Windsurf costs $20/mo.
These cost $0.
6 free alternatives to Windsurf, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
Windsurf vs Free Alternatives Matrix
Quick side-by-side comparison · $0/mo vs $20/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| OpenCode | open source | MIT | Local | ★ 194k | Windsurf vs OpenCode → |
| Zed | open source | GPL-3.0+ | Local | ★ 88k | Windsurf vs Zed → |
| Cline | open source | Apache-2.0 | Local | ★ 66k | Windsurf vs Cline → |
| Goose | open source | Apache-2.0 | Local | ★ 52k | Windsurf vs Goose → |
| Aider | open source | Apache-2.0 | Local | ★ 48k | Windsurf vs Aider → |
| Kilo Code | open source | — | — | ★ 27k | Windsurf vs Kilo Code → |
The picks
6 open source · ranked by fit
- 01
OpenCode
open sourceMITLocal194kaug 2026A fast local coding agent with no loyalty to any model vendor.
The catch vs WindsurfIt is terminal-first and gives up Windsurf's graphical editor, inline completion and visual multi-file patch review.
Install, platforms & data +
- platforms
- desktopclione-click install
- install
- Install script, Homebrew or npm
- setup
- Terminal comfort and a provider API key or local model server are required
- engines
- Dozens of providers through AI SDK and Models.dev, including hosted APIs and local OpenAI-compatible or Ollama-style backends
- your data
- Source files stay local; credentials are stored under the user's OpenCode data directory and configuration under the config directory, while prompts and context go to the selected provider
- checked
- 2026-08-10
- 02
Zed
open sourceGPL-3.0+Local88kaug 2026A fast open editor with agents built in, not a VS Code costume.
The catch vs WindsurfIt requires moving to a different editor and is less centered on Windsurf's reviewed multi-file patch and Cascade-style workflow.
Install, platforms & data +
- platforms
- desktopone-click install
- install
- Direct desktop download, Homebrew, winget or install script
- setup
- Editor installation is clean; AI needs a Zed account, provider subscription or key, gateway, or local model, and platform hardware support varies
- engines
- Zed-hosted models, provider API keys or subscriptions, OpenRouter, Vercel AI Gateway, Bedrock, Ollama, LM Studio, OpenAI-compatible local servers and external ACP agents
- your data
- Source files stay local; provider keys use the system keychain, while AI prompts and code context go to the selected provider or local model
- checked
- 2026-08-10
- 03
Cline
open sourceApache-2.0Local66kaug 2026A code agent in your editor; the model bill is still yours.
The catch vs WindsurfIts approval-heavy extension workflow is less seamless than Windsurf's editor-native autocomplete and reviewed multi-file patch experience.
Install, platforms & data +
- platforms
- desktopcliextensionone-click install
- install
- VS Code or JetBrains extension, or npm-installed CLI
- setup
- Sign in for Cline inference, bring an API key, or run and configure a local model
- engines
- Anthropic Claude, OpenAI GPT, Google Gemini, OpenRouter, Bedrock, Azure, Vertex, Cerebras, Groq, Ollama, LM Studio and OpenAI-compatible endpoints
- your data
- Code stays in the working repository and task data is stored locally; prompts and selected code context go to the chosen provider unless a local backend is used
- checked
- 2026-08-10
- 04
Goose
open sourceApache-2.0Local52kaug 2026A desktop agent that edits and runs code without pretending the model is free.
The catch vs WindsurfIt lacks Windsurf's full editor, inline completion and graphical patch-review workflow.
Install, platforms & data +
- platforms
- desktopclione-click install
- install
- Desktop installer or curl-installed CLI
- setup
- A provider subscription, API key or local model must be connected before the agent can work
- engines
- Anthropic, OpenAI, Google, Ollama, OpenRouter, Azure, Bedrock and other providers; ACP can use supported model subscriptions
- your data
- Code and files stay local; sessions and configuration are stored in Goose application data, while prompts and context go to the selected provider unless local
- checked
- 2026-08-10
- 05
Aider
open sourceApache-2.0Local48kmay 2026It edits the repo from a terminal and commits its own mess.
The catch vs WindsurfIt is terminal-only, without Windsurf's native editor autocomplete, graphical multi-file patch review and integrated browsing workflow.
Install, platforms & data +
- platforms
- desktopclione-click install
- install
- Install with aider-install, pipx or uv, then run it inside a Git repository
- setup
- Terminal use, a Git repository and an API key or local model runtime
- engines
- Claude, OpenAI, DeepSeek, Gemini, open-weight and local models through LiteLLM-compatible providers
- your data
- Repository files and Git commits stay local; optional chat and input history is local, while prompts and repository context go to the selected model provider
- checked
- 2026-08-10
- 06
Kilo Code
open source27kaug 2026One open agent across VS Code, JetBrains and the terminal; inference still has a meter somewhere.
Install, platforms & data +
- platforms
- desktopcliextensionone-click install
Frequently Asked Questions
Direct answers · Windsurf open-source replacements
What is the best free alternative to Windsurf?+
The top free alternative to Windsurf is OpenCode (open source, MIT). A fast local coding agent with no loyalty to any model vendor. Other popular Windsurf replacements include Zed, Cline, Goose.
How much does switching from Windsurf to a free alternative save?+
Windsurf starts at $20/month per seat ($240/year). Switching a 5-person team to a free alternative like OpenCode saves $1,200 per year in software subscription fees.
Should I vibe-code or build my own Windsurf clone from scratch?+
Our build verdict for Windsurf is NOT REALLY (use a free alternative, save the tokens). A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Windsurf, build a VS Code extension that proposes and applies reviewed multi-file patches. The hard boundary is proprietary coding models, agent context, ide integration, and hosted inference, plus frontier models, context infrastructure, and execution safety.
What is the catch when switching from Windsurf to OpenCode?+
It is terminal-first and gives up Windsurf's graphical editor, inline completion and visual multi-file patch review.
