Directory
Uppy
Open-source JS file uploader
FreeImages, video & filesuppy.io
What it is
Modular JavaScript upload UI: drag and drop, progress, retries, resumable
tus uploads, crash recovery, image cropping before upload and 40 locales. The optional Companion server pulls files straight from Google Drive, Dropbox, Instagram or a URL without routing through the user's device.Why it earns a slot
The best upload front end you can get without building one. Resumable uploads and remote-source imports work against any backend — S3, tus, XHR or Transloadit — and nothing about it locks you to a vendor.
Know before you commit
Uppy only handles the client side; storage, transformation and delivery are still yours to build. Remote sources require running and securing the Companion server plus your own OAuth credentials.
Getting started
npm i @uppy/core @uppy/dashboard @uppy/tus
Neighbourhood
How Uppy sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.
Instead of thisSharpAWS S3 + CloudFrontBackblaze B2Cloudflare ImagesCloudflare R2Cloudflare StreamCloudinaryFilestackImageKit
Named in the wiringTransloadit
Also in Images, video & files
AWS S3 + CloudFront
aws.amazon.comNot yet swept
Object storage + global CDN
Free tier + paidImages, video & files
S3 Standard $0.023/GB-month (us-east-1), PUT $0.005/1K, GET $0.0004/1K. CloudFront: first 1 TB/mo and 10M requests free, then $0.085/GB NA/EU declining to $0.020/GB. S3 direct-to-internet egress $0.09/GB
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Backblaze B2
backblaze.comNot yet swept
Cheap S3-compatible object storage
Free tier + paidImages, video & files
$6.95/TB/month (about $0.0069/GB), first 10 GB free. Egress free up to 3x average monthly storage, then $0.01/GB. Class A/B/C API calls free; Class D $0.004 per 10K
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Cloudflare Images
developers.cloudflare.comNot yet swept
Image storage + edge transforms
Free tier + paidImages, video & files
5,000 unique transformations/mo free on every plan including Free. Then $0.50 per 1,000 unique transformations; $5 per 100,000 images stored/mo; $1 per 100,000 images delivered/mo
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Cloudflare R2
developers.cloudflare.comNot yet swept
S3-compatible storage, zero egress
Free tier + paidImages, video & files
Free 10 GB-month storage, 1M Class A ops, 10M Class B ops. Then $0.015/GB-month, $4.50/M Class A, $0.36/M Class B. Egress always $0 at any volume
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