Alternatives to Blackbox

Turn up to 3 reference images into editable, live-previewed Three.js model code right in your browser.

AI model router and code context engine that cuts agent token spend by grounding requests in your codebase and routing to right-sized

Multi-agent AI coding assistant for VS Code, launching soon

Production-code-trained coding AI for maintainable software, with CLI and cloud

Open-source dev platform uniting AI, NoCode, Code, and reusable MicroApps.

AI code completion and agentic coding with multi-model flexibility

Pioneering open-source AI coding agent for VS Code and JetBrains, now archived after Cursor acquisition.

Free AI code autocomplete, chat, and agent coding in your IDE

Spec-driven AI coding platform that turns prompts into tested, production-ready code with parallel agents.

AI coding assistant with deep codebase context for enterprise teams

Research-grade code models with 5M-token context for automating software engineering

Deterministic code change at scale with Lossless Semantic Trees

AI code assistant for React, Vue, and Tailwind devs, embedded in VS Code and JetBrains IDEs

Defunct AI search engine for developers with cited answers and code snippets

Autonomous AI software engineer that plans, writes, tests, and ships production code end-to-end.

Terminal-based AI pair programming with Git-native workflows and codebase-wide awareness

Fast Rust-based code editor with multiplayer collaboration and agentic AI coding.

Free, open-source AI code assistant for JetBrains IDEs with spec-driven development

Open-source ruleset that makes AI coding agents write minimal, pragmatic code.

Multi-project, multi-agent desktop IDE where every repo and Claude/Codex/Gemini session stays open at once.

Open-source AI agent skills for CAD, CAE, and CAM from text or images.

Turn screenshots and Figma designs into clean frontend code with AI.

Z.ai: Free AI assistant for presentations, writing, coding, and the ZCode agentic IDE.

AI search engine for developers that answers code questions with citations

AI code editor that auto-routes to the best model and ships an autonomous coding agent.

Free open-source VSCode extension for one-click AI code comments, conversions, and UI-to-code

Agentic AI for the entire DevSecOps lifecycle in GitLab.

Glamourous agentic coding in your terminal, wired to your own LLM of choice.

Open-weight agentic coding models for secure on-prem enterprise AI

Build and deploy full-stack apps from natural language with Replit Agent