JetBrains AI Assistant / Junie vs Replit Agent: Side-by-Side Comparison 2026

JetBrains AI Assistant / Junie is an editor extension from JetBrains — native ai assistant for jetbrains ides. Replit Agent is an app builder from Replit — build, run, and ship apps in the browser.

JetBrains AI Assistant / Junie

JetBrains AI Assistant / Junie — AI Code Assistant from JetBrains. IDE-Integrated AI.

✓ Code completions
✓ AI chat
✓ Junie (autonomous agent)
✓ Multi-file editing
✓ Terminal commands

Free / $10/mo · 3 plans

Replit Agent

Cloud-based IDE and app platform with an AI assistant that can build, debug, and deploy applications directly in the browser.

✓ Browser-based IDE
✓ AI assistant
✓ Multiplayer coding
✓ One-click deploy
✓ Database integration

Free / $25/mo · 4 plans

Feature	JetBrains AI Assistant / Junie	Replit Agent
Category	Extension	Builder
Starting Price	Free	Free
Model Family	Multi-model	Proprietary
Open Source	No	No

Key Differences

Category: JetBrains AI Assistant / Junie is an editor extension; Replit Agent is an app builder.
Starting price: JetBrains AI Assistant / Junie starts at $10/mo; Replit Agent starts at $25/mo.
Model family: JetBrains AI Assistant / Junie uses Multi-model; Replit Agent uses Proprietary.
Bring your own key: JetBrains AI Assistant / Junie supports BYOK; Replit Agent does not.
Platforms: JetBrains AI Assistant / Junie runs on Linux, Windows, macOS; Replit Agent runs on SSH to local, Web (browser-based).
Provider: JetBrains AI Assistant / Junie is built by JetBrains; Replit Agent is built by Replit.

Which Should You Choose?

Choose JetBrains AI Assistant / Junie if you want native AI assistance with multi-model choice and agentic capabilities. Choose Replit Agent if you want a great platform for learning to code with AI. Read our full reviews to see which fits your workflow.