Store and Deliver Files at Scale
Upload files from any platform, served via CDN. Fast downloads anywhere in the world.
How File Storage Works
Upload from any client. Store securely. Deliver fast via CDN edge servers.
Everything for File Management
Upload, store, secure, and deliver — all in one platform.
Simple File Uploads
Upload files from any client using native SDKs or REST API. Automatic content-type detection included.
- Upload from iOS, Android, Web, or Node.js
- Automatic MIME type detection
- Base64 and byte array support
From your app to the cloud in seconds.
Edge Network
Files are automatically stored on edge servers worldwide. Users get fast downloads from the nearest location with automatic SSL.
- SSL/TLS by default
- Low-latency delivery worldwide
- Unique URL per file
- No CDN setup required
Your files, delivered fast — everywhere.
Simple & Accessible
Every uploaded file gets a unique URL. Share files easily across your app — no complex access configuration required.
- Unique URL per file
- Easy to share and embed
- Works with multiple file types
- Served via CDN for fast delivery
- Simple SDK integration
Upload it, share it, done.
Upload Files in Minutes
Simple SDK methods for any platform.
JavaScript
Web & Node.jsUpload files from browser or Node.js
// Upload from file input (browser)
const fileInput = document.getElementById('fileInput');
const file = fileInput.files[0];
const parseFile = new Parse.File(file.name, file);
await parseFile.save();
console.log('File URL:', parseFile.url());
// Attach to a Parse object
const post = new Parse.Object('Post');
post.set('title', 'My Photo');
post.set('image', parseFile);
await post.save();
// Upload from base64 (Node.js)
const base64Data = 'data:image/png;base64,iVBORw0KGgo...';
const base64File = new Parse.File('image.png', { base64: base64Data });
await base64File.save();
// Get the file URL after upload
console.log(parseFile.url());Store Any File Type
From user avatars to document archives — Back4app handles it all.
User Avatars
Profile pictures for social apps, marketplaces, and community platforms with automatic resizing.
Document Storage
PDFs, contracts, invoices, and reports with secure access control and download tracking.
Media Galleries
Photo and video galleries for e-commerce products, portfolios, and content platforms.
App Assets
Icons, banners, and marketing materials that can be updated without app releases.
Chat Attachments
Images, files, and voice messages in messaging apps with real-time delivery.
Generated Files
Reports, invoices, and exports your app creates — stored and served via CDN.
Frequently Asked Questions
What file types can I upload to Back4app?
What is the maximum file size I can upload?
How does the CDN work for file delivery?
How do users access uploaded files?
Start Uploading Files Today
1GB free storage included. CDN delivery. No credit card required.