AI · alternatives · 2026

Windsurf is an AI-powered IDE built by Codeium as a VSCode fork. It features fast autocomplete, native inline diff generation, and Cascade, an agentic chat tool that reasons about codebases, runs terminal commands, and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Windsurf – Agentic IDE launched in 2024; newer entries below may have overtaken it.

1. 1
   Exafunction NLP – Run models like GPT-J for 6x cheaper than OpenAI▲45

   Windsurf is the world's most advanced AI coding assistant for developers and enterprises. Windsurf Editor — the first AI-native IDE that keeps developers in flow.

   2021 · exafunction.com · its alternatives →

2. 2
   Windsurf Wave 9 ▲362

   Our frontier models built for engineering, not just code

   2025 · devin.ai · its alternatives →

3. 3
   Notte Browser Agents▲275

   Hey HN, We’ve been building browser agents for a while. In production, we kept converging on the same pattern: deterministic scripts for the happy path, agents only for edge cases. So we built Demonstrate Mode. The idea is simple: You perform your workflow once in a remote browser. Notte records the interactions and generates deterministic automation code. How it works: - Record clicks, inputs, navigations in a cloud browser - Compile them into deterministic code (no LLM at runtime) - Run and deploy on managed browser infrastructure Closest analog is Playwright codegen but: - Infrastructure…

   2025 · notte.cc · its alternatives →

4. 4CA
   Codeium – a free, fast AI codegen extension▲86

   I'm Varun, CEO of Exafunction, and we just released Codeium to open up access of generative AI to all developers for free. In the spirit of Show HN, we created a playground version for anyone to try this tech in the browser (click Try in Browser)! We have built scalable, low-latency ML infra for many top AI companies in the past, and we are excited to leverage that tech into a product that we, as developers, would love. We hope that you do too, and we would appreciate any feedback that this community has for us!

   2022 · codeium.com · its alternatives →

5. 5
   Basin MCP▲168

   tl;dr - try Basin AI with Cursor/Windsurf, instruction here (https://mcp.basin.ai), and use API key hackernews to gain access. Hey HN — I’m Henry, co-founder of Basin, and I wanted to share something we’ve been working on called Basin MCP, a kind of QA infrastructure for AI coding copilots like Cursor, Windsurf, etc. We built Basin because we kept noticing the same thing: agentic coding tools are great at generating code, but have no idea if the thing they built actually works — or even matches the original intent, and so they're prong to hallucinations. Basically, they have…

   2025 · mcp.basin.ai · its alternatives →

6. 6
   Budibase 2.0▲381

   Hi there, Mike here from Budibase. We’ve recently launched AI Agents into Beta, alongside our existing open-source app-building and automation tools. We built Budibase Agents for teams that want to leverage AI within real-world workflows, using their own LLMs, data, and APIs. Because of this, our Agents can be powered by any LLM with an OpenAI-compatible API, including open-source and locally-hosted models. This means you can build Agents that connect to your existing toolstack, within your own environment. Some more details: - Agents' behavior is configured using natural language…

   2022 · budibase.com · its alternatives →

7. 7FL
   Free local security checks for AI coding in VSCode, Cursor and Windsurf▲43

   Hi HN! We just launched Codacy Guardrails, an IDE extension with a CLI for code analysis and MCP server that enforces security & quality rules on AI-generated code in real-time. It hooks into AI coding assistants (like VS Code Agent Mode, Cursor, Windsurf), silently scanning and fixing AI-suggested code that has vulnerabilities or violates your coding standards, while the code it’s being generated. We built this because coding agents can be a double-edged sword. They do boost productivity, but can easily introduce insecure or non-compliant code. One recent research team at NYU found that 40%…

   2025 · its alternatives →

8. 8
   Tmux-IDE, OSS agent-first terminal IDE▲88

   Hey HN, Small OSS project that i created for myself and want to share with the community. It's a declarative, scriptable, terminal-based IDE focussed on agentic engineering. That's a lot of jargon, but essentially its a multi-agent IDE that you start in your terminal. Why is that relevant? Thanks to tmux and SSH, it means that you have a really simple and efficient way to create your own always-on coding setup. Boot into your IDE through ssh, give a prompt to claude and close off your machine. In tmux-ide claude will keep working. The tool is intentionally really lightweight, because I think…

   Mar 2026 · tmux.thijsverreck.com · its alternatives →

9. 9
   Vibe Coder▲205

   Talk with AI to build products—in VS Code, Cursor, Windsurf

   2025 · github.com · its alternatives →

10. 10
    Freebuff▲310

    Free coding agents to kill Claude, Cursor, Replit, and Devin

    Aug 2026 · freebuff.com · its alternatives →

11. 11
    Windframe 2.0▲170

    AI-enhanced Tailwind CSS visual editor and builder

    2023 · windframe.dev · its alternatives →

12. 12
    Mordecai (Beta)▲142

    A browser based AI coding wingman

    2024 · mordecaiapp.com · its alternatives →

13. 13
    Smart model routing directly in Claude, Codex and Cursor▲216

    We built a model router that plugs into coding agents (e.g. Claude Code, Codex, Cursor, etc.) and intelligently sends requests to the best model to serve them. Here's a quick demo of running it locally: https://www.youtube.com/watch?v=isKhAyivtfM. At Weave, we write most of our code with AI, and it's been getting more expensive. This came to a head when Opus 4.7 was released and, thanks to its tokenizer changes, our costs shot up. We knew we didn't need Opus for everything but we didn't want to lose out on the intelligence for the cases where you really need it. So we decided…

    Jun 2026 · github.com · its alternatives →

14. 14
    FlowLens▲134

    Hi HN, We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots. FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code. You can try it here: https://magentic.ai/flowlens Any feedback—good, bad, or brutal—is welcome.

    Dec 2025 · magentic.ai · its alternatives →

15. 15CI
    CodeMatch: IDE autocomplete on overdrive▲102

    2011 · languageinterfaces.com · its alternatives →

16. 16
    Open-source browser for AI agents▲155

    Hi HN, I forked chromium and built agent-browser-protocol (ABP) after noticing that most browser-agent failures aren’t really about the model misunderstanding the page. Instead, the problem is that the model is reasoning from a stale state. ABP is designed to keep the acting agent synchronized with the browser at every step. After each action (click, type, etc), it freezes JavaScript execution and rendering, then captures the resulting state. It also compiles the notable events that occurred during that action loop, such as navigation, file pickers, permission prompts, alerts, and downloads,…

    Mar 2026 · github.com · its alternatives →

17. 17
    VibeShift MCP▲141

    Hi HN, We are the devs behind VibeShift. We have been building this MCP server to put AI coding assistants in an automatic feedback loop. They code, test, debug, fix everything until we have a fully working, secure code. It tests like a real user, copies network/console and logical errors to give them back to cursor. (1 min demo - https://www.youtube.com/watch?v=bN_RgQGa8B0) We felt this was the natural next step for AI coding assistants. And with new asynchronous assistants like codex, having a plug & play tester makes sure you don't have to spend time debugging and…

    2025 · github.com · its alternatives →

18. 18
    Finyuus▲81

    A code-first language for durable, governed AI workflows

    Aug 2026 · github.com · its alternatives →

19. 19
    Viberia▲146

    Hey HN, This is my take on the agent harness. Everything on an isometric map. Agents are grouped into "buildings" that run in a sequence or a loop; e.g., the CodeForge has an agent that writes a PRD, another one that implements, and a third that reviews. Everything is customizable, you build your own buildings/teams however you want. It's a Tauri app, really light (about 8x less energy than the closest competitor I benchmarked, so it actually runs from a coffee shop on battery). It's macOS only for now, but ping me if you are willing to test the Windows or Linux version. I've been…

    May 2026 · getviberia.com · its alternatives →

20. 20
    Code Completion, by Kite▲90

    AI-powered autocomplete engine for 13 languages and 16 IDEs

    2020 · kite.com · its alternatives →

21. 21
    WarpGrep▲114

    I review PRs all day and I've basically stopped reading them. Someone opens a 2000-line PR, I scroll, see it's mostly AI-generated React components, leave a comment, merge. I felt bad about it until I realized everyone on my team does the same thing. The problem is diffs are the wrong format. A PR might change how three buttons behave. Staring at green and red lines to understand that is crazy. The core reason we built this is that we feel that products today are built with assumptions from the past. 100x code with the same review systems means 100x human attention. Human attention cannot…

    Dec 2025 · morphllm.com · its alternatives →

22. 22
    Flare▲120

    The graph-first IDE and interactive map for agentic coding

    Aug 2026 · github.com · its alternatives →

23. 23
    Codeium: Free Copilot Alternative for Vim / Neovim▲94

    I'm Varun from the Codeium team. After support for VSCode, Jetbrains, Jupyter, and Colab, we are super excited to bring free AI-powered code autocomplete to Vim and Neovim. And in the spirit of Show HN, we have a playground version for anyone to try the tech in the browser without any installation (https://www.codeium.com/playground)! We also made the vim client open source and are open to contributions.

    2023 · github.com · its alternatives →

24. 24
    agentbrowse▲89

    Give your AI coding agent the web as a command line

    Jun 2026 · npmjs.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →