Our Top 5 API Services in 2026
24.03.2026
Private File Sharing with AWS.
A self-hosted, serverless file sharing portal for teams that cannot use SaaS solutions.
S3ndless turns your Amazon S3 bucket into a secure file sharing website with expiring and password-protected download links. It runs entirely inside your AWS account using native services — no external SaaS, no third-party storage, and no data leaving your environment. Designed for organizations with security, compliance, or data residency requirements.
Deploy directly into your AWS account.
Buy on AWS Marketplace
Try the live demo
You can test the S3ndless user interface and workflow using a live demo instance:
👉 https://send.silverlining.cloud
❓Why S3ndless
Many organizations are not allowed to use external file sharing services such as WeTransfer, Dropbox, or Google Drive due to internal policies or regulatory requirements.
S3ndless provides a modern file sharing experience while keeping full ownership of:
- Data
- Infrastructure
- Access Control
- Billing
❗Core features
- Serverless architecture using S3, Lambda, DynamoDB, and CloudFront
- Web-based drag-and-drop file uploads
- Secure download links with expiration by time or download count
- Optional password protection for download links
- Optional password protection for the upload page
- ZIP packaging for multi-file uploads
- Customizable branding (logos, colors, text)
- Support for custom domains
- No external services or vendor-managed infrastructure
Best Practices & Insights From Our Blog
How to Deploy
1) Subscribe to S3ndless via AWS Marketplace
2) Launch the provided CloudFormation template
3) Start sharing files from your own AWS account
No servers to manage.
The entire stack can be removed at any time.
Transparent Flat Fee Pricing
S3ndless is offered at a simple, predictable price of $180 per year. The annual fee is flat and includes unlimited users, unlimited files, and unlimited downloads, with no usage-based pricing from us. All AWS infrastructure costs (S3, Lambda, CloudFront, DynamoDB) are billed directly by AWS based on your actual usage.
Learn More
Documentation is available and provides detailed information about the system architecture, security model, and configuration options. It also explains how to set up custom domains, deploy and remove the stack, and understand the associated AWS infrastructure costs.
Visit Documentation for AWS Integration
Share Your Files now
Deploy via AWS Marketplace
Frequently Asked Questions (FAQ)
Does S3ndless run as a SaaS?
No. S3ndless runs entirely in your AWS account. After deployment, all components are owned and managed by you.
Where are files stored?
All uploaded files are stored in your own Amazon S3 bucket.
Does any data leave my AWS account?
No. There are no external API calls or third-party services involved.
Can I use my own domain?
Yes. S3ndless supports custom domains using Amazon CloudFront.
Is this suitable for regulated environments?
Yes. S3ndless is designed for environments with strict security, compliance, or audit requirements.
Can I remove the solution later?
Yes. The entire stack is deployed via CloudFormation and can be removed cleanly at any time.