Open-source alternatives to FileDownloader

proxyee-down is an HTTP proxy download manager and multi-threaded download client. It is designed to route file download requests through an HTTP proxy server to accelerate data retrieval and bypass network restrictions. The tool increases transfer speeds by splitting large files into smaller chunks and downloading them concurrently across multiple TCP connections. It features the ability to update expired or changed source URLs for existing tasks, allowing interrupted downloads to recover and resume without losing previously downloaded segments. The system provides controls for manual downl

This project is an Objective-C HTTP networking library that provides an object-oriented wrapper for CFNetwork to execute synchronous and asynchronous requests on macOS and iOS. It functions as a framework for managing HTTP sessions, performing resumable file transfers, and handling offline content caching. The library distinguishes itself through a resumable file transfer manager that tracks byte offsets and utilizes disk-backed streaming for large uploads and downloads. It also includes a secure credential manager that integrates with the system keychain to handle client certificates and aut

Masuit.Tools is a comprehensive static utility library for .NET and ASP.NET Core development. It provides a broad collection of reusable helper methods and infrastructure components that cover common programming tasks without requiring dependency injection or instance management. The library is organized as flat utility classes, making its functionality directly accessible from anywhere in a project. The toolkit distinguishes itself through a wide range of integrated capabilities that go beyond typical utility libraries. It includes a multithreaded range-request file downloader with pause and

go-fastdfs is a distributed file system and object storage server designed for building private cloud storage. It provides a FastDFS compatible storage implementation that manages clusters of storage nodes to handle large-scale file uploads and downloads. The system focuses on high availability through a decentralized architecture that automatically synchronizes data and repairs failures across multiple machines without a central coordinator. It specifically supports resumable file storage via HTTP, allowing large transfers to be paused and resumed from the last successful byte to handle netw

Nuke is an image loading system designed to fetch, cache, and render images and short video clips within a user interface. It functions as an asset caching engine and a resumable download manager to handle the retrieval of remote media files. The framework includes a request priority manager to coordinate duplicate requests and order loading based on visual importance. It employs an image prefetching strategy to load visuals into memory before they are required and uses an LRU asset cache to reduce network traffic. The system covers broader capabilities in traffic management and data storage

HTTrack is a website mirroring tool that downloads entire websites to a local directory, preserving the relative link structure so the site remains fully navigable without an internet connection. It operates as an HTTP website downloader and offline browsing utility, capturing static copies of remote sites for long-term offline storage and archiving. The tool includes a resumable download state machine that persists progress, allowing interrupted transfers to continue without re-fetching already retrieved files. It also features an incremental synchronization engine that compares local and re

slskd is a headless network daemon and peer-to-peer file-sharing server for the Soulseek network. It functions as a network client and API gateway, allowing users to search for and share files via a web interface or a REST API. The project distinguishes itself through a focus on automation and remote management, featuring event-driven triggers that can execute system scripts or send webhooks. It supports advanced network routing via SOCKS5 proxies and provides a flexible deployment model that includes a dockerized client with volume mapping and environment-based configuration. The system cov

FastDFS is a distributed file system and object store designed as a high-capacity file server. It functions as a cluster storage manager that saves, syncs, and accesses large volumes of unstructured data across a network of distributed servers. The system uses unique identifiers for file retrieval and indexing instead of traditional hierarchical naming to avoid metadata bottlenecks. It manages file attributes through key-value metadata mapping and employs a distributed replication model to ensure high availability and data redundancy across storage groups. The project provides capabilities f

N_m3u8DL-CLI is a cross-platform .NET command-line interface designed for extracting and recording adaptive video streams. It functions as an HLS and DASH downloader that retrieves media from m3u8 and DASH playlist files, including the ability to capture ongoing live broadcasts with automatic duration limits. The tool includes a dedicated AES-128-CBC stream decryptor to handle protected video segments using provided keys and initialization vectors. To optimize transfer speeds, it utilizes a multi-threaded download model and supports custom HTTP header management to bypass server restrictions.

alt-sendme is an accountless peer-to-peer file transfer tool designed for sending files and folders directly between devices. It operates as a decentralized sharing service that utilizes portable access tickets for identity exchange instead of centralized user accounts. The project distinguishes itself through NAT and firewall traversal capabilities, using UDP hole punching and relay-based fallback routing to establish direct connections between remote devices. It supports multi-device data broadcasting, allowing a single file or folder to be shared with multiple recipients simultaneously thr

This is a tool for downloading videos, images, and audio from the Douyin social media platform using shareable URLs or profile links. It can download individual posts, entire user profiles including all posts and liked content, collections, and music tracks, with options for watermark-free and high-quality output. The tool also supports live stream recording, comment collection, and keyword-based content search with JSONL export. The project distinguishes itself through an integrated REST API server that accepts download and transcription requests, tracks job status, and exposes health check

This project is a JavaScript-based HTTP download manager and accelerator designed to increase file transfer rates within a web browser. It functions as a multi-threaded download accelerator that retrieves remote resources by splitting files into smaller segments for simultaneous downloading. The tool utilizes HTTP range requests to fetch multiple file segments in parallel, maximizing available network bandwidth. It manages this process through a client-side blob buffer and memory management system that stores binary data before assembling the segments into the final file. The system covers c

RxDownload is a multi-threaded download manager built with Kotlin and RxJava. It functions as a concurrent file transfer client and batch download controller, allowing for the retrieval of remote files using multiple threads to increase transfer speeds. The system provides a dedicated record management database for download tasks, enabling the retrieval of history through filtered lists and paginated results. It includes a centralized controller for executing bulk actions to start, stop, or delete groups of tracked download tasks simultaneously. The project covers real-time progress monitori

Prestissimo is a plugin for the PHP Composer package manager that implements parallel dependency downloading to reduce total installation time. It serves as an extension for the PHP ecosystem, acting as a concurrent dependency downloader. The project optimizes the retrieval of external libraries by replacing the standard sequential download process with parallel HTTP requests. This concurrency allows multiple dependency archives to be fetched simultaneously. The plugin handles the PHP dependency management workflow by managing concurrent HTTP streams and using asynchronous I/O processing to

M3U8-Downloader is a media utility and playlist client designed to download, decrypt, and play back fragmented video content from HLS streams. It functions as a high-performance downloader that captures segmented video from M3U8 playlists for offline local storage. The tool includes an AES-128 decrypter to unlock encrypted streams using specific keys and initialization vectors. It also provides mechanisms to inject custom HTTP headers into requests, allowing the tool to authenticate with video servers and bypass access restrictions. The application supports multi-threaded segment fetching an

Bili23-Downloader is a cross-platform tool designed for downloading high-quality videos, audio streams, and subtitles from the Bilibili platform. It functions as a media downloader and metadata extractor, enabling the backup and archival of online content to local storage. The project includes a media file organizer that uses custom naming templates to sort content into structured directory systems. It also provides utilities for exporting subtitles and scrolling comments, embedding cover art into video files, and selecting specific resolutions and audio formats. To increase retrieval speed,

iScript is a collection of Python automation scripts designed for file downloads and data extraction from various web services and cloud platforms. The project provides specialized tools for managing cloud storage, converting torrent links, retrieving music, and fixing archive encoding errors. The toolkit includes a music downloader that fetches high-quality audio tracks and applies ID3 metadata tags, as well as a magnet link converter that transforms torrent files and filters results by keyword. It also features a utility to correct character encoding discrepancies in zip archives created on

BilibiliDown is a cross-platform desktop application designed for downloading high-resolution videos, audio, and images from the Bilibili platform. It functions as a batch media downloader and content archiver, enabling the retrieval of content from user spaces, playlists, and curated favorites lists for local offline storage. The tool distinguishes itself through media processing and archiving capabilities, including the ability to save video supplements such as closed captions and bullet comments. It features a media transcoding tool to convert streams into standard audio and video formats

Boxplayer is a cloud media player and storage manager that enables high-definition video streaming and file administration across multiple cloud storage providers through a unified interface. It functions as a cloud media player with subtitle and audio support, a metadata organizer for structuring media libraries, and a high-speed download manager using a multi-threaded engine. The project implements a Model Context Protocol server, which exposes cloud storage and media management functions as programmable tools and context for AI agents. This allows for AI-driven storage automation and the a

Lux is a command line video downloader written in Go designed for extracting and saving video and audio from various websites. It functions as a concurrent media downloader that increases transfer speeds by splitting files into fragments and downloading them using multiple threads. The tool serves as a playlist download manager capable of retrieving entire video collections or specific ranges of items. It also operates as a proxy-enabled media client, supporting HTTP and SOCKS5 proxies and session cookies to access region-locked, private, or age-gated content. Additional capabilities include

Neo-Store is a privacy-focused open-source software manager that provides a centralized interface for discovering, installing, and updating applications with built-in security and privacy verification. It functions as an application privacy monitor, displaying tracker information, anti-features, and security vulnerabilities through dedicated visualization panels to support informed decision-making before installation. The project distinguishes itself through its repository client with mirror rotation, which synchronizes metadata from remote repositories by cycling through multiple mirrors to

SagerNet is an Android VPN client that routes device traffic through proxy protocols to bypass internet censorship and access restricted content. It functions as a censorship circumvention tool, distributing anti-censorship platforms and helping users evade network restrictions, while also serving as a platform for studying internet censorship patterns through scientific research. The application routes network traffic through proxy protocols by hooking into the Android VpnService API to create a local VPN tunnel, running persistently as a foreground service with a notification to prevent the

dufs is a self-hosted file manager and static file server that provides HTTP file hosting and WebDAV capabilities. It functions as a tool for sharing files over HTTP and managing folders remotely through both a web-based interface and the WebDAV protocol. The server distinguishes itself by mapping incoming requests directly to a local directory structure and offering a single-binary distribution for deployment. It supports the mounting of the server as a network drive via WebDAV and allows for the replacement of the default web interface using customizable asset overlays. The project covers

JHenTai is a specialized gallery client and media browser for accessing adult image galleries and manga. It functions as a multi-source media downloader and local image gallery manager, allowing users to find, view, and save content from remote sources. The application features biometric-based access control, using fingerprint scanning to secure private image libraries and account profiles. It also includes a fallback-based request routing system that redirects content requests to secondary sources when primary data providers fail to respond. The platform covers broad capabilities for conten

Pan-light is a tool for managing and downloading files from Baidu network storage. It provides high-speed file downloading and remote media streaming capabilities. The application uses concurrent segmented transfers to maximize network throughput and employs disk-persisted state tracking to resume interrupted downloads. It also includes a local proxy to bypass hotlinking protections, allowing remote videos to be streamed directly into a media player. The project features a cross-platform graphical user interface built with Go and Qt. Additionally, it supports remote software previews by runn

Uploader is a JavaScript library designed for managing reliable, resumable, and concurrent file transfers within web applications. It provides a client-side interface that leverages the browser's native file system capabilities to handle data selection and transmission. The library distinguishes itself by implementing a chunked data handling model, which breaks large files into smaller segments to ensure fault tolerance. This architecture allows for the automatic recovery of transfers following network interruptions or browser restarts, while maintaining state-persistent queues that enable us