Every open-source file transfer project we track, scored on maintenance, momentum and licence — so you can tell the live competitors from the abandoned repositories.
File Transfer has 58 open-source implementations in this dataset, of which 28 show real momentum and 4 are dormant or abandoned. The leader is copyparty with 46k stars against a category median of 1.9k — roughly 24x the typical project. Saturation score 74/100: Crowded. Free, maintained alternatives already dominate this category.
Assume every prospect can find a free version in five minutes. Your wedge has to be something open source structurally cannot deliver: compliance, support SLAs, managed hosting at scale, or a workflow the maintainers refuse to build.
The practical test in this category: copyparty is the reference implementation at 46k stars, and 28 of 58 projects are still shipping. A buyer evaluating you will find at least one maintained free option, so your pricing and positioning have to answer "why not self-host copyparty?" in the first minute.
File Transfer
Portable file server with accelerated resumable uploads, deduplication, WebDAV, FTP, zeroconf, media indexer, video thumbnails, audio transcoding, and write-only folders, in a single file with no mand
File Transfer
Free cross-platform bittorrent client with a feature rich Web UI for remote access.
File Transfer
Web File Browser with a Material Design web interface.
File Transfer
SeaweedFS is an open source distributed file system supporting WebDAV, S3 API, FUSE mount, HDFS, etc, optimized for lots of small files, and easy to add capacity.
File Transfer
Cloud native image registry that stores, signs, and scans content.
File Transfer
Easy file sharing from the command line.
File Transfer
Fast, easy, free Bittorrent client.
Alternative to Dropbox, Google Drive
Web file manager that lets you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, or Google Drive.
File Transfer
Flexible, fully featured and highly configurable SFTP server with optional FTP/S and WebDAV support.
File Transfer
CLI tool to serve files and dirs over HTTP.
File Transfer
Securely and anonymously share a file of any size.
File Transfer
Web based File Manager in PHP, simple, fast and small file manager with a single file.
File Transfer
TagSpaces is an offline, cross-platform file manager and organiser that also can function as a note taking app. The WebDAV version of the application can be installed on top of a WebDAV servers such a
File Transfer
A modern client-server application for the Soulseek file sharing network.
File Transfer
A lightweight, fast and reliable file sharing server that is commonly used with ShareX, offering a react-based Web UI and fast API.
File Transfer
FileGator is a powerful multi-user file manager with a single page front-end.
File Transfer
Minimalist, easy-to-host service for sharing images and other files.
File Transfer
Lightweight server to share files, which expire after a set amount of downloads or days. Similar to the discontinued Firefox Send, with the difference that only the admin is allowed to upload files.
File Transfer
File uploader service that aims to to be easy to use and set up. It accepts files, photos, documents, anything you imagine and gives you back a shareable link for you to send to others.
File Transfer
A production-ready vendor-neutral OCI-native container image registry.
File Transfer
Simple PHP based directory lister that lists a directory and all its sub-directories and allows you to navigate there within.
File Transfer
Upload files and assign them to specific clients you create. Give access to those files to your clients.
File Transfer
Zenko CloudServer, an open-source implementation of a server handling the Amazon S3 protocol.
File Transfer
Simple, robust, BitTorrent tracker (client and server) implementation.
File Transfer
Simple file sharing solution with robust up-/download-resume and password protection.
File Transfer
Theme built to enhance the experience of browsing web directories, using the mod_autoindex Apache module and some CSS to override the default style of a directory listing.
File Transfer
Scalable and friendly temporary file upload system.
File Transfer
Image sharing platform designed to give users complete control over their media sharing experience.
File Transfer
Share files easily over the internet between authenticated and anonymous users (both ways) with resumable up- and downloads.
File Transfer
Simple imaging hosting platform that allows you to easily host, edit, and share images.
File Transfer
Stores files and deletes after X amount of time.
File Transfer
A simple, fast and lightweight file manager with instant sharing tools integration, like ShareX (a free and open-source screenshot utility for Windows).
File Transfer
Web file manager with uploads, tagging, share links, gallery/table views, and an in-browser editor.
File Transfer
Multi lingual image hosting service with a simple resizing and upload API.
File Transfer
File sharing platform with pluggable infrastructure, where uploads and downloads go directly between clients and S3-compatible storage.
File Transfer
Web-based torrent client with instant audio/video streaming.
File Transfer
Quick and simple file sharing between different devices.
File Transfer
A temporary file sharing platform. Focused on providing one-time, temporary file and text upload, processing, and sharing services.
File Transfer
Single script file manager.
File Transfer
Browse remote folders, upload files, delete, rename, download and stream files to VLC/mpv.
File Transfer
File sharing platform with support for logins, reverse shares, share expiry, S3 Buckets, advanced authentication, ClamAV for security scans and more (fork of Pingvin Share).
File Transfer
Easy file sharing with server-side encryption, curl/httpie/wget compliant.
File Transfer
File sharing application based on unique and temporary links.
File Transfer
Simple and user-friendly, breakpoint-resumable peer-to-peer text, image, and file transfer tool based on WebRTC.
File Transfer
A nonbloated, modern, and highly configurable file/screenshot vault server with support for ShareX, Flameshot, and Spectacle. Offers OCR search and more.
File Transfer
File and link sharing platform with URL shortening, code snippet sharing, and file uploads, featuring customizable expiration, privacy settings, and QR codes.
File Transfer
A simple, self-hosted file-sharing web app, powered by Django.
File Transfer
One-click-fileshare project. Select your file, upload, and share a link. That's it.
Showing 48 of 58
100 maintained · leader Mastodon
58 maintained · leader Dify.ai
40 maintained · leader revealjs
36 maintained · leader Jellyfin
29 maintained · leader Strapi
27 maintained · leader HyperSwitch
Existence is not competition. A project competes with you only if it is maintained, findable, deployable by your buyer and licensed for their use. Most projects fail at least one of those tests. Run all four before you shelve an idea — or before you assume you have a clear run.
Stars are a lifetime counter with no decay, so a project abandoned in 2022 still looks like a leader in 2026. In this dataset 149 projects are dormant, abandoned or archived, and several of them sit in the top decile by stars. Sort by momentum and commit activity instead — popularity tells you the project was once interesting, maintenance tells you whether it will still be there when your customer needs a bug fixed.
When a prospect says 'we could just self-host the free one', they are usually comparing your price against zero. The real comparison is your price against hosting, upgrades, backups, security patching, integration work and the engineer hours behind all of it. Quantifying that number is the single most effective response to a free-alternative objection — and it is more persuasive coming with a spreadsheet than with a feature list.
Founders treat licensing as a legal footnote and then discover it dictates strategy. Permissive licences allow closed commercial forks, which is why so many managed services exist around MIT and Apache projects — and also why your differentiation cannot be the code itself. Copyleft licences, especially AGPL, remove the closed-wrapper option entirely, which reduces competition but restricts you too. Source-available licences exist precisely to stop the wrapper business.
Search this database by category and by the commercial product you would replace. It covers 1665 projects across 130 categories, each mapped to the paid tool it substitutes. If your category shows a "Crowded" verdict, a maintained free version almost certainly exists and your positioning has to account for it.
No. It means free is your price anchor. Plenty of large companies were built next to a good open-source project — the ones that failed were the ones selling the same job at a price the free tool made indefensible. Find the part of the job the project deliberately does not do, and sell that.
Each category gets a 0–100 score built from three inputs: how many implementations exist, what share of them are still actively maintained, and how far ahead the leading project is compared with the category median. 62+ is Crowded, 38–61 Contested, under 38 Open. 11 categories are Crowded and 88 are Open.
A project has momentum when it committed code in most of the last twelve months, shipped a release recently and is not archived. 736 of 1665 projects qualify. This is the single most useful filter here — it strips out the popular-but-dead repositories that make a category look more competitive than it is.
It depends entirely on the licence. MIT, Apache and BSD let you build and sell closed products on top. GPL and AGPL require derivative work to stay open, and AGPL extends that to network use, which blocks most SaaS wrappers. BSL, SSPL and Commons Clause are source-available, not open source, and usually restrict competing commercial use outright.
IdeaProof scores your idea against real competitors, market size and 1,000+ documented startup failures in about two minutes.
Validate your idea free