21YunBox vs. Filestack Comparison


21YunBox	Filestack	+	+
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About 21YunBox is a specialized enterprise performance overlay and managed compliance solution for Mainland China. Engineered for global stacks—including Sitecore, Adobe (AEM), Optimizely, Contentful, and Vercel—the platform enables international organizations to achieve local performance parity without requiring a separate codebase or costly infrastructure re-architecture. As a non-invasive stability layer, 21YunBox automates the resolution of "Great Firewall" bottlenecks. It identifies and rewrites blocked third-party dependencies (like Google APIs and YouTube) in real-time, replacing them with high-speed, China-friendly equivalents. Key Capabilities: Zero-Architecture: Maintain global origins (Azure, AWS, Vercel) while 21YunBox stabilizes delivery. Managed Compliance: End-to-end ICP Filing, PIPL security, and MIIT audits. Deep Video Optimization: High-speed delivery for YouTube/Vimeo assets. Fresh-by-Default: Instant visibility for CMS updates with zero manual syncing.	About Filestack revolutionizes content management with its powerful, easy-to-use API, offering developers a comprehensive solution for file and media handling. As the #1 developer service for uploads, it enables seamless content ingestion from any source, including web, mobile, and cloud storage. Filestack's intelligent processing capabilities transform, convert, and optimize files on-the-fly, while its high-performance CDN ensures lightning-fast, secure delivery of responsive content. With features like an embeddable viewer for in-app display and flexible storage options, Filestack streamlines the entire content workflow, from upload to delivery, empowering developers to create superior user experiences efficiently.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Global IT Directors, CTOs, and Marketing Executives managing global enterprise stacks (Sitecore, Adobe AEM, Vercel)	Audience Content Management software for everyone
Support Phone Support Supported 24/7 Live Support Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Supported Online Supported
API Offers API Not Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing No information available. Free Version Not Supported Free Trial Not Supported	Pricing $69 monthly Free - $0 forever Start - $69 billed monthly Grow - $199 billed monthly Scale - $379 billed monthly Enterprise - Custom tailored to your needs Free Version Supported Free Trial Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 4.6 / 5 ease 4.7 / 5 features 5.0 / 5 design 4.6 / 5 support 4.6 / 5 Read all reviews
	Pros & Cons from Real Users Pros The API is easy to work with, and adding file uploads was pretty straightforward. I also like the file conversion and processing features. I appreciate that Filestack offers an easy integration via API, which really simplifies the process for me. I like how it abstracts away the file transformation bit, including functions like file resize, compress, and convert transformations. Filestack's built-in validation and security provide peace of mind, and I'm impressed by their cloud storage and CDN solutions. As someone constantly deciding between building things in-house or using third-party solutions, Filestack makes outsourcing file handling, storage, and CDN an attractive option. Features a proprietary Content Ingestion Network (CIN) designed to make uploads, especially mobile uploads more reliable. Transformation tools via API. I can easily transform, resize, convert, optimize, and apply effects to images, videos, and documents before they are delivered. This includes format conversions like WEBP to JPG, In addition powerful AI features capabilities like object detection, explicit/unsafe content detection, image tagging, OCR. Handles uploads, conversions, storage & delivery in one API — saves tons of time and reduces dev headaches. Filestack makes uploading files so much easier. Its AI capabilities, like auto-tagging and OCR, save a lot of time, and the CDN support loads files quickly. Filestack is a great choice for smooth file handling! Cons Some features can take a little time to understand at first. Pricing is a very minor concern, for smaller usage it’s fine, but as file volume increases, the costs can mount up Onboarding is straightforward for basic use, but when trying to handle more specific requirements, I had to spend extra time understanding certain parts. Complex workflows require to study closely the documentation to know everything that Filestack offer. in the early day it's important to monitor the billing to understand how much it cost. in particular when using CPU heavy features like AI and converting/resizing. Limited free plan, some features are locked early. Filestack gets expensive as your project grows. While the cost may be a concern for small teams or startups, the performance and reliability can justify it for bigger projects.
Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported	Training Documentation Supported Webinars Supported Live Online Supported In Person Not Supported
Company Information 21YunBox Founded: 2018 Shanghai / San Fransisco www.21cloudbox.com	Company Information Filestack Founded: 2012 United States www.filestack.com
Alternatives Goooood SafeCDN Goooood	Alternatives Cloudinary
Chinafy	Simple File Upload
Tencent EdgeOne Tencent	TinyPNG Tinify
NiHao Cloud	imgix Zebrafish Labs
TinyPNG Tinify View All	Sirv View All
Categories Build Automation Supported CDN Supported Headless CMS Supported Web Analytics Supported Website Builder Supported Website Optimization Tools Supported	Categories CDN Supported Content Management Supported Document Management Supported File Sharing Supported Image Processing API Supported
CDN Features Content Acceleration Supported DDoS Protection Supported Load Balancing Supported Managed CDN Supported Multi-CDN Switching Supported Reporting/Analytics Not Supported Software Downloads Not Supported Transparent Caching Not Supported Video Streaming Supported Web Application Firewalls (WAF) Supported Show More Features Build Automation Features Automated Testing Supported Build Cache Supported Build Management Tools Supported Build Metrics Supported Change Only Compiling Not Supported Debugging Tools Supported Dependency Management Not Supported IDE Compatibility Not Supported Parallel Testing Not Supported Plugin Library Not Supported Source Code Management Not Supported Version Conflict Resolution Not Supported Web Analytics Features Campaign Management Supported Conversion Tracking Not Supported Form Analytics Not Supported Goal Tracking Not Supported Keyword Tracking Not Supported Multiple Site Management Supported Pageview Tracking Supported Referral Source Tracking Not Supported Site Search Tracking Not Supported Time on Site Tracking Not Supported User Interaction Tracking Not Supported Website Builder Features Auto Update Supported Content Import / Export Not Supported Drag & Drop Not Supported Invoices Supported Landing Pages / Web Forms Not Supported Newsletter Management Not Supported Online Booking Not Supported Online Store Builder Supported Pre-built Templates Supported Real Time Editing Supported SEO Supported Survey Builder Not Supported White Label Not Supported Website Optimization Tools Features Competitor Analysis Not Supported Content Management Supported Keyword Research Tools Not Supported Link Management Not Supported Performance Metrics Supported Problem Area Alerts Not Supported	Show More Features Content Management Features Audio Content Supported Customizable Templates Supported Document Indexing Supported E-forms Supported Full Text Search Supported Image Editor Supported SEO Management Not Supported Text Editor Supported Version Control Not Supported Video Content Supported Website Management Supported Document Management Features Access Controls Not Supported Archiving & Retention Not Supported Collaboration Tools Supported Compliance Tracking Supported Document Archiving Supported Document Assembly Not Supported Document Capture Not Supported Document Conversion Supported Document Delivery Supported Document Indexing Not Supported Document Retention Supported Electronic Signature Not Supported Email Management Not Supported File Recovery Supported File Type Conversion Supported Forms Management Not Supported Full Text Search Not Supported Offline Access Supported Optical Character Recognition Supported Print Management Not Supported Version Control Not Supported File Sharing Features Audit Trail Not Supported Chat / Messaging Not Supported Collaboration Supported Document Management Supported Drag & Drop Supported Electronic Signature Not Supported Encryption Not Supported File Synchronization Not Supported Search Not Supported User Management Not Supported Version Control Not Supported Workflow Management Supported
Integrations GitHub Supported Alibaba Cloud Supported Angular Not Supported Dropbox Not Supported Drupal Supported Facebook Not Supported Gatsby Supported Gitee Supported Google Analytics Supported Google Drive Not Supported Jekyll Supported Magento Supported Microsoft OneDrive Not Supported MongoDB Supported MySQL Supported Quickwork Not Supported Sanity Supported Stackreaction Not Supported VUE Not Supported commercetools Supported Show More Integrations View All 41 Integrations	Integrations GitHub Supported Alibaba Cloud Not Supported Angular Supported Dropbox Supported Drupal Not Supported Facebook Supported Gatsby Not Supported Gitee Not Supported Google Analytics Not Supported Google Drive Supported Jekyll Not Supported Magento Not Supported Microsoft OneDrive Supported MongoDB Not Supported MySQL Not Supported Quickwork Supported Sanity Not Supported Stackreaction Supported VUE Supported commercetools Not Supported Show More Integrations View All 18 Integrations
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