# AI tools for “Plugin Engine” 223 matching tools; showing 24, ranked by relevance. Filters: `group=coding-development` | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | One AI assistant that plugs ChatGPT, Claude and Gemini into every tab | keywords 100%; semantic match | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) | | 2 | [Qoder](https://openaitools.app/tool/qoder) | 5,145,040 | +81.8% | Freemium, Free Trial, Free | An agentic coding platform that ships real software | keywords 60%; semantic match | [.md](https://openaitools.app/tool/qoder.md) | | 3 | [Verdent Deck](https://openaitools.app/tool/verdent-deck) | 374,943 | -17.5% | Paid | Agentic coding with parallel AI agents that build and ship real products | keywords 60%; semantic match | [.md](https://openaitools.app/tool/verdent-deck.md) | | 4 | [Ponytail](https://openaitools.app/tool/ponytail) | 117,860 | -3.9% | Free | A ruleset that makes AI coding agents write the least code that works | keywords 60%; semantic match | [.md](https://openaitools.app/tool/ponytail.md) | | 5 | [VS Code](https://openaitools.app/tool/vs-code) | 7,397,370 | -3.8% | Freemium | Write code with precision, hand bigger jobs to agents, and keep working from anywhere | semantic match | [.md](https://openaitools.app/tool/vs-code.md) | | 6 | [T3 Code](https://openaitools.app/tool/t3-code) | 1,071,866 | +52.5% | Free | Open-source control plane for orchestrating coding agents | semantic match | [.md](https://openaitools.app/tool/t3-code.md) | | 7 | [Pi Coding Agent](https://openaitools.app/tool/pi-coding-agent) | 1,929,244 | +4% | Free | A minimal, extensible terminal coding agent you can reshape | semantic match | [.md](https://openaitools.app/tool/pi-coding-agent.md) | | 8 | [ChatHub](https://openaitools.app/tool/chathub) | 322,618 | -13.9% | Freemium | Compare GPT, Claude, and Gemini answers side by side in one chat | semantic match | [.md](https://openaitools.app/tool/chathub.md) | | 9 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | One-click AI assistant for browsing, writing and research | semantic match | [.md](https://openaitools.app/tool/merlin-ai.md) | | 10 | [Tabnine](https://openaitools.app/tool/tabnine) | 70,323 | -36.4% | Freemium, Free Trial, Paid | Privacy-first AI code completion and chat for your IDE | keywords 60%; semantic match | [.md](https://openaitools.app/tool/tabnine.md) | | 11 | [Impeccable](https://openaitools.app/tool/impeccable) | 1,038,637 | +8.2% | Free | Give your coding agent real design judgment | semantic match | [.md](https://openaitools.app/tool/impeccable.md) | | 12 | [Revocalize AI](https://openaitools.app/tool/revocalize-ai) | 20,941 | -29.7% | Freemium | Studio-level AI voice generation, transformation and beautification for music creators | keywords 60%; semantic match | [.md](https://openaitools.app/tool/revocalize-ai.md) | | 13 | [CopilotKit](https://openaitools.app/tool/copilotkit) | 403,148 | +199.4% | Freemium | Open-source frontend stack for building AI agents and copilots inside your own product | semantic match | [.md](https://openaitools.app/tool/copilotkit.md) | | 14 | [Mochii](https://openaitools.app/tool/mochii) | 26,988 | -20% | Freemium | One AI sidebar for ChatGPT, Claude and Gemini across the web | keywords 60%; semantic match | [.md](https://openaitools.app/tool/mochii.md) | | 15 | [CodeGPT](https://openaitools.app/tool/code-gpt) | 170,064 | -19% | Freemium, Paid, Contact for Pricing | AI coding agent for VS Code, JetBrains and Visual Studio with bring-your-own-key model freedom | semantic match | [.md](https://openaitools.app/tool/code-gpt.md) | | 16 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | AI detector, plagiarism and content-quality checks in one scan | keywords 60% | [.md](https://openaitools.app/tool/originality.md) | | 17 | [Nimbalyst](https://openaitools.app/tool/nimbalyst) | 206,980 | -11.5% | Freemium, Free | Agent wiki and visual workspace for Claude Code and Codex | semantic match | [.md](https://openaitools.app/tool/nimbalyst.md) | | 18 | [Coze (扣子)](https://openaitools.app/tool/%E6%89%A3%E5%AD%90) | 1,851,850 | -16.4% | Freemium | Hand your work to an AI colleague that can actually use your computer, cloud server, and phone | keywords 60% | [.md](https://openaitools.app/tool/%E6%89%A3%E5%AD%90.md) | | 19 | [Fellou AI Browser](https://openaitools.app/tool/fellou-ai-browser) | 31,007 | -13.8% | Free Trial, Contact for Pricing | The agentic AI browser that plans, researches and executes web and desktop tasks | semantic match | [.md](https://openaitools.app/tool/fellou-ai-browser.md) | | 20 | [Command Code](https://openaitools.app/tool/command-code) | 2,358,177 | -12.1% | Freemium, Contact for Pricing | The coding agent that learns your coding taste | keywords 60% | [.md](https://openaitools.app/tool/command-code.md) | | 21 | [AI Power (AI Puffer)](https://openaitools.app/tool/ai-power) | 4,687 | -11.2% | Freemium | Manage WordPress from ChatGPT or Claude | keywords 60%; semantic match | [.md](https://openaitools.app/tool/ai-power.md) | | 22 | [Continual Engine (CE)](https://openaitools.app/tool/continual-engine-ce) | 16,625 | -40.5% | Contact for Pricing | AI-led digital accessibility for documents, images, video and websites | semantic match | [.md](https://openaitools.app/tool/continual-engine-ce.md) | | 23 | [ERNIE Agent Platform (AgentBuilder)](https://openaitools.app/tool/ernie-agent-platform) | 371,311 | +9.3% | Contact for Pricing | Baidu's one-stop platform for building, distributing and monetizing AI agents | keywords 60% | [.md](https://openaitools.app/tool/ernie-agent-platform.md) | | 24 | [Kombai](https://openaitools.app/tool/kombai) | 85,231 | -17% | Freemium, Paid, Contact for Pricing | AI design engineer that ships production-ready frontend | semantic match | [.md](https://openaitools.app/tool/kombai.md) | Page 1 of 10 · [Next page →](https://openaitools.app/index.md?q=Plugin+Engine&group=coding-development&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=Plugin%20Engine More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)