Alternatives to Tessera AI

Pioneering open-source AI coding agent for VS Code and JetBrains, now archived after Cursor acquisition.

JetBrains IDE AI coding agent for deep-context refactoring and test generation

Open-source, local-first AI design workspace that wires your coding agent into a design engine

AI coding assistant plugin for JetBrains IDEs with Spring and database awareness.

Local-first, open-source AI coding agent that builds its own harness and automates your desktop.

Glamourous agentic coding in your terminal, wired to your own LLM of choice.

Open-weight agentic coding models for secure on-prem enterprise AI

Multi-agent AI coding assistant for VS Code, launching soon

AWS-native AI coding assistant with agentic automation for developers

Enterprise AI coding assistant with governance-first, on-prem and air-gapped deployment

AI code completion and agentic coding with multi-model flexibility

Free AI code autocomplete, chat, and agent coding in your IDE

Spec-driven AI coding platform that turns prompts into tested, production-ready code with parallel agents.

Orchestrate fleets of local and cloud coding agents from one AI-native IDE.

Open platform to build, run, and orchestrate AI coding agents across your SDLC

IDE-native coding assistant with AI-provider choice and multi-agent flexibility.

AI code assistant for React, Vue, and Tailwind devs, embedded in VS Code and JetBrains IDEs

Open-source, self-hosted AI coding agent that plans, executes, and deploys tasks in your IDE.

Agent-centric IDE for orchestrating multiple coding agents on a Sessions Board.

The autonomous AI coding agent that plans, builds, tests, and ships software with cloud, CLI, and Slack collaboration.

Fast Rust-based code editor with multiplayer collaboration and agentic AI coding.

Open-source autonomous coding agent for IDE, CLI, and parallel Kanban boards.

Minimal, extensible terminal coding agent harness — adapt Pi to your workflow.

Free, open-source AI code assistant for JetBrains IDEs with spec-driven development

Moonshot AI's agentic workspace for coding, research, and knowledge work.

Open-source ruleset that makes AI coding agents write minimal, pragmatic code.

Open-source AI coding agent with 500+ models, zero markup, and multi-IDE support.

Open-source AI coding agent for terminal, IDE, and desktop with model-agnostic provider support.

Free, open-source macOS terminal + live diff cockpit for vibe coding with agent orchestration

Open-source desktop workspace to run and route multiple AI coding agents locally.