Best Alternatives to Grass in 2025
Looking for a dedicated VM for your AI coding agent that's always on? While Grass offers a seamless 24/7 environment for tools like Claude Code and OpenCode, there are several strong alternatives that provide similar or complementary capabilities. Here are the best options to consider.
GitHub Codespaces
GitHub Codespaces provides cloud-hosted development environments that are always accessible, similar to Grass's dedicated VM. It integrates deeply with GitHub repositories, offers customizable containers, and supports remote coding sessions with persistent storage, making it a robust choice for teams needing collaborative, always-on dev environments.
Replit
Replit offers an online IDE with instant, always-on virtual machines for coding agents. It supports real-time collaboration, mobile-friendly interfaces, and a wide range of languages, making it a versatile alternative to Grass for developers who want a browser-based, 24/7 coding environment without local setup.
Cursor
The AI Code Editor
Cursor is an AI-powered code editor that integrates with cloud VMs for persistent coding sessions. It provides AI-assisted coding features similar to Grass's agent support, with the ability to run and monitor sessions remotely, though it focuses more on editor-level AI rather than dedicated VM management.
Daytona
Daytona specializes in creating and managing development environments on demand, offering always-on VMs for coding agents. It emphasizes speed and simplicity, with features like environment templates and remote access, making it a direct competitor to Grass for developers needing reliable, 24/7 VM infrastructure.
CodeSandbox
CodeSandbox provides cloud-based development environments with persistent VMs, supporting AI coding agents and real-time collaboration. Its mobile-friendly interface and session continuity features align closely with Grass's offerings, though it leans more toward web development and prototyping.
Gitpod
Gitpod offers prebuilt, always-on development environments that can be accessed remotely, similar to Grass. It integrates with GitHub and GitLab, supports AI coding tools, and provides session persistence, making it a strong alternative for developers who need consistent, cloud-based VMs for their agents.
Each alternative brings unique strengths: GitHub Codespaces for deep GitHub integration, Replit for instant browser-based coding, Cursor for AI-enhanced editing, Daytona for environment management, CodeSandbox for web-focused development, and Gitpod for prebuilt environments. Choose based on your need for collaboration, AI features, or specific workflow integrations.