Sourcegraph

AI coding assistant with full codebase context

Claude Agent SDK

Build production AI agents with Claude

bolt.new

Full-stack web development in the browser

Trigger.dev v3

Background jobs with long-running support

Copilot Workspace

AI-native development environment from GitHub

SWE-Agent

AI agent for resolving GitHub issues

Zed

High-performance multiplayer code editor

Gemini API

Google's multimodal AI model API

Oxlint

Blazing fast JavaScript linter

Amazon Q

AWS AI assistant for developers and businesses

Marimo

Next-generation Python notebook

Instructor

Structured outputs from LLMs

Biome

Fast formatter and linter for web projects

Outlines

Structured text generation for LLMs

PartyKit

Real-time multiplayer infrastructure

Vercel AI SDK

TypeScript toolkit for building AI applications

Langfuse

Open-source LLM engineering platform

Continue

Open-source AI code assistant

Helicone

Open-source LLM observability platform

Anthropic API

Claude API for building AI applications

Rspack

Rust-based JavaScript bundler

shadcn/ui

Beautifully designed components you own

Drizzle ORM

TypeScript ORM that's slim and fast

Val Town

Social website to write and deploy TypeScript

Trigger.dev

Open-source background jobs for developers

Elysia

Ergonomic web framework for Bun

Effect

Production-grade TypeScript framework

TanStack Router

Type-safe routing for React

Bruno

Open-source API client stored in git

Codeium

Free AI code completion and chat

GraphQL Yoga

The simplest GraphQL server

Astro

The web framework for content-driven websites

Bun

All-in-one JavaScript runtime and toolkit

PocketBase

Open-source backend in one file

Tauri

Build small, fast desktop apps with web frontends

Grafbase

Instant serverless GraphQL backend

Dagger

Programmable CI/CD engine

Hono

Ultrafast web framework for the edge

Nitro

Universal server engine

Mintlify

Beautiful documentation that converts

Vitest

Blazing fast unit test framework powered by Vite

Convex

Reactive backend-as-a-service

Inngest

Durable workflow engine for developers

Turborepo

High-performance build system for monorepos

Remix

Full-stack web framework with web fundamentals

Wasp

Full-stack web framework in a DSL

tRPC

End-to-end type-safe APIs

SolidJS

Simple and performant reactivity for building UIs

ToolJet

Open-source low-code platform

Payload CMS

The most powerful TypeScript headless CMS

Liveblocks

Real-time collaboration infrastructure

htmx

High-power tools for HTML

Temporal

Durable execution for distributed applications

IBM StepZen

GraphQL as a service

OpenAI API

GPT-4 and beyond — the most popular AI API

Deno

Secure JavaScript and TypeScript runtime

Encore

Development platform for type-safe distributed systems

Zod

TypeScript-first schema validation

Budibase

Build internal apps in minutes

Amazon CodeWhisperer CLI (Fig)

AI-powered terminal autocomplete

Nhost

Open-source Firebase alternative with GraphQL

Clerk

Drop-in authentication and user management

SWC

Speedy web compiler written in Rust

Playwright

Reliable end-to-end testing for modern web apps

GitHub Actions

CI/CD built into GitHub

Appsmith

Open-source low-code platform for internal tools

Streamlit

Build data apps in Python

Appwrite

Open-source backend as a service

Phoenix LiveView

Rich server-rendered UIs with Elixir

TanStack Query

Powerful async state management

Prisma

Next-generation ORM for Node.js and TypeScript

Tabnine

AI code assistant with privacy focus

Flagsmith

Open-source feature flags and remote config

Wrangler

CLI for Cloudflare Workers

Flutter

Google's UI toolkit for multi-platform apps

Hasura

Instant GraphQL and REST APIs on your data

Nx

Smart monorepo build system

Bit.dev

Component-driven development platform

Docusaurus

Build optimized documentation websites

Cypress

JavaScript end-to-end testing framework

StackBlitz

Browser-based full-stack development

Retool

Build internal tools remarkably fast

Sanity

The composable content cloud

pnpm

Fast, disk space efficient package manager

Chromatic

Visual testing and review for Storybook

Svelte

Cybernetically enhanced web apps

Next.js

The React framework for the web

Insomnia

The open-source API development platform

Recharts

Composable charting library for React

Storybook

Frontend workshop for building UI components in isolation

Lerna

Monorepo management for JavaScript

Strapi

Open-source headless CMS

React Native

Build native mobile apps with React

Expo

Framework for building React Native apps

Unleash

Open-source feature flag management

Jest

Delightful JavaScript testing

LaunchDarkly

Feature flag management platform

Vue.js

The progressive JavaScript framework

Electron

Build cross-platform desktop apps with web technologies

Sourcegraph

Code search and intelligence platform

Contentful

The composable content platform

ngrok

Unified ingress platform

HTTPie

API testing client with a human-friendly CLI

Directus

Open-source data platform and headless CMS

GitLab

Complete DevOps platform in a single application

Swagger / OpenAPI

API documentation and design standard