Fast, Reliable & Secure File Uploader & API
BETTER FILE UPLOADS. BETTER ENGAGEMENT FOR YOUR APPS.
Dramatically improve the look and performance your file uploader with two lines of code
Filestack Upload gives you the same upload technology used by internet giants without the struggle of having to maintain it.
AN INSTANT UX UPGRADE
Filestack Upload gives you the same upload technology used by internet giants without the struggle of having to maintain it.
A HUGE BOOST IN PERFORMANCE
Behind the scenes, Filestack’s advanced infrastructure uploads files almost 4 times faster.
Powerful Ways To Access Files
No matter the method, Filestack handles the hard work and integrations required to make file access easy and reliable.
Drag & Drop or Copy & Paste
Allow your users to perform a file upload using the natural interactions they already know from using desktop applications.
Try it out! Drag and drop or copy and paste any file
Click to pick files & images
Make any button or link open a file dialog just as users expect. Once the file is selected, Filestack auto-generates a preview and assists the upload process – making it faster and more reliable.
Try it out! Click the button to upload files →
Connect to dozens of online accounts
Connect to content directly from the sources where your users have it – without the hassle or effort often required. Filestack maintains dozens of integrations with popular services, requiring no integration work on your part.
← Try it out! Connect to an online account
Add realtime photos, video, and audio
Allow users to use device cameras to instantly add photos, audio recordings, and video. Often a complex process to support on multiple devices, Filestack makes it easy to add realtime capture right inside your app.
Try it out! Click an icon to experience realtime capture →
Connect to your own Custom Sources
Add your own integration to the Filestack File Picker based either on static list of files or dynamic integration of your choice.
WAY MORE THAN A FILE UPLOADER WIDGET: A COMPLETE UPLOAD SERVICE.
What you can get only from Filestack
BETTER RELIABILITY
Filestack Intelligent Ingestion™ can dynamically adjust to changing network conditions to guarantee upload success 99.999% of the time.
ACCELERATED UPLOADS
Filestack’s exclusive technology can provide your app immediate access to content – even while it’s still in transit accros the network.
ONE API FOREVER
Filestack brings images, videos, and files to your app from 20+ sources through a single, stable API. (No need to maintain an integration to each service).
PREVIEW
Users can preview their uploaded files directly inside the File Picker.
CONNECT TO 20+ CLOUD DRIVES
Connect your app directly to AWS, Facebook, Dropbox, Instagram, and more.
PROGRESS BAR UPLOADS
Give your users confidence that their files are on the way to the right destination.
MULTI-FILE UPLOADS
Let your users upload multiple files at one time for speed and simplicity.
CUSTOM CSS
Filestack blends seamlessly into your website or app. Ask about white-labeling.
CLIENT-SIDE CROP
Users can crop files to perfection before sending them to your website or app.
UNLIMITED UPLOADING
Upload any file type, from any local or cloud source, at any scale.
WEBSITES & HTML
Filestack can even load web content from any public URL and capture the rendered page as an image. Perfect for generating screenshots, previews, or converting HTML-based content into other formats.
SECURE CLOUD STORAGE
Store uploads directly in your cloud storage for ease and accessibility.
Just One Integration, One Time…
Filestack connects you with a multitude of services with one simple integration. You never have to worry about updating API integrations again. Uploading Files is our raison d’etre. We update for other API changes, and will never depreciate our API or force unwarranted changes on you.
Libraries & SDKs
Choose from our SDKs to get started: Javascript, Ruby, PHP, Python, Swift, Android
No maintenance required
Once you integrate, you’re done. Never worry about changing APIs disrupting your file workflow again.
Dev-to-dev support
Your files are always our #1 concern. We are always here to help you get up and running and assure the best performance.
import * as filestack from 'filestack-js';
const client = filestack.init('YOUR API KEY');
client.upload(fileObject).then(data =>console.log(data.url));gem 'filestack'
client = FilestackClient.new('YOUR_API_KEY', security: security_object)
filelink = client.upload(filepath: '/path/to/file')$ composer require --prefer-dist filestack/filestack-php
use Filestack\FilestackClient;
$client = new FilestackClient('YOUR_API_KEY');
$filelink = $client-upload('/path/to/file');$ pip install filestack-python
from filestack import Client client = Client("")
params = {'mimetype': 'image/png'}
new_filelink = client.upload(filepath="path/to/file", params=params)
print(new_filelink.url)
“Being smart here, in my opinion, is seriously looking at Filestack to give you a fantastic uploading experience, while you spend your time on your product vision, not already-solved problems.”
— CHRIS COYIER, FOUNDER OF CSS-TRICKS & CODEPEN
Frequently Asked Questions
What is the maximum file size that can be uploaded?
The maximum file size that can be uploaded is up to 5 GB, depending on the plan you choose.
What programming languages does Filestack support?
Filestack supports several programming languages, including JavaScript, Python, Ruby, PHP, Java,.NET, and Go.
How does Filestack handle image transformations?
Filestack’s image transformations allow you to resize, crop, rotate, and apply filters to images on-the-fly using simple URL parameters.
What is Intelligent Ingestion™?
Intelligent Ingestion™ is a patented technology that allows for faster and more reliable uploads by dynamically adjusting to changing network conditions
What integrations does Filestack offer for cloud storage providers?
Filestack offers integrations with popular cloud storage providers such as Amazon S3, Google Cloud Storage, Microsoft Azure Blob Storage, Rackspace Cloud Files, and Dropbox, among others.
How does Filestack handle security?
Filestack provides several security features such as signed URLs, policy documents, and OAuth 2.0 authentication.