# Alternatives to Junie by JetBrains

> Source: https://theagentsindex.com/jetbrains-junie/alternatives/ (re-verified)
> Updated: 24 October 2026

## At a glance

| Name | Best for | Starts at | Better than Junie by JetBrains at | Checked |
| --- | --- | --- | --- | --- |
| [Junie by JetBrains](https://theagentsindex.com/jetbrains-junie.md) | JetBrains IDE users who want one coding agent in the editor, the terminal and CI | Free, then about $11/seat/month | — | 24 October 2026 |
| [Factory](https://theagentsindex.com/factory-ai.md) | Engineering organizations that want AI agents handling more of the SDLC than code generation alone (triage, testing, release and documentation) and are willing to pay enterprise pricing for deployment flexibility and compliance controls. | From $20/month | In a browser, Open source | 2 September 2026 |
| [OpenCode](https://theagentsindex.com/opencode.md) | Developers who want a genuinely free, fully open-source coding agent that works with any model provider, including their own local Ollama models, without being locked into one vendor's terminal tool. | Free, then $10/month | In a browser, Self-hosted | 21 October 2026 |
| [Aider](https://theagentsindex.com/aider.md) | Developers who want free, model-agnostic AI pair programming in their terminal | Free | Self-hosted, Open source | 30 September 2026 |
| [Muse Code](https://theagentsindex.com/muse-code.md) | Cost-sensitive teams willing to trade code privacy for Contributor tier's roughly 12x cheaper input and 21x cheaper output, or anyone with a large multi-part refactor that benefits from several sub-agents working in parallel isolated worktrees. | From $5/month | Open source, Admin controls | 20 September 2026 |
| [Junie](https://theagentsindex.com/junie.md) | Developers and teams already standardized on a JetBrains IDE who want an agent that shares the same debugger, project index, and version control already built into their editor. | Free, then about $11/seat/month | — | 18 September 2026 |
| [Letta](https://theagentsindex.com/letta.md) | Developers and researchers who specifically need an agent whose memory, skills and identity genuinely persist and evolve across long-running sessions, rather than reset on every call. | Free, then $20/month | In a browser, Self-hosted | 2 September 2026 |
| [Google Antigravity CLI](https://theagentsindex.com/antigravity-cli.md) | Developers already inside the Google ecosystem (Google AI subscription, GCP billing) who want a free terminal agent with Gemini, Claude and gpt-oss model access, especially anyone migrating off a now-sunset Gemini CLI workflow. | Free, then $30/seat/month | Admin controls | 22 October 2026 |

“About” figures are converted at the European Central Bank rate of 23 October 2026.

## What to watch for

- **Factory**: No free tier or trial — the cheapest plan is $20/month.
- **OpenCode**: The web UI's server-URL-override feature and local HTTP server have a real, disclosed 2026 security history (two now-patched advisories), so running it on a shared or untrusted network needs care.
- **Aider**: Usage numbers like 44K GitHub stars, 6.8M installs, 15B tokens/week and the 88% 'Singularity' metric are self-reported on aider.chat; independent verification of these figures was not found.
- **Muse Code**: Three observer agents (memory, skill, goal) run by default and add their own billed model calls on top of the main session, switchable in settings.json under runtime_capabilities.
- **Junie**: Credit-based pricing shared across all JetBrains AI features makes the effective monthly cost of regular agentic use harder to predict than a flat subscription.
- **Letta**: Smaller ecosystem and community than LangChain, LlamaIndex or Microsoft AutoGen.
- **Google Antigravity CLI**: Not yet open source. No LICENSE file in its public GitHub repo, unlike the Apache-2.0 Gemini CLI it replaces, and Google has not confirmed whether that will change.

The ones people open most here come first, then the closest matches.

## Shortlist

### 1. Factory

Droid coding agents that run in the desktop app, CLI, IDEs, CI and Factory-managed cloud computers.

**Where it improves on Junie by JetBrains:**
- [In a browser: yes — Sessions sync to app.factory.ai in any browser, with nothing to install.](https://docs.factory.ai/)
- [Open source: partial — The CI action is a public repository; the Droid agent itself ships as binaries, with no source offered.](https://docs.factory.ai/software-factory/code-review-ci)

**Trade-offs against Junie by JetBrains:**
- [Ships it: partial — High autonomy permits pushes, deployments and migrations; the Release stage that tracks ship gates is Private Preview.](https://docs.factory.ai/droid-exec/overview)
- [Free tier: no — Every priced plan on the page is paid: the ladder runs 01 Pro at $20/mo to 06 Enterprise, with no $0 tier and no trial named anywhere on it, so the cheapest way in is a self-serve $20 monthly subscription. Free usage appears only inside paid plans - a BYOK allowance and a free switch to Droid Core after a rate limit.](https://factory.com/pricing)
- [Pooled budget: partial — Teams seats each keep their own Pro rate limits; Business and Enterprise usage is shared across the workspace.](https://docs.factory.ai/pricing/organizations)

[View Factory](https://theagentsindex.com/factory-ai)

### 2. OpenCode

Open source AI coding agent for the terminal, desktop, IDE and browser, with any LLM provider.

**Where it improves on Junie by JetBrains:**
- [In a browser: yes — A browser interface is served by the local binary, bound to localhost by default and optionally exposed on the network with basic auth.](https://opencode.ai/docs/web/)
- [Self-hosted: yes — The agent runs on your own machine or server with no vendor backend in the path, and enterprises can point it at an internal AI gateway only.](https://opencode.ai/docs/enterprise/)
- [Open source: yes — Source is public under the MIT licence and the project takes outside issues and pull requests, so the agent itself can be forked and modified.](https://opencode.ai/)

**Trade-offs against Junie by JetBrains:**
- [Whole-codebase work: partial — Built for multi-step work across a repository through subagents and LSP loading, but the docs describe no repository-wide index or migration guarantee, so scale rests on agent orchestration.](https://opencode.ai/docs/agents/)
- [Ships it: partial — Stops at a branch and a pull request in the documented GitHub flow; deployment is only possible because shell commands are permitted, not as a described feature.](https://opencode.ai/docs/github/)
- [Seat model: partial — The gateway charges no seat fee at any team size, so seats only appear in the unpriced enterprise agreement, which is quoted rather than published.](https://opencode.ai/docs/enterprise/)

[View OpenCode](https://theagentsindex.com/opencode)

### 3. WTAgent

Open-source CLI that drives your existing ChatGPT, Claude or DeepSeek web session as a local coding agent.

**Where it improves on Junie by JetBrains:**
- [Self-hosted: yes — Everything but the chat itself runs on your own machine: files are created and commands executed locally by the installed CLI.](https://xixian42.github.io/wtagent/)
- [Open source: yes — The full source sits in a public GitHub repository under the MIT licence, with the licence linked from the site footer.](https://xixian42.github.io/wtagent/)
- [Getting out: yes — There is nothing to export from a vendor: session state, event logs and tool output are plain JSON and JSONL files on your own disk.](https://github.com/XiXian42/wtagent/blob/main/docs/technical-design.md)

**Trade-offs against Junie by JetBrains:**
- [Ships it: partial — Pushing, releasing and deploying are permitted but classified as external-risk actions that always stop for an explicit human approval prompt.](https://github.com/XiXian42/wtagent/blob/main/docs/technical-design.md)
- [Runs autonomously: partial — Reads, writes and ordinary project commands run automatically, but a human must sign in to the web AI first and approve anything sensitive or destructive.](https://github.com/XiXian42/wtagent/blob/main/docs/technical-design.md)
- [Agent permissions: partial — A local policy engine grades every tool call by risk: reads, writes and builds inside the project run unattended, sensitive or destructive calls need approval.](https://github.com/XiXian42/wtagent/blob/main/docs/technical-design.md)

[View WTAgent](https://theagentsindex.com/wtagent)

### 4. Aider

Open-source terminal AI pair programmer that edits files in your local git repo and commits the changes.

**Where it improves on Junie by JetBrains:**
- [Self-hosted: yes — Aider is installed on your own machine with pip, uv, pipx or Docker and edits files in your local repo, so there is no vendor runtime to depend on.](https://aider.chat/docs/install.html)
- [Open source: yes — The company behind the tool states the source is on GitHub under a permissive Apache 2.0 licence, and documents running and modifying it from source.](https://aider.chat/docs/faq.html)
- [Getting out: yes — Nothing is locked in a vendor store: edits land as commits in your own git repo and the chat transcript is a plain markdown file you can copy, and there are no credits that could expire.](https://aider.chat/docs/faq.html)

**Trade-offs against Junie by JetBrains:**
- [Reviews code: partial — Review works by piping a diff into the chat yourself with /run git diff or --read and then asking in ask mode; there is no pull-request integration that reviews someone else's diff automatically.](https://aider.chat/docs/faq.html)
- [Whole-codebase work: partial — A ranked map of the whole git repo gives it repository-wide context, but the vendor warns performance is not optimised for very large monorepos and only one repo can be open at a time.](https://aider.chat/docs/faq.html)
- [Ships it: no — The documented end of the loop is a git commit in your local repo; no page on the site describes deploying, pushing a release or publishing to an environment.](https://aider.chat/)

[View Aider](https://theagentsindex.com/aider)

### 5. Muse Code

Meta's terminal and CI coding agent, built on the Muse Spark model.

**Where it improves on Junie by JetBrains:**
- [Open source: partial — The client SDK and the MSP protocol declarations are MIT-licensed and public; the muse CLI itself ships as a prebuilt native binary with no published source.](https://github.com/meta-models/muse-code-sdk)
- [Admin controls: yes — Administrators can validate and apply managed defaults and policy documents and point the agent at a centrally administered hooks file, on top of per-session permission profiles.](https://dev.meta.ai/docs/muse-code/configuration)

**Trade-offs against Junie by JetBrains:**
- [Reviews code: partial — Review happens inside its own runs — background reviewer and verification agents check the work — rather than as a review of a diff someone else wrote in a pull request.](https://dev.meta.ai/lp/muse-code)
- [Whole-codebase work: partial — It splits a large job across parallel subagents with optional Git worktree isolation, which fits a repository-wide migration, but the vendor documents no repository indexing and caps a tree at eight concurrent agents by default.](https://dev.meta.ai/docs/muse-code/extending)
- [Ships it: partial — It can run shell commands including git operations when you ask, but by design it stops short of committing or pushing on its own, and no deployment surface is documented.](https://dev.meta.ai/docs/muse-code/configuration)

[View Muse Code](https://theagentsindex.com/muse-code)

### 6. Junie

JetBrains coding agent for the terminal, JetBrains IDEs and CI, running on hosted or your own model keys.

**Where it improves on Junie by JetBrains:**

**Trade-offs against Junie by JetBrains:**
- [Ships it: partial — It reaches further than a diff, committing, pushing branches and opening pull requests through the GitHub Action, but no deployment or release step is documented anywhere on the site.](https://junie.jetbrains.com/docs/junie-on-github.html)
- [Pooled budget: partial — It splits: the included allowance is per seat and resets per seat, while separately purchased top-up credits are pooled across the organisation's licences.](https://lp.jetbrains.com/ai-ides-faq/)
- [Single sign-on: partial — SAML-style single sign-on with SCIM provisioning is real but sits behind the enterprise tier; the free and individual paid plans are crossed out on that row.](https://www.jetbrains.com/ai-ides/buy/)

[View Junie](https://theagentsindex.com/junie)

### 7. Kilo Code

Open source AI coding agent for VS Code, JetBrains, CLI and cloud, with 500+ models at provider rates.

**Where it improves on Junie by JetBrains:**
- [In a browser: yes — Cloud Agents are driven from a browser dashboard, and there is a Slack surface.](https://kilo.ai/)
- [Open source: yes — VS Code extension, JetBrains plugin and CLI are MIT; the Gateway and Cloud backend are source available rather than MIT.](https://kilo.ai/open)
- [MCP server: yes — First-class MCP client with a marketplace and private org servers.](https://kilo.ai/)

**Trade-offs against Junie by JetBrains:**
- [Ships it: partial — Cloud Agents commit and push to a session branch and raise pull requests; the vendor names deployments only in a comparison claim, and documents no deploy pipeline.](https://kilo.ai/cloud)
- [Agent permissions: partial — Auto-approve exists, but the OS-level sandbox that bounds it is experimental and Linux/macOS only.](https://kilo.ai/enterprise)
- [API access: partial — Cloud Agent sessions can be launched by HTTP webhook and usage data has documented OpenAPI endpoints; no public API for driving the agent itself is documented.](https://kilo.ai/cloud)

[View Kilo Code](https://theagentsindex.com/kilo-code)

### 8. Letta

Stateful agent harness, cloud and SDK for agents with persistent, git-versioned memory.

**Where it improves on Junie by JetBrains:**
- [In a browser: yes — chat.letta.com serves cloud-hosted agents only; self-hosted agents are not reachable there.](https://docs.letta.com/reference/faq/index.md)
- [Self-hosted: yes — Local runtime keeps all state on-device with no account, or run the App Server via Docker, Railway or Fly.io.](https://docs.letta.com/self-hosting/index.md)
- [Open source: yes — The harness and Agent SDK are Apache-2.0 on GitHub; Letta Cloud itself is a hosted proprietary service.](https://docs.letta.com/llms.txt)

**Trade-offs against Junie by JetBrains:**
- [Whole-codebase work: partial — Subagents read across large repositories and memory persists project knowledge, but no repo-wide migration claim.](https://docs.letta.com/configuration/subagents/index.md)
- [Ships it: partial — Commits, pushes and opens pull requests; it cannot approve PRs and no deployment step is claimed.](https://docs.letta.com/platform/github-action/index.md)
- [MCP server: no — MCP runs inbound only: Letta sessions consume stdio, HTTP and SSE MCP servers; no Letta MCP server is published.](https://docs.letta.com/agent-sdk/mcp/index.md)

[View Letta](https://theagentsindex.com/letta)

### 9. Google Antigravity CLI

Terminal agent (agy) that runs Google Antigravity coding agents and parallel subagents.

**Where it improves on Junie by JetBrains:**
- [Admin controls: yes — Administrators gate third-party models and developer tooling per region in Google Cloud, on top of the per-developer allow, ask and deny permission rules.](https://antigravity.google/docs/enterprise)

**Trade-offs against Junie by JetBrains:**
- [Reviews code: partial — The diff viewer opens workspace changes, agent turns and any commit in the repository for line-level comments, but review is a human reading diffs to steer the agent; no pull-request or reviewer workflow is documented.](https://antigravity.google/docs/cli/commands/diff)
- [Ships it: partial — The agent executes local shell commands under your permission rules, so it can run deploy scripts you authorise, but no release, CD or environment-promotion feature is documented anywhere in the CLI docs.](https://antigravity.google/docs/cli/features)
- [Runs autonomously: partial — Unattended execution is possible but off by default: the CLI ships in request-review mode and only an explicit always-proceed flag or preset removes the human from the loop.](https://antigravity.google/docs/cli/headless)

[View Google Antigravity CLI](https://theagentsindex.com/antigravity-cli)