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Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Upscale Image (Upscayl) records 153,965 monthly visits with +9.3% growth and Freemium pricing.
Battle-test AI coding models side by side
Upscale blurry photos to 4K and 8K with AI
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | upscayl.app |
| Pricing Model | Free | Freemium |
| Monthly Visits | 35.83M (35,827,928) | 153.97K (153,965) |
| MoM Traffic Delta | +5.83M (+19.4%) | +13.09K (+9.3%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (12.1%) |
| Direct Visits / mo | 24.34M | 45.83K |
| User Rating | 4.7 | 4.4 |
| 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.
Upscale blurry photos to 4K and 8K with AI
AI models analyze the image and reconstruct detail to raise resolution while keeping textures and edges natural rather than artificially sharpened.
Purpose-built modes for standard photos, portraits, anime and art, face restoration and scratch restoration let you match the tool to the image.
Upload up to 5 images at once on the free tier, with larger batches available on paid plans for high-volume workflows.
Non-destructive cleanup tools include background removal, object removal, watermark removal, colorization, photo restoration and an AI photo editor.
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.
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
Free online design tool with AI-powered templates and photo editing
Free online design tool with AI-powered templates and photo editing
Unofficial Midjourney API — generate images from your own app.
Unofficial Midjourney API — generate images from your own app.
An agentic coding platform that ships real software
The AI coding agent that turns ideas into shipped software
Google's AI tool for generating mobile and web UI designs from prompts
