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Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Eraser records 534,396 monthly visits with -23.6% growth and Freemium, Paid, Contact for Pricing pricing.
Battle-test AI coding models side by side
AI diagrams and technical design docs built from your code and systems
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | eraser.io |
| Pricing Model | Free | Freemium, Paid, Contact for Pricing |
| Monthly Visits | 35.83M (35,827,928) | 534.4K (534,396) |
| MoM Traffic Delta | +5.83M (+19.4%) | -164.9K (-23.6%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇮🇳 India (39.6%) |
| Direct Visits / mo | 24.34M | 267.66K |
| User Rating | 4.7 | 4.6 |
| Supported Platforms | Website | Website |
Battle-test AI coding models side by side
Send the same coding prompt to multiple leading models and compare their generated apps and logic side by side.
Watch models construct web apps and websites live, so you can see process and output, not just the final file.
Projects go beyond one-off snippets, testing how well a model structures components, routes, and styles together.
Track which coding models accumulate the most wins over time to identify consistently strong performers.
AI diagrams and technical design docs built from your code and systems
Generate architecture diagrams, flowcharts, sequence diagrams, and BPMN from a text prompt, code, Terraform, or an uploaded PDF, Word, Excel, PowerPoint, Draw.io, or Visio file.
Build interactive maps that sync with cloud accounts, repositories, and internal catalogs so the picture stays close to the real environment, with drill-down from org level to a single container.
Paste code or connect private and public Git repositories, Confluence, Notion, VS Code, and GitHub to keep diagrams grounded in actual implementation.
Run the agent toolkit in your own infrastructure under an MIT license and let MCP-compatible clients create, search, update, and export diagrams with OAuth or API tokens.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.
Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.
An AI-powered visual workspace where teams think, plan, and build together
Build and share random generators for free with lists and simple code
Build and share random generators for free with lists and simple code
The AI coding agent for building ambitious software
The AI coding agent for building ambitious software
Anthropic's AI assistant for real work, from chat to agents
Build working apps, websites, and AI agents by describing them
Build working apps, websites, and AI agents by describing them
Describe your idea and Replit builds a working app in minutes
An agentic coding platform that ships real software
Google's AI tool for generating mobile and web UI designs from prompts
A spec-driven AI IDE and agent platform that plans, builds, reviews, and verifies real engineering work.
A spec-driven AI IDE and agent platform that plans, builds, reviews, and verifies real engineering work.
Prompt to working full-stack web app, published in seconds
