copyparty
Portable file server with accelerated resumable uploads, dedup, WebDAV, FTP, TFTP, zeroconf, media indexer, thumbnails++ all in one file, no deps
v1.20.24
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About
copyparty is a portable file server for Windows that brings file hosting and transfer functions into a single application. It is distributed as one file and does not require additional dependencies. The software is open-source, making its licensing model relevant to users who want to inspect or use the project under an open-source license.
Its transfer features include accelerated uploads that can be resumed when interrupted. It also supports deduplication, which is designed to avoid storing duplicate file content. For compatibility with different file transfer workflows, copyparty provides WebDAV, FTP, and TFTP support. These protocols allow the same file server to fit use cases that rely on different client tools or transfer methods.
copyparty includes zeroconf support for network discovery and a media indexer for organizing media content. It can generate thumbnails and includes additional thumbnail-related functions described as thumbnails++. These capabilities place file serving, media browsing, and transfer protocol support within the same portable package.
As a Windows catalog entry, copyparty is suited to users looking for an open-source file server that runs on that platform without a separate dependency installation. MirrorNest mirrors the official build directly onto its own storage rather than presenting an altered distribution. Before publication, the mirrored build is scanned for malware, giving the catalog entry a defined distribution and screening process.
Architecture: x64
What's new in v1.20.24
- v1.20.19 (2026-07-27) fixed an FTP-server vuln (upload outside defined volumes) - v1.20.17 (2026-07-06) fixed a vuln when a volume has both filekeys and dirkeys enabled - v1.20.17 (2026-07-06) introduced csp nonces, possibly breaking some javascript-based plugins 🧪 new features - new option --redup (global or volflag) to convert local files between various dedup approaches fd4f4341 22915902 16a3f5d5 - turn full copies into reflinks/symlinks/hardlinks or convert between those - run it with --redup-dry (dryrun) to check for unexpected consequences - WARNING: maybe take a snapshot of your filesystem before enabling this; brand new code with little testing, read --help-redup and use with care - the feature is currently being stress-tested; results on tuesday - #1643 textfile-viewer can detect filetype from shebang (thx @botahamec!) 097b8305 - when dedup with reflink is enabled, then also dedup between volumes when possible (since reflink makes that safe) 735d6e00 5ddbce31 - option -i no to launch copyparty without the webserver, for indexing / testing / whatever c92435c2 🩹 bugfixes - if --dedup was enabled, then copying a file from one volume to another could dedup (create a symlink/hardlink/reflink) instead of a full copy 947d73ee - mainly an issue for portable storage such as flashdrives, and the main reason why --redup was added - the list of filenames given as input to xiu hooks did not have a trailing newline c688bb2e - #1611 volflag nosub would still result in empty folders from up2k ec4a95e1 - fix PRTY_NO_IFADDR 6867ccc5 🔧 other changes - iOS: further improved upload-speeds on buggy iOS versions 971a62cc - looks like apple is working on fixing this bug; iOS v27 made https way more stable but http is still just as broken, so improved the workaround a bit more - added --help-dedup and --help-redup 22915902 16a3f5d5 - add a warning that the sourceforge project is not official and probably malware bfc3cff8 🌠 fun facts - the railgun roulette vip-mix has the same bpm as the turn-signal on a honda jazz - on that note, this fantasy-OPNA remake is too awesome to leave out
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