Overview
Upyun is a well-known Chinese cloud platform excelling in CDN acceleration, object storage, and image processing. Unlike comprehensive cloud vendors, UPYUN focuses on the "storage + processing + delivery" chain, building a strong reputation among small developers and site owners for affordable pricing, flexible pay-as-you-go, and powerful real-time image processing.
Founded in 2010 and headquartered in Hangzhou, UPYUN was among the first to offer fusion CDN in China. Its philosophy is "simple, transparent, cost-effective"—no minimums, no hidden fees, and usage-based billing. For image sites, e-commerce product images, UGC platforms, and static resource hosting, the integrated approach balances cost and efficiency; see the CDN provider selection guide.
Key Strengths
- Object storage + CDN integration, upload-then-deliver: Files auto-sync to CDN nodes after upload without origin/sync configuration, cutting ops complexity for static hosting; see the website CDN setup guide.
- Complete real-time image processing: Resize, crop, rotate, watermark, quality compression, and WebP/AVIF conversion via URL or API without pre-generating thumbnails; pair with image lazy loading.
- Affordable, no-minimum pay-as-you-go: CDN traffic from RMB 0.17/GB, storage RMB 0.099/GB/month, basic image processing free—more cost-effective than annual plans for fluctuating traffic; see the CDN cost control guide.
- Free HTTPS + Let's Encrypt auto certificates: Auto-issue and renewal with one-click HTTPS and custom certificate upload for enterprise compliance; see CDN SSL/TLS best practices.
- Developer-friendly API and SDKs: RESTful API with Python, PHP, Java, Go, Node.js, Ruby, and .NET SDKs covering uploads, purge/pre-warm, and image processing.
Product Ecosystem
Object Storage (UPYUN Storage)
99.9999999999% (12 nines) durability with static site hosting, custom domains, and cross-region replication; optimized storage-CDN origin links deliver high-value static hosting.
Image Processing (UPYUN Image Processing)
| Feature | Description | Use Cases |
|---|---|---|
| Resize/Crop | By dimensions/ratio, smart crop | Product images, avatars, thumbnails |
| Watermark | Image/text, position/opacity | Copyright, branding |
| Format Conversion | WebP, AVIF, JPEG-XL | Faster page loads |
| Quality Compression | By percentage/target size | Bandwidth savings |
| Image Moderation | Porn/violence/political detection | UGC compliance |
All processing happens in real time via URL parameters without pre-generated copies, reducing storage cost; see the website performance optimization guide.
Video Processing
Basic transcoding (H.264/H.265), screenshots, video watermarks, and audio/video muxing for small-to-medium video needs.
API and Integration
RESTful API and mainstream SDKs covering uploads, cache purge/pre-warm, and image processing for automated ops.
Limitations
- Basic features, no edge computing: Compared with Cloudflare Workers or Aliyun CDN functions, edge computing and serverless are weak; for dynamic edge logic evaluate Qiniu or Cloudflare.
- Smaller node scale: About 150+ domestic nodes versus Aliyun (2800+) and Tencent (3200+); use multi-CDN load balancing for niche or high-density needs.
- Fewer overseas nodes, limited cross-border: Mostly mainland China; overseas-facing sites should use Cloudflare or the cross-border CDN guide.
- Console less feature-rich: Monitoring granularity, log analysis dimensions, and security policy options trail tier-1 cloud vendors.
Use Cases
- Image sites / image hosts (★★★★★): One-stop object storage + real-time image processing + CDN with image lazy loading.
- E-commerce product image processing (★★★★★): Thumbnails, WebP/AVIF conversion, watermarking, and compression via URL without pre-generation.
- Small static sites / blogs (★★★★☆): Free tier covers early needs; combine with the CDN cache strategy.
- UGC content platforms (★★★★☆): One-stop upload, process, and deliver with content moderation for compliance.
- Online education / paid content (★★★☆☆): Basic video processing for small-to-medium needs; Qiniu for large-scale or complex transcoding.
- Overseas-heavy websites (★★☆☆☆): Use Cloudflare or the cross-border CDN guide.
Pricing
| Service | Billing | Price |
|---|---|---|
| CDN Traffic (domestic) | Per GB | RMB 0.17-0.34/GB (tiered) |
| CDN Traffic (overseas) | Per GB | RMB 0.30-0.70/GB (by region) |
| Object Storage | Per storage | RMB 0.099/GB/month |
| Image Processing (basic) | Per invocation | Basic resize/crop free |
| Image Processing (advanced) | Per invocation | RMB 0.01/1k |
| HTTPS Requests | Per 10k | Free quota, then RMB 0.01/10k |
| Video Transcoding | Per duration | From RMB 0.016/min |
Free tier: New users get 10GB storage + 10GB CDN traffic. Traffic and storage are price-competitive; see the CDN cost control guide.
FAQ
- Is it suitable for static site hosting? Yes, object storage supports static hosting as a direct origin with excellent CDN performance; assess fit per static site vs dynamic CMS.
- Does image processing auto-convert WebP/AVIF? Yes, based on the request Accept header, directly improving Core Web Vitals scores; see the image optimization CDN guide.
- How to choose with Qiniu? Both focus on "storage + processing + delivery"; UPYUN wins on affordability and console ease, Qiniu on richer data processing and audio/video ecosystems.
- Does it support HTTPS? Yes, free Let's Encrypt auto-issue/renewal and custom certificates; see CDN SSL/TLS best practices.
- Is it suitable for overseas acceleration? Limited overseas nodes; use Cloudflare or multi-CDN load balancing for overseas audiences.