Best Self-hosted Alternatives to CloudApp

Zipline is a ShareX/file upload server that provides a single web dashboard and API for uploading, managing and sharing files and shortened URLs. It focuses on an easy Docker-based setup, a modern SPA dashboard, and integrations for embeds and webhooks.

Key Features

• Web dashboard and gallery for browsing, tagging and organizing uploads (folders, tags, pagination).
• ShareX-compatible upload endpoints and a public API for programmatic uploads and administration.
• URL shortening with customizable link formats and management UI.
• Embed generation (OG metadata) and automatic Discord/HTTP webhook notifications for uploads and shortened links.
• Authentication: OAuth2 (Discord, GitHub, Google, OIDC), 2FA and optional Passkeys; password-protected files and invites.
• Media handling: on-the-fly image compression, video thumbnail generation, and support for many file types (text rendering, syntax highlighting, PDFs, asciinema, etc.).
• Partial/chunked uploads for large files, quotas per user, and custom themes for UI customization.
• Storage flexibility: local disk default with optional S3-compatible storage backends.
• Docker / Docker Compose deployment and development tooling (pnpm, Vite, TypeScript, Prisma, PostgreSQL).

Use Cases

• Self-hosted file sharing for teams or communities with ShareX integration and audit metrics.
• Hosting and managing user-uploaded media with embed metadata for chat platforms and automated notifications.
• Private or public URL shortening service combined with file hosting for quick link/file distribution.

Limitations and Considerations

• Major rewrite: v4 is a ground-up rewrite and there is no automatic upgrade path from v3; data export from v3 and import into v4 is required.
• Repository has recorded security advisories; operators should review advisories and run recommended updates before production use.
• Runs as a full Node.js application with a database and therefore requires proper resource planning (Postgres, storage, Docker) for larger-scale deployments.

Zipline provides a complete, opinionated stack for file uploads and link shortening with a modern web UI and first-class integrations. Its focus on easy Docker deployment, a full API, and media/embed features make it suitable for personal instances, small teams, and community services.

Chibisafe is a modern file vault and uploading service designed to store files, photos, documents, and more, then share them via direct links. It focuses on performance with a robust API and chunked uploads to handle large files reliably.

Key Features

• Chunked uploads for large files to reduce failures on unstable connections
• Shareable direct links for uploaded files
• Albums/folders with share links
• Snippets/gists with direct links
• File management features including tagging
• User accounts, invite-only mode, quotas, and API keys for programmatic uploads
• Built-in URL shortener
• Admin dashboard to manage instance configuration (limits, rate limiting, allowed extensions, metadata)
• Integrations such as ShareX support, browser extension, and iOS shortcut
• Optional S3-compatible storage support

Use Cases

• Personal or team file drop for sharing screenshots, recordings, and documents
• Private media vault with folders/albums and lightweight file organization
• Programmatic uploads from scripts and tools using API keys

Chibisafe provides a polished UI and practical integrations while remaining flexible for public or controlled-access deployments. It is well-suited for anyone who wants an efficient, link-based alternative to hosted file sharing services.

Slink is a self-hosted, open-source image sharing platform that lets teams and individuals upload, manage, and share images from their own instance. It pairs a Symfony backend with a SvelteKit frontend and is distributed with Docker images and a demo instance for evaluation.

Key Features

• Multi-format image uploads with automatic processing (PNG, JPG, WEBP, SVG, BMP, ICO, GIF, AVIF, HEIC, TIFF) and format conversions where required.
• Multi-file upload UI with per-file progress and upload history (list and grid views).
• Hierarchical (nested) tags and search/filtering for organized image discovery.
• Image deduplication to prevent duplicate storage and user-facing notifications on duplicates.
• Shareable/customizable image links, URL shortening for images, and ShareX integration for automated uploads.
• Role-based authentication, optional user approval workflow, admin dashboard with analytics, notifications, bookmarking, and public gallery browsing.
• Docker-ready deployment with docker run / docker-compose examples; supports local storage, SMB shares, and S3-compatible backends.

Use Cases

• Host and share project screenshots, portfolio images, or documentation assets without relying on third-party image hosts.
• Provide a team-facing image upload endpoint (ShareX/API key integration) for automated capture and sharing workflows.
• Public or community galleries for artists or small communities with moderation and bookmarking features.

Limitations and Considerations

• Public API exists but is not fully documented; integrations may require reading source code or opening issues for guidance.
• HEIC and TIFF images may be converted to JPG for compatibility, which can change metadata and image fidelity.
• Advanced production concerns (CDN integration, multi-node database scaling) are listed as upcoming or optional features; plan infrastructure accordingly for large-scale usage.

Slink provides a pragmatic, developer-friendly way to self-host image sharing with a modern Symfony + SvelteKit stack and container-first deployment options. It is suitable for single-server homelabs, small teams, and anyone who wants control over image hosting and sharing policies.

Picsur is a self-hostable image sharing service designed for quickly uploading and sharing images, similar to Imgur, with a workflow that also feels like a Pastebin for images. It supports both anonymous uploads and user accounts, and includes server-side conversion and basic editing.

Key Features

• Upload and view images with shareable links
• Anonymous uploads and authenticated user accounts
• Roles and permissions for access control and administration
• Image conversion and basic editing operations (such as resize/rotate/flip)
• EXIF stripping (with an option to keep originals)
• Support for many image formats, including animated formats
• Expiring images and deletable uploads
• ShareX endpoint for fast desktop uploads
• Database migrations for schema upgrades

Use Cases

• Host a private image sharing service for a team or community
• Create a ShareX-backed upload endpoint for quick screenshot sharing
• Share images with automatic conversion/optimization and metadata stripping

Limitations and Considerations

• The upstream project is not maintained, which may impact security updates and future compatibility
• Some features mentioned in the roadmap (such as albums or a public gallery) are not implemented

Picsur is a straightforward option for running your own image host with useful privacy and workflow features like EXIF stripping, expiring uploads, and ShareX integration. It best fits deployments where you can maintain the stack and potentially fork or patch it as needed.

Uguu is a simple, lightweight file hosting service focused on fast temporary uploads and sharing. It provides a minimal web interface for quick uploads and an API for automation, and can also be configured for more permanent hosting.

Key Features

• One-click uploads with no registration required
• Drag-and-drop and clipboard paste uploads in a modern, minimal web UI
• Upload API with multiple response formats (JSON, HTML, text, CSV)
• Compatibility with screenshot tools such as ShareX
• File extension and MIME type allow/deny listing
• Upload rate limiting and file hash blacklisting
• Works with common deployments (for example Nginx with PHP)

Use Cases

• Temporary sharing of files via short-lived links
• Automated uploads from scripts or tools using the HTTP API
• Personal or team upload endpoint for screenshots and quick file transfers

Limitations and Considerations

• Instances are often configured with file expiry/retention rules, which may not suit long-term storage without customization

Uguu is a practical choice when you need a small, straightforward upload service that is easy to deploy and operate. Its combination of a simple UI and a flexible API makes it suitable for both manual and automated workflows.

Fireshare is a self-hosted web app for hosting and sharing short videos (such as game clips) via unique watch links. It scans a folder of videos, builds a browsable library, and provides a clean watch page for recipients.

Key Features

• Automatic library scanning from a mounted videos directory
• Admin dashboard to manage videos and edit titles/descriptions
• Unique share links, including timestamped link sharing
• Optional public feed and optional public/community uploads
• Folder-based organization using top-level directories
• Open Graph metadata for rich previews in chat apps and social sites
• LDAP authentication support
• Optional automatic transcoding to 720p/1080p variants (AV1) with quality selection
• GPU-accelerated transcoding via NVIDIA NVENC (optional)

Use Cases

• Share ShadowPlay or other gameplay clips without uploading to third-party platforms
• Host a lightweight community clip hub with moderated uploads
• Maintain a personal video library with quick link sharing

Limitations and Considerations

• Transcoding is disabled by default and can be resource-intensive when enabled
• GPU transcoding requires compatible NVIDIA hardware, drivers, and container runtime support

Fireshare focuses on simple folder-based media hosting and fast sharing, making it well-suited for short-form video clips and small-to-medium personal libraries. It’s typically deployed with Docker and relies on filesystem mounts for storage and scanning.

PictShare is a self-hostable hosting service for images, GIFs, MP4 videos, and text pastes. It provides a simple HTTP API for uploads and supports on-the-fly resizing and transformations by changing the URL.

Key Features

• Upload images, GIFs, MP4s, and text pastes via web UI and HTTP API (POST upload, URL fetch, and Base64 upload)
• URL-based resizing and transformations (including optional forced sizing) and image filters
• Automatic conversions such as GIF-to-MP4 and JPG/PNG to WebP when supported
• MP4 resizing and preview image generation
• EXIF metadata removal for uploaded photos to reduce accidental data leakage
• File-based storage (no database required) with duplicate detection to save disk space
• Delete codes and delete URLs for per-file removal, plus global/master delete controls
• Optional external storage support, including S3-compatible backends and encryption for external storage
• Extra utilities such as placeholder images, identicon generation, and URL shortening

Use Cases

• Private image and video hosting for teams, homelabs, or internal tools
• API-driven uploads from scripts, CI pipelines, or applications that need shareable media links
• Lightweight paste hosting for sharing logs, snippets, or text attachments

Limitations and Considerations

• Primarily file-based and URL-driven; it is not a full digital asset management system with advanced libraries/workflows
• Video and image conversions rely on system tooling (for example FFmpeg configuration) and can be resource-intensive

PictShare fits well when you need a simple, controllable media/paste endpoint with an easy API and predictable link-based transformations. Its database-less design and optional external storage make it straightforward to scale and operate.

Anchr is a compact, self-hosted toolbox for light-weight internet tasks, focusing on bookmark collections, a URL shortener, and encrypted image uploads, with an optional hosted service at Anchr.io. It emphasizes privacy, simple workflows, and easy deployment.

Key Features

• Link shortening with safety checks and easy sharing, leveraging Safe Browsing to guard against malicious URLs
• Searchable bookmarks collections with tagging and quick retrieval
• Client-side encrypted image uploads using CryptoJS for privacy
• Self-hosted and open-source core, plus a hosted Anchr.io service, plus OAuth 2 authentication and a Telegram bot for automation and access
• Prometheus metrics for monitoring and integration with ShareX for quick sharing

Use Cases

• Personal bookmark management: save, categorize and search links across devices
• Quick, private image hosting: upload images with client-side encryption for secure sharing
• Short links for chat/docs: generate compact URLs with built-in safety checks
• Optional hosted deployment: run your own instance or use the hosted service for collaboration

Conclusion

Anchr provides a focused, privacy-conscious toolkit for bookmarks, short links, and image hosting, with both self-hosted and hosted options to fit different needs. Built on a Node.js/MongoDB stack, it emphasizes observability with Prometheus and secure authentication via OAuth 2.

ShotShare is a lightweight open-source image posting and sharing application designed for quick screenshot uploads and simple link sharing. It provides a minimal interface focused on fast uploads, direct links, and easy self-hosting.

Key Features

• Simple image upload and sharing with direct, Markdown, BBCode and HTML link formats
• ShareX and other uploader integrations via API keys and example configuration
• Configurable storage and database backends (sqlite, MySQL, PostgreSQL, SQL Server supported)
• Docker and Docker Compose friendly with a one-container deployment option and example commands
• Optional Caddy-based automatic HTTPS support for certificate management
• Feature flags for reactions, UUID routes, footer, and other runtime behaviors
• Artisan CLI commands for maintenance (clean images, create user) and other admin tasks

Use Cases

• Fast screenshot hosting for teams or friends who need shareable image links
• Personal image dumping service for temporary or ephemeral uploads
• Backend for automated screenshot workflows using ShareX or other uploaders

Limitations and Considerations

• Intentionally bare-bones: lacks advanced gallery, CDN integration, or extensive media management features
• Default PHP upload limits are small by default (example PHP_UPLOAD_MAX_FILESIZE is 2M) and must be adjusted for larger files
• Storage is typically local by default; scaling or remote object storage may require additional configuration

ShotShare is focused on simplicity and ease of self-hosting, making it a practical choice for users who need a lightweight image sharing service without ads or extraneous features. It is configurable and extensible through environment variables and standard Laravel tooling.

Flare is a modern file sharing platform designed for self-hosted deployments. It provides fast uploads, universal previewing, and first-class integrations with popular screenshot tools to streamline sharing workflows.

Key Features

• Universal screenshot integration with ShareX, Flameshot, KDE Spectacle and script upload support
• Role-based permissions, private files, and password protection for access control
• Flexible storage backends: local filesystem and S3-compatible object storage
• Universal preview for images, videos, PDFs and code with syntax highlighting
• Smart search supporting filename and OCR-extracted text, with date filters
• Built-in admin dashboard for usage metrics, user management and system settings
• URL shortener with custom short URLs and click tracking
• Pastebin-style code/text sharing with syntax highlighting
• Theme customization, custom CSS/HTML injection, and configurable user quotas
• OCR processing to extract text from uploaded images

Use Cases

• Team or personal screenshot and file sharing server integrated with desktop tools
• Hosting quick pastes, code snippets and media previews for internal collaboration
• Private short-link service with tracking and role-based access for controlled sharing

Limitations and Considerations

• Requires a PostgreSQL database as the supported relational backend
• OCR processing and rich previews may increase resource usage and require additional runtime resources
• Storage backends are local filesystem or S3-compatible; advanced CDN or multi-backend orchestration is not provided out of the box

Flare provides a polished, performant experience for self-hosted file sharing with tight screenshot-tool integrations and administrative controls. It is well suited for individuals and teams that need private, searchable file and paste hosting with flexible storage options.

elixire is an open-source, lightweight image hosting and link-shortening application implemented primarily in Python. It provides a web UI, account management and an API for uploading images and creating shortlinks, and is distributed under a permissive FOSS license.

Key Features

• Web-based image hosting with an online file list and per-file delete controls.
• Integrated link shortening using multiple vanity domains for images and links.
• Account system and API access for programmatic uploads (API keys required by client libraries).
• Admin panel for managing site content and settings.
• Docker-friendly deployment and project assets include container configuration for easy installation.
• Public instance emphasizes client-side handling and a JavaScript-driven UI; project source and configuration are available in the repository.

Use Cases

• Quickly share screenshots or images in chat, forums or bug reports with disposable or persistent shortlinks.
• Host and manage small image libraries with per-file deletion and account-based file lists.
• Provide a simple shortlink service for campaigns, testing, or ephemeral content sharing.

Limitations and Considerations

• The official/public instance is highly client-side (JavaScript) driven; functionality and uploads may be limited or unavailable for non-JavaScript clients.
• The project focuses on lightweight hosting and link shortening rather than advanced on-the-fly image transformations or a built-in CDN; high-volume/production use may require external CDN or caching layers.
• Public instance privacy notes indicate some request processing by third-party providers for service operation and statistics; deployments should review privacy and hosting choices.

elixire is a pragmatic, minimal image host and shortener aimed at simplicity and quick sharing workflows. It is suitable for users who need a compact upload/shorten service and for operators who want a Docker-friendly, open-source instance to run and customize.