Vextar harnesses the full power of DeepSeek — one of the world's most capable AI models — fine-tuned and optimized exclusively for professional code generation. The smartest coding copilot available, built for developers who demand production-ready results.
# Vextar AI · 0.8s async def authenticate_user( token: str, scopes: list[str] ) -> AuthResult: """JWT validation with rate limiting + audit log.""" payload = await jwt.verify( token, settings.SECRET ) if not has_scopes( payload, scopes ): raise PermissionDenied() return AuthResult( user_id=payload["sub"], scopes=scopes )
Describe in natural language. Receive clean, documented, production-ready code instantly — not snippets.
Analyzes patterns, bottlenecks, and anti-patterns. Modernizes codebases without regressions.
Python, TypeScript, Rust, Go, Swift, Kotlin and 40+ more — with full framework and ecosystem awareness.
Generates docstrings, README files, and API references automatically from your codebase.
Full coverage — unit, integration, and edge cases — generated and maintained automatically.
Native plugins for VS Code, Neovim, and JetBrains. Zero workflow disruption.
Write what you need in plain language. No special syntax, no commands to memorize.
Vextar reads your project context, stack, patterns, and conventions automatically.
Clean, tested, documented code — production-ready in under a second.
Refine, request alternatives, ask for explanations. Vextar adapts to your thinking.
No credit card required. 15 free messages per week. Cancel anytime.
Trusted by 12,000+ developers worldwide
Vextar cut my development time in half. I use it every day for API integrations and it always delivers production-ready code on the first try.
As a solo founder, Vextar is like having a senior dev on the team 24/7. I shipped my MVP in 2 weeks instead of 2 months.
I've tried Copilot and Cursor. Vextar is the only one that works straight from the browser without any setup. That alone saves me hours every week.
The code quality is insane. No placeholder comments, no truncated functions — just clean, complete code every time.
Pro gives you 200 messages per week — ideal for daily coding tasks. Ultra gives you 1,000 messages per week, perfect for intensive development or teams shipping fast.
Go to the chat sidebar and click 'Manage Subscription'. From there, cancel your Pro plan and purchase an Ultra plan. Your Pro access continues until the end of your current billing period.
Yes, anytime. Click 'Manage Subscription' in the chat sidebar. You'll keep access until the end of your billing period — no immediate cutoff.
We offer refunds within 7 days of purchase if you're not satisfied. Contact us at vextarhq@gmail.com with your order details and we'll process it promptly.
Message counts reset every Monday at 00:00 UTC for all plans. Free users get 15 messages, Pro users get 200, Ultra users get 1,000.
You'll see a notification and won't be able to send more messages until the Monday reset. You can upgrade at any time to get more messages immediately.
Vextar is powered by DeepSeek V4 Flash — a state-of-the-art model optimized specifically for code generation, refactoring, and technical problem solving.
Yes. Vextar is designed to produce complete, production-ready files — not just snippets. Copy and paste directly into your project without modification.
Yes. The Free plan gives you 15 messages per week at no cost — no credit card required. Upgrade whenever you're ready.
Yes. Your Vextar account and conversation history sync across all devices. Log in from any browser and pick up where you left off.