Plums

Welcome to Plums

Plums offers free online utilities that run in your browser. Convert SVG to PNG, compress images, create and decode QR codes, and work with PDFs—merge, split, compress, convert to images, and more. Everything stays on your device: fast, private, no upload required.

  • Processed locally—no server upload
  • Free to use
  • Image · SVG · PDF · QR code
  • Privacy-first

About my stack

Full-stack, cross-platform focus—feature delivery, SDK integration, and release support.

Cross-platform & frontend

Apps, mini programs, and web with maintainable UI

  • Flutter: GetX, dio, ScreenUtil, GetStorage, and more
  • HarmonyOS ArkUI, UniApp / WeChat Mini Programs
  • Vue3 / Nuxt3, Pinia, Axios, i18n, Tailwind CSS
  • AI agent development

Backend & ops

APIs, data layer, and content sites

  • Node.js + Express—REST APIs, auth, webhooks
  • MySQL / PostgreSQL schema design and query tuning
  • WordPress themes/plugins, deployment, and ops

Integrations

SDK rollout and production troubleshooting

  • RongCloud IM / voice-video, custom messages (HarmonyOS, WeChat MP)
  • Firebase, Airship, GeTui
  • WeChat Pay, Alipay Pay, Cards, PayPal
  • Google Maps, WebSocket, Zoloz