Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. pdf.net records 1,257,131 monthly visits with -22.3% growth and Freemium, Free pricing.
Battle-test AI coding models side by side
All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | pdf.net |
| Pricing Model | Free | Freemium, Free |
| Monthly Visits | 35.83M (35,827,928) | 1.26M (1,257,131) |
| MoM Traffic Delta | +5.83M (+19.4%) | -360.37K (-22.3%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (76.7%) |
| Direct Visits / mo | 24.34M | 181.52K |
| User Rating | 4.7 | 4.1 |
| 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.
All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents
Edit text, fonts, sizes and colours directly in the document, insert images, add page numbers, watermarks and Bates numbering, rotate, extract or rearrange pages, and split or merge files.
Convert between PDF and Word, Excel, PowerPoint, CSV, JPG, PNG, HEIC, EPUB, Markdown and text, including bank-statement-to-spreadsheet and PDF comparison workflows.
Type, draw or upload a signature, request signatures by email, add password protection, black out sensitive content and make flat or scanned forms fillable.
Chat with a PDF to ask questions about its contents, summarize a long document into key points, generate a formatted PDF from a description, or have AI populate a form automatically.
SpecialistDelivers quick PDF summarization and document chat, but lacks the broader editing and e-signature features of pdf.net.
SpecialistDelivers quick PDF summarization and document chat, but lacks the broader editing and e-signature features of pdf.net.
Provides professional desktop and cloud PDF editing software with extensive document conversion tools, but requires downloads.
Provides professional desktop and cloud PDF editing software with extensive document conversion tools, but requires downloads.
SpecialistAn AI agent that summarizes, transcribes, and turns your ideas into slides, docs, and media
SpecialistAn AI agent that summarizes, transcribes, and turns your ideas into slides, docs, and media
Offers a robust free PDF editing and reading suite with built-in AI summarization, rivaling pdf.net's workspace.
Provides comprehensive cloud PDF conversion and editing tools paired with AI chat, closely matching pdf.net's feature set.
Provides comprehensive cloud PDF conversion and editing tools paired with AI chat, closely matching pdf.net's feature set.
Features a massive collection of free browser-based file utilities, though with a less polished dedicated PDF workspace.
Features a massive collection of free browser-based file utilities, though with a less polished dedicated PDF workspace.
SpecialistSpecializes purely in conversational Q&A and chat with PDF documents, lacking advanced editing and e-signature tools.
Crowdsourced arena where AI models compete and humans crown the best design output
Crowdsourced arena where AI models compete and humans crown the best design output
Agent Skills that give your coding agent real design taste
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
SpecialistTranslate, summarize, and understand documents in 154 languages without losing the layout
SpecialistTranslate, summarize, and understand documents in 154 languages without losing the layout
Free AI hackathons and a global community for AI builders
Free AI hackathons and a global community for AI builders
