Best Open-source AI Code Assistants & Autocomplete tools

Zed

High-performance, collaborative code editor built on Rust

OpenCode

Terminal‑native AI coding assistant, provider‑agnostic and extensible.

Kilo Code

VS Code AI agent for autonomous coding and task automation

OpenHands

AI-powered software development agents that code like humans

Cline

AI coding assistant that edits files and runs commands

stagewise

AI-powered frontend coding agent that edits production web apps

Continue

AI coding assistant with custom agents for IDE and terminal

Roo Code

AI-powered dev team inside your editor, boosting productivity.

Serena

Turn any LLM into a code‑aware development agent

Tabby

Self‑hosted AI coding assistant that runs on consumer GPUs

Aider

AI pair programming in your terminal with LLMs

GPT Pilot

AI developer companion that builds production-ready apps step-by-step

opcode

Visual command center for Claude Code development and AI agents

Plandex

Terminal AI agent that plans, codes, and debugs large projects

Void

AI‑powered code editor that keeps your data private