Qian Xu

Qian Xu

Welcome to my corner of the internet. I'm a software engineer based in Guangzhou, China. A detail-oriented developer who loves crafting pixel-perfect interfaces and building tools that make everyday tasks a breeze.

Bandian Tech logo

Bandian Tech

Full Stack Developer

Apr 2024 — Current

Building AI-powered fintech products using Next.js. Responsible for end-to-end development of trading platforms and financial analytics tools.

9Air logo

9Air

Software Engineer

Apr 2023 — Apr 2024

Developed and maintained internal OA systems to streamline business operations and improve workflow efficiency across departments.

Projects

APIPass

Next.jsTailwindCSSSupabaseCloudflareVercelShadcn UI
Constant

An AI-powered API aggregation platform. Connect to any API instantly. Discover, integrate, and manage thousands of APIs in one unified marketplace.

BestStock AI

Next.jsTailwindCSSDockerSupabaseCloudflareVercelShadcn UI
7.67K / month
Constant

AI-powered stock analysis tool for U.S. stocks, offering institutional-grade data and insights to help you invest smarter.

MakeBestMusic

Next.jsTailwindCSSTurborepoDockerSupabaseCloudflareVercelShadcn UI
379.97K / month
2025

AI music generator that creates high-quality songs from text prompts. Features music splitting, mixing, enhancement, and audio restoration for musicians and creators.

DICloak

Next.jsTailwindCSSDockerSupabaseCloudflareVercelShadcn UI
652.16K / month
2025

Anti-detect browser for managing multiple accounts with maximum anonymity. Offers anti-detection, account protection, and scalable business growth solutions.

Open Source Contributions

4.1k stars

Project

Internationalization (i18n) for Next.js that gets out of your way.

My Contribution

Contributed bug fixes and documentation improvements to the popular Next.js internationalization library.

8 stars

Project

A Chrome extension for capturing and downloading M3U8 video streams from web pages.

My Contribution

Author. Built a browser extension with 400+ daily active users that automatically detects and saves HLS video streams.

Project

A smart image batch compression tool supporting JPG, PNG, WebP, GIF, and AVIF formats.

My Contribution

Author. Created an efficient CLI tool and Node.js library that intelligently compresses images while maintaining quality.

Project

A data collection tool for Chinese calendar data including lunar dates, festivals, and auspicious days.

My Contribution

Author. Built a scraper that exports RFC 5545 ICS format, compatible with Apple Calendar, Google Calendar, and Outlook.

Project

An MCP server for querying China Railway 12306 train tickets, enabling AI assistants to search train schedules.

My Contribution

Author. Developed an MCP-based service supporting ticket queries, transfer searches, and station lookups for Claude, Cursor, etc.

Skills

Frontend

ReactReact
React NativeReact Native
Next.jsNext.js
TypeScriptTypeScript
TailwindCSSTailwindCSS
ViteVite
tRPCtRPC
ElectronElectron
Shadcn UIShadcn UI
MotionMotion

Backend

Node.jsNode.js
NestJSNestJS
PrismaPrisma
SupabaseSupabase
MongoDBMongoDB
StrapiStrapi
PuppeteerPuppeteer

Tools & DevOps

GitGit
DockerDocker
NginxNginx
TurborepoTurborepo
RedisRedis
WebpackWebpack
npmnpm
YarnYarn
pnpmpnpm
BunBun
PrettierPrettier
NgrokNgrok

Cloud & Services

VercelVercel
CloudflareCloudflare
StripeStripe
ClerkClerk
OpenRouterOpenRouter

AI

ClaudeClaude
OpenAIOpenAI
AI SDKAI SDK
Claude CodeClaude Code
CursorCursor
OpenCodeOpenCode

Libraries

React QueryReact Query
LodashLodash