Why this comparison matters
Cline, Continue and Aider are all open source under Apache-2.0, and all three let you bring your own model. None of them charges you for the software. You pay for tokens, either through an API key or by running a local model. If you want an AI coding assistant without a $20 to $40 per seat subscription, these three are the usual shortlist.
They differ in where they run and how they edit code. Their futures look very different too. Cline is an agent that lives in VS Code, a CLI, a desktop app and JetBrains. Continue is an IDE assistant with chat, edit, agent and autocomplete modes, and Cursor has since acquired it. Aider is a terminal pair programmer built around git. The right pick depends on where you write code, and on how much it matters to you that the project is still actively developed.
Scores below come from scored.tools' published ratings for each tool, which are based on public evidence such as GitHub activity, documentation and vendor pricing pages. They are not hands-on benchmarks.
Feature comparison table
| Cline | Continue | Aider | |
|---|---|---|---|
| scored.tools rating | 8.2 | 6.0 | 7.6 |
| Licence | Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Where it runs | VS Code extension, CLI, desktop app (macOS, Windows), JetBrains plugin | VS Code and JetBrains extensions, CLI (cn) | Terminal, with an IDE watch mode that picks up requests from code comments |
| Main modes | Agent, multi-agent teams, scheduling | Agent, chat, edit, inline autocomplete | Chat-driven edits, voice-to-code, web chat copy-paste workflow |
| Model support | Claude, GPT, Gemini, Ollama, LM Studio, any OpenAI-compatible endpoint | Bring your own LLM API | Claude, DeepSeek, OpenAI, Gemini and local models, per the README |
| Extensibility | MCP Marketplace, SDK, lifecycle hooks | No separate API or wider integrations listed | No separate programmatic API documented |
| Git handling | Standard workspace edits | Standard workspace edits | Auto-commits each change with a descriptive message |
| Lint and test loop | Via agent tool calls | Via agent mode | Runs linters and tests and fixes reported problems |
| GitHub stars | About 69.6k | n/a (project acquired) | About 49.5k |
| Open issues | 1,489 | n/a | 1,902 |
| Project status | Active, with an Enterprise tier | Acquired by Cursor; codebase remains available | Active community project |
Criteria scores
| Criterion | Cline | Continue | Aider |
|---|---|---|---|
| Output quality | 8 | 5 | 8 |
| Ease of use | 8 | 6 | 8 |
| Pricing value | 8 | 8 | 8 |
| API and integration | 9 | 6 | 6 |
| Problem fit | 8 | 5 | 8 |
The pricing value scores are tied because all three are free and leave the model bill to you. The gaps are in integration, where Cline's MCP support and SDK put it clearly ahead, and in output quality and problem fit, where Continue's uncertain status drags it down.
Cline
Cline is the broadest of the three. It works as a VS Code extension, a CLI, a desktop app or a JetBrains plugin, and it connects to almost any provider, including local models through Ollama or LM Studio. Its MCP Marketplace and SDK let you add custom tools and lifecycle hooks, which matters if you want the agent to reach your issue tracker, database or internal APIs. Cline also lists multi-agent teams and scheduling, which pushes it toward background automation rather than chat in a sidebar.
There's one wrinkle. The Cline site lists a JetBrains plugin, yet the pricing page puts the JetBrains extension in the Enterprise column. If JetBrains is your main IDE, confirm what the free tier covers before you commit.
Continue
Continue covers the classic IDE assistant pattern well on paper: inline autocomplete, an edit mode that works inside the file, chat for questions about code, and an agent mode for larger tasks. It's the only one of the three with tab autocomplete as a headline feature, and it supports VS Code and JetBrains equally.
The problem is direction. Continue's homepage now says Cursor has acquired it, and that the open source codebase "remains freely available as a foundation for others." The page doesn't describe a roadmap or ongoing development. You can still install and fork it, but you should expect to maintain it yourself or rely on community forks. The only independent quality evidence scored.tools found is a single agent-finder.co review, which gives it an average of 7.4/10 across coding tasks.
Aider
Aider runs in the terminal, inside your repo. You install it with pip, run aider with a model and key, and talk to it. It builds a map of the whole repository so it can work in larger codebases. Every change becomes a git commit with a descriptive message, so you review edits with git diff and back them out with git reset. It also runs your linters and tests after a change and tries to fix what they report.
Extras include voice-to-code, adding images and web pages as context, and a watch mode that picks up instructions you leave as comments in your editor. There is no GUI, and no documented programmatic API beyond the CLI.
Pricing comparison
| Plan | Cline | Continue | Aider |
|---|---|---|---|
| Free tier | Open Source: free, pay for inference at cost or bring your own key | Open source: free, bring your own LLM API | Free, bring your own API key or local model |
| Paid individual | ClinePass, listed at $9.99/month | None found | None |
| Team | Enterprise, custom pricing | Hub, from $20/user/month according to pricepertoken.com (status after the acquisition unclear) | None |
| Enterprise extras | SSO, SLA, RBAC, centralised billing, dedicated support, provider limits, audit logs | Unclear | None |
On all three, the real cost is your model spend. A heavy agent session on a frontier model can cost more in tokens than a month of a flat-rate editor subscription, and nothing on the free paths caps that for you. Cline is the only one with a product aimed at that problem. ClinePass is a flat $9.99/month subscription, and Cline says it gives 2 to 5 times the usage on popular models. The pricing page links to ClinePass but doesn't spell out the details there, so check the terms before you treat it as a cap on spend.
For organisations, Cline is the only option with a real procurement path. Its Enterprise tier adds SSO, role-based access control, centralised billing, a team dashboard and the ability to limit which inference providers developers can use. The FAQ also mentions SCIM, audit logs, VPC deployments and OpenTelemetry. Aider has no commercial tier at all. Continue's paid plans now sit under an acquired company, and its homepage FAQ raises the question of what happens to subscriptions without answering it in the visible text.
If you want the cheapest possible setup, all three work with local models. Aider and Cline document Ollama and other local backends directly, and Continue accepts any LLM API you point it at.
Use case scenarios
You work in VS Code and want an agent that does multi-step tasks: pick Cline
Cline's agent, MCP tools and multi-root workspace support are aimed at this. It has the widest model support and the most active project of the three, and it's the only one with a paid path if your company later wants SSO and central billing.
You live in the terminal and care about clean git history: pick Aider
Aider's auto-commit design gives you one reviewable commit per change, and its lint-and-test loop catches broken edits early. It works alongside any editor, including Vim, Emacs or Zed, because it doesn't depend on an extension API. If you already review everything through git, Aider fits your workflow better than either IDE tool.
You want inline autocomplete in JetBrains from an open source tool: Continue, with caveats
Continue is the only one of the three built around tab autocomplete, and its JetBrains extension is part of the free tier. Use it if you accept that development has stopped at the vendor and you may need to pin a version or move to a fork. For a new team rollout, the acquisition makes it hard to recommend.
You run a team that needs governance: pick Cline
Cline's Enterprise plan is the only tier here with RBAC, SSO, audit logs and provider restrictions. Aider has none of these, and Continue's team offering is in limbo.
You want to script or automate code changes: Cline, then Aider
Cline's SDK, hooks and scheduling make it the stronger base for automation. Aider can be scripted through its CLI, but it doesn't document a separate programmatic API.
Verdict
Best overall: Cline (8.2). It runs in the most places, connects to the most models and tools, and has the clearest support path from solo developer to enterprise. The main thing to watch is your inference bill.
Best for terminal users: Aider (7.6). It does one job well. Git-native edits, repo mapping and automatic lint and test fixes make it the pick for developers who already work in the shell and want every AI change to be a commit they can inspect.
Continue (6.0) is a hold, not a buy. The feature set is solid and the code is still free under Apache-2.0. Since Cursor acquired the company, though, there's no visible roadmap, so treat it as a codebase you might fork rather than a product you can depend on. If you need IDE autocomplete with ongoing support, look at paid editor tools, or run Cline for agent work alongside your IDE's own completion.
