S3 Browser & Cloud Storage Manager — Stream Vessel

S3 browser, client & file explorer for AWS S3 and S3-compatible storage. Browse, upload, download & manage files.

Stream Vessel is a fast, browser-based S3 browser and file manager that connects to AWS S3 and any other S3-compatible object storage — without installing a desktop app or leaving Chrome. Browse buckets, upload and download files with drag-and-drop, preview images and documents inline, search for your data, and organize your objects directly from your browser. Your access keys never leave your device: credentials are encrypted and stored locally, and Stream Vessel connects to your storage provider directly, with no middleman server in between. DIRECT AND PRIVATE ACCESS Stream Vessel communicates directly with your S3 storage. Your credentials are stored locally on your device and never pass through third-party servers. Complete privacy, total control. PERMISSION-MINIMAL BY DESIGN Unlike tools that demand broad access to every site you visit, Stream Vessel requests access only to the specific S3 host you connect to - and only at the moment you connect. Chrome's own permission prompt puts you in control: approve a connection's endpoint once, and revoke it whenever you like. AWS connections are scoped to Amazon's domains; other providers are scoped to the exact endpoint you enter. Your browsing stays private, and the extension can only reach the storage you point it at. UNIVERSAL S3 COMPATIBILITY Works seamlessly with Amazon S3 (AWS S3) and any other S3-compatible storage service. POWERFUL FEATURES Intuitive File Browser Tree-based interface for easy navigation with lazy loading for fast performance even with large buckets. Virtual scrolling handles thousands of files smoothly. Expand and collapse folders with automatic state persistence so you can pick up where you left off. Multi-select support for efficient batch operations. Seamless File Operations Upload single or multiple files with real-time progress tracking. Download files directly to your computer with streaming support for large files. Create folders and organize your storage structure. Copy and move files between folders and even between different buckets. Bulk delete operations with safety confirmations to prevent accidents. Support for large files with automatic multipart upload. Fast File Search Find any object without scrolling through thousands of keys. Search the current folder or the entire bucket, match on file name or full path, and use wildcards (* and ?) for precise queries. Matches stream in live with file-type icons, size, and last-modified date, and you can act on any result on the spot. Because listing very large buckets means more requests to your provider, Stream Vessel scans cost-consciously: it pauses on big keyspaces and asks before continuing, so a search never runs up surprise request charges - and you can choose "don't ask again" per connection. Secure File Sharing Generate short-lived presigned links to share files without making buckets public or exposing your credentials. Share a single file, or select many and copy all their links at once. Links expire automatically after the duration you choose, so access never outlives its purpose. Built-in Text and Code Editor Edit text and code files directly in your browser without downloading them first. Powered by Monaco Editor, the same editing engine used in Visual Studio Code. Syntax highlighting for over 50 programming languages. Make quick edits to configuration files, update website content, fix typos in documentation, or modify scripts - then save changes directly back to S3 with one click. Metadata Management View complete object metadata including size, content type, last modified date, and custom headers. Edit metadata fields to fix incorrect MIME types or update caching behavior. Manage custom metadata headers for advanced use cases. Add your own metadata tags for better organization and categorization. Update metadata without re-uploading files, saving time and bandwidth. Scoped Connections Lock a connection to a single bucket - or a specific folder/prefix - with an optional bucket path like s3://mybucket/team/projectA/. Scoped connections open straight into that location instead of listing every bucket, so they pair perfectly with least-privilege credentials that aren't allowed to list all buckets. Ideal for handing a teammate access to just one project folder. Connection Management Store unlimited S3 connections and switch between them instantly. A provider-first dialog gets you started fast with one-click setup templates for the most popular S3-compatible services, plus any other provider you use. An Advanced section keeps expert options - custom region, AWS Assume Role, and service-endpoint overrides (FIPS, dualstack, VPC interface endpoints) - tucked away until you need them. Built-in connection testing validates your credentials before saving. Import and export connections as JSON files for easy backup, sharing with team members, or transferring between computers. All credentials are stored locally on your device - never transmitted to third parties. PROFESSIONAL INTERFACE Clean, modern user interface with responsive design adapts to any screen size. Context menus provide quick access to all file operations. Smooth animations and transitions for a polished experience. SECURITY FIRST Your security and privacy come first. Stream Vessel runs entirely in your browser and talks directly to your S3 storage over HTTPS - there are no Stream Vessel servers in between, so your files and credentials never pass through third parties. Connection details are stored locally on your device, sandboxed to the extension, and never transmitted anywhere. You stay in control of access: use least-privilege IAM keys or scoped credentials, and Stream Vessel respects whatever bucket policies and permissions you've configured. The extension requests access only to the S3 endpoints you connect to, not to your general browsing. Only anonymous, aggregate usage analytics (page views and feature usage) are sent to Google Analytics - no file contents, object names, or credentials are ever collected or shared. PERFECT FOR Developers: Quick access to S3 buckets during development without switching contexts. Deploy static websites and update content in real-time. Manage build artifacts and deployment packages. Edit configuration files on the fly. Download application logs for debugging. Upload and organize code repositories. Test file upload/download functionality. Manage CDN assets and resources. Content Creators: Upload and organize photos, videos, and media files. Share large files with clients using short-lived links instead of email attachments. Manage website assets like images, stylesheets, and scripts. Backup creative projects and works in progress. Organize content libraries by project, date, or category. Quickly update website content without FTP clients. IT Professionals: Manage backup repositories across multiple locations. Access and download log archives for analysis. Deploy configuration files to production systems. Monitor storage usage across different buckets. Organize system data and automation scripts. Maintain disaster recovery files. Store and retrieve database backups. Data Teams: Browse and explore datasets stored in S3. Upload data files for processing pipelines. Manage data archives and historical records. Access data lakes for analysis. Download query results and processed data. Organize raw and processed data separately. Share datasets with team members securely. Small Businesses: Store and share business documents securely. Manage website files without technical expertise. Backup important business data regularly. Share files with clients professionally using time-limited links. Organize files by department, project, or date. Reduce costs by using any S3-compatible provider. GETTING STARTED Getting started with Stream Vessel is simple: 1. Install Stream Vessel from the Chrome Web Store 2. Click the extension icon in your Chrome toolbar - a welcome page introduces the extension and guides you to your first connection 3. Pick your provider and enter your access key, secret key, and (for non-AWS providers) the service endpoint 4. Click the Test Connection button to verify everything works 5. Save your connection, allow access to your storage host when Chrome asks, and start browsing your files immediately No complicated setup, no configuration files, no learning curve - just install and go. If you already have S3 credentials, you can be up and running in under two minutes. When a new version is available, an in-app banner lets you update with one click and reopens your tab right where you left off. WHAT YOU NEED To use Stream Vessel, you need: - An S3-compatible storage account from any provider - Access key and secret key credentials from your storage provider - The service endpoint URL for your S3 service (not required for AWS) - Google Chrome browser version 88 or later (or compatible Chromium-based browser) TECHNICAL DETAILS - Fully compliant with Chrome Manifest V3 specifications - Requests host access per connection, on demand, scoped to the endpoint you use - Supports both path-style and virtual-hosted-style URLs for maximum compatibility - Handles large files efficiently with streaming downloads - Automatic multipart upload for large files - Smart retry logic for network interruptions WHY CHOOSE STREAM VESSEL No Vendor Lock-in: Unlike provider-specific tools, Stream Vessel works with ANY S3-compatible service. Switch providers anytime without changing tools or retraining your team. Privacy-Focused: Your data stays between you and your S3 storage. No intermediary servers for your file operations. Everything runs locally in your browser, and the extension only ever accesses the storage endpoints you connect to. Powerful Yet Simple: Professional-grade features in an interface anyone can use. No command-line expertise required, but powerful enough for advanced users. Fast and Efficient: Direct connections to your S3 storage mean faster operations. No proxy servers slowing things down. Optimized code for smooth performance even with large file lists. Always Accessible: Access your cloud storage from any computer with Chrome installed. No software to install on each machine - just add the extension and import your connections. Actively Maintained: Regular updates with new features, performance improvements, and security patches. Responsive to user feedback and feature requests. Cost Effective: No subscription fees or per-user licensing. You only pay for your S3 storage costs with your provider. Use with free S3 tiers for zero-cost file management. YOUR PERMISSIONS, MINIMIZED Stream Vessel asks for the least access it needs - and nothing more: Access to your S3 endpoints, on demand only: Stream Vessel does NOT request standing access to your browsing or to "all your websites." When you open a connection, it asks - through Chrome's own permission prompt - for access to just that connection's host (for example, amazonaws.com for AWS, or the endpoint you entered for other providers). You approve access per connection, and you can revoke it anytime from Chrome's extension settings. Storage: Saves your S3 connections and preferences locally on your device. Your credentials never leave your browser. Alarms: Schedules periodic checks for extension updates so you stay on the latest version. Analytics: Anonymous usage analytics (page views, feature usage) are sent to Google Analytics to help improve the extension. No personal data, file contents, object names, or credentials are collected or shared. CONTACT US Please send your questions, error reports, and feature requests to support@streamvessel.com