Devlens
For React and Next.js developers: Devlens visualizes your codebase as an interactive graph, revealing architecture and dependencies instantly.
Built by Hanum · Artificial Intelligence · Developer Tools · SaaS · Freemium
In category: #481 of 2047 · Artificial Intelligence
Devlens is a Community listing on Launch Llama with 64 total upvotes, founded by Hanum who joined in May 2026, compared against 6 alternatives.
Community listing
Listing status
64upvotes
Community score
Hanum (Joined May 2026)
Founder
Compared against 6 alternatives
Market comparison
Launched on Launch Llama May 5, 2026 · #1 of 13 that day
About
Devlens turns your React and Next.js codebase into an interactive visual graph, helping you understand architecture, dependencies, and feature flows without digging through files. It’s especially useful for onboarding and PR reviews, where understanding the impact of changes is critical.
Competitors: Nx Console, Depcheck, Bit, Relay, CodeSandbox
Key Features
- Visualize React and Next.js codebases as interactive dependency graphs
- Explore architecture and component relationships without manual file navigation
- Identify code impact and change dependencies during pull request reviews
- Accelerate developer onboarding with visual codebase structure
- Trace feature flows across your application layers
Use Cases
- Visualize React/Next.js codebases as interactive graphs to identify architectural bottlenecks and circular dependencies
- Use the dependency visualization during PR reviews to show reviewers exactly which components and modules are affected by proposed changes
- Onboard new developers faster by giving them an interactive visual map of your codebase architecture instead of forcing them to read through scattered files
- Explore feature flows visually to understand how data and logic move through your React components without manually tracing imports
- Analyze your Next.js app structure to identify unused code, isolate feature boundaries, and plan refactoring efforts with confidence
Who it is for
- React and Next.js developers working on TypeScript or JavaScript codebases.
- Engineers onboarding onto unfamiliar multi-language repositories in Python, Java, Go, or Rust.
- Teams using AI coding agents who want structural codebase context via MCP or an Agent Skill.
Pricing
Devlens offers a free plan plus paid tiers. See the website for current pricing.
FAQ
What is Devlens?
For React and Next.js developers: Devlens visualizes your codebase as an interactive graph, revealing architecture and dependencies instantly.
How does Devlens work?
Devlens turns your React and Next.js codebase into an interactive visual graph, helping you understand architecture, dependencies, and feature flows without digging through files. It’s especially useful for onboarding and PR reviews, where understanding the impact of changes is critical.
Who is Devlens for?
Devlens is designed for a range of users, including: • React and Next.js developers working on TypeScript or JavaScript codebases. • Engineers onboarding onto unfamiliar multi-language repositories in Python, Java, Go, or Rust. • Teams using AI coding agents who want structural codebase context via MCP or an Agent Skill.
What can you do with Devlens?
With Devlens you can: • Visualize React/Next.js codebases as interactive graphs to identify architectural bottlenecks and circular dependencies. • Use the dependency visualization during PR reviews to show reviewers exactly which components and modules are affected by proposed changes. • Onboard new developers faster by giving them an interactive visual map of your codebase architecture instead of forcing them to read through scattered files. • Explore feature flows visually to understand how data and logic move through your React components without manually tracing imports. • Analyze your Next.js app structure to identify unused code, isolate feature boundaries, and plan refactoring efforts with confidence.
Is Devlens free?
Yes. Devlens offers a free plan plus paid tiers. See the website for current pricing.
What are the best Devlens alternatives?
Devlens positions itself as an alternative to Nx Console, Depcheck, Bit, Relay and CodeSandbox. In its own words: "For React and Next.js developers: Devlens visualizes your codebase as an interactive graph, revealing architecture and dependencies instantly."
Alternatives
TrendingDevToolsFor developers: TrendingDevTools curates 71+ dev tools and AI software across frameworks and databases so you discover the best solutions for your tech stack.
JavaScript ToolsFor developers: JavaScript Tools provides privacy-first utilities for code formatting, JSON inspection, and test fixture generation so you work faster locally.More in Artificial Intelligence
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Supporters
27 founders
27 founders supported Devlens on Launch Llama.
Reviews
5.0 · 3 reviews · 4 comments
Also Many people told me that the blast radius feature is the MOAT of devlens as it is really helpful in the PR review.
replying to Launch Llama: I noticed that my friends and other developers who are using tools like cursor and claude code are facing the blackbox issue, that is even though the LLM writes good code but they dont know how the LLM has written code basically they dont have understanding of their own codebase due to which debugging takes lots of time, So to solve this I thought of building codebase visualizer which does not utilizes much tokens and gives clear understading of the Codebase.
Replying to SlipStream : Mermain Diagrams are good for understanding static and small part of codebase. What I’m trying to solve is more around navigating and reasoning about larger, evolving systems in a more interactive way. The feature of the PR review and blast radius are something which of c claude can do but it takes huge amount of tokens, even if in a team a new dev comes, he can understand the codebase via devlens much better as compared to exhausting token limits of claude.
How does this compare to asking claude for mermaid diagrams?
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