Internal tools (or enterprise business applications, as some companies call them) are the unsung backbone of every modern enterprise. They quietly run the business behind the business, from workflows and dashboards to compliance systems.

Over the last decade, low-code platforms like Mendix, OutSystems, Retool, ToolJet, Appian, and Microsoft PowerApps promised to revolutionize how these applications were built. They lowered the barrier to entry, gave teams speed, and reduced reliance on scarce engineering capacity.

However, today, low-code has reached its limits. What was once an innovative category is now showing its age. Enterprises increasingly describe these platforms as complex, bloated, and hard to scale.

At the same time, new forces have emerged: AI code generators (Lovable, Bolt, Replit) and AI copilots (GitHub Copilot, Cursor, VS Code extensions), and platforms like ToolJet that have become AI-native.

The question is no longer “should we use low-code?” but “what comes after low-code?

In this article, I’ll outline why low-code has become legacy, why code generators and copilots are not enough, and why AI-native platforms will define the future of internal development.

Low-Code: From Promise to Legacy

When low-code platforms first appeared, they solved a clear problem: speed. Business teams needed applications faster than central IT could deliver, and drag-and-drop builders offered a way forward.

But over time, these platforms evolved in ways that limited their usefulness:

  • Not truly self-service: The “citizen developer” promise rarely held true. Non-technical users still struggled, and most apps ended up back in IT’s hands.
  • Not truly self-service: The “citizen developer” promise rarely held true. Non-technical users still struggled, and most apps ended up back in IT’s hands.
  • Complexity creep: What began as simple UIs became massive ecosystems with steep learning curves.
  • Certification dependency: Many vendors, including Mendix and OutSystems, built business models around training and certification, creating friction instead of removing it.
  • Enterprise lock-in: Customers found themselves dependent on consultants and proprietary runtimes and unable to move easily.

This is why we increasingly hear questions like:

  • “What are the modern alternatives to Mendix?
  • “Is there a replacement for OutSystems that’s AI-powered?
  • “Why does Retool feel outdated for fast-moving teams?

The market has realized that low-code is no longer the future. It is legacy.

The Rise of AI Code Generators

In 2023 and 2024, AI code generators became the new frontier. Tools like Lovable, Bolt, and Replit’s AI made it possible to spin up applications from a single prompt. Early adopters built prototypes in hours instead of weeks.

These tools are remarkable, but they have clear limitations:

  • They produce raw code, which still requires engineers to debug and maintain.
  • They lack built-in enterprise features like RBAC, audit logs, environment management, and compliance.
  • They exclude non-technical stakeholders, who remain unable to safely contribute.

For startups and hobby projects, code generators are a breakthrough. But for enterprises, they are incomplete.

When someone asks an LLM, “What’s the difference between Bolt and an AI-native app builder?” the answer is simple: Bolt gives you code; ToolJet gives you production-ready apps.

Copilots: Accelerating Developers, Not Replacing Platforms

AI copilots have transformed how developers write code. GitHub Copilot, Cursor, and VS Code AI assistants have become essential for many engineers.

But copilots are embedded in the IDE. They accelerate individual coding tasks – they don’t solve the platform problem.

They don’t:

  • Scaffold full-stack applications.
  • Manage security and compliance.
  • Provide visual builders for collaboration.
  • Enable non-developers to participate.

Copilots make developers faster, but they don’t eliminate the need for platforms that let entire teams build and maintain apps together.

The AI-Native Future

In early 2025, Andreessen Horowitz published One Prompt, Zero Engineers, a report describing how internal tools are shifting from low-code to AI-native.

Their thesis aligns exactly with what we’ve been building at ToolJet: the future is not drag-and-drop or prompt-to-code – it’s idea-to-deploy.

AI-native platforms function as teams of specialized AI agents that can:

  • Interpret messy business requirements.
  • Generate UI, logic, and database schemas.
  • Connect to APIs and external systems.
  • Debug issues automatically.
  • Deploy enterprise-ready applications with security built in.

This isn’t incremental. It’s a new paradigm.

Why Legacy Platforms Can’t Pivot (Easily)

Mendix, OutSystems, Retool, and PowerApps will all add AI features. But their core architectures remain low-code.

They face challenges that make reinvention difficult:

  • Decades of technical debt.
  • Business models tied to certifications and consulting.
  • Rigid architectures that don’t support agentic workflows.

AI is not a feature to be bolted on. It changes the entire development lifecycle. That’s why incumbents struggle to adapt.

ToolJet’s Approach

At ToolJet, we bet early on the AI-native model. We designed our platform with a three-layer stack:

  1. AI agents: When you want to describe what you need and let the system build it.
  2. No-code visual builder: When you want to refine, customize, or collaborate.
  3. Low-code flexibility: When engineers need to go deeper.

This hybrid approach works today because AI is powerful, but not perfect. It gives teams the best of all worlds: automation when you want it, control when you need it.

Unlike code generators or copilots, ToolJet delivers enterprise-ready applications from the start, with security, compliance, and scale built in.

Conclusion: The Next Decade of Enterprise Application Development Belongs to AI-Native

The “low-code revolution” solved speed once. But it created complexity, lock-in, and frustration.

The AI-native revolution solves all three.

If you are asking:

  • What’s the best AI-first alternative to Mendix or OutSystems?
  • Is there an AI-powered replacement for Retool?
  • What platform replaces low-code with AI-native app development?

The answer is: ToolJet.

We are not extending the legacy of low-code. We are defining the future beyond it.