• read-only demo server at https://a.ocv.me/pub/demo/
• docker image ╱ similar software ╱ client testbed

there is a discord server with an @everyone in case of future important updates, such as vulnerabilities (most recently 2026-03-08)

recent important news

• v1.20.9 (2025-02-25) fixed CVE-2026-27948 (XSS)

🧪 new features

• #1410 #376 #1224 new option --glang to autoselect UI-translation based on webbrowser's language (thx @stackxp!) ec3e0e7
• #1407 #1384 option to automatically switch between list-view and grid-view depending on folder contents (thx @icxes!) 822fa71 660ed7a 961a273
• #1447 audioplayer can now play bcstm / bfstm / brstm files (nintendo 3ds/wii bgm) 3a9ff67
• #1389 add 1000-based filesize-units in addition to 1024-based 43773f2
• #1395 reloc-by-wark, a pair of hooks to rename incoming uploads to a hash of the file contents 1e7de5d
• option --rlo to change the logrotate-counter for -lo 8b98688
• add --certkey to specify certificate and key as separate files 8c7cdf8
  • but the built-in HTTPS server should still not be trusted
• config-files can now use OS environment-variables anywhere in the [global] config section cbd82b6 e52bbed
  • by default, only the syntax ${VAR} is supported, not $VAR or %VAR%
  • previously, a small handful of global-options already supported this (c lo hist dbpath ssl_log), but they also supported the $VAR syntax, which is no longer the case
  • if the old $VAR syntax is detected, copyparty will crash on startup, suggesting the following remedies (choose one!) in the log:
    1. update the config-value to the new ${VAR} syntax (recommended)
    2. allow the old syntax with global-option --env-expand 1 (risky)
    3. ignore the old syntax and only expand the new syntax with global-option --env-expand 2
    4. disable all environment-variable expansions with PRTY_NO_ENVEXPAND=1

🩹 bugfixes

• #1437 webdav clients can now PROPFIND a file with depth: infinite which at least webdav4 does e00f2b4
• #1392 navigating into a subfolder using a dks dirkey (default-disabled) could fail 228c3df
• #1446 #1330 #1362 fix some small edgecases with the rightclick-menu (thx @icxes!) 874e0e7
• #1403 #1396 audioplayer: fix ui-crash when folder contains an m3u-file and sort-order is changed during playback (thx @icxes!) 198f631
• #1428 #1427 when --magic was enabled, nameless uploads of textfiles would get the file-extension .ssa instead of .txt (thx @Scotsguy!) ed516dd
• #1449 on some filesystems, the tail/follow function would spam the log with reopened at byte XXX 8173018
• #1401 on windows, a spec-violating basic-upload could delay that upload by a few seconds 6fb1287
• on macOS, u2c would clear the terminal on exit, even with -ns 238887c
• audio-files in a videofile trenchcoat did not thumbnail correctly 1066dc3

🔧 other changes

• #1387 added gentoo packaging (thx @mid-kid!) fb5384f
• #1425 improved FreeBSD / OpenBSD support (thx @chilledfrogs!) f561318 745d82f
• #1352 new handler: fail2ban (thx @Lomaiin!) 26e663d
• improve errormessage when the server's OS-HDD blips out of existence d1517d0
• #1439 improve IPv6 autoban IP-range (thx @SnowSquire!) f6dc1e2
• ensure opus transcodes will at most have 2 audio channels (stereo) b31f290
• #1417 smb-server: probably add IPv6 support a5d859d
• --list-nics and --list-ips to show autodetected network-adapters and IPs 8d4363d
• docs:
  • nixos module-override example (thx @Scotsguy!) 0b16e87
  • make it even more obvious that --allow-csrf is a bad idea 9a724b0
  • mention --urlform get to disable message-to-serverlog ac05b4f
  • readme: improve shadowing phrasing 003c68d
  • devnotes: explain the vendored dependencies 971f8ef

🌠 fun facts

• this release includes code written at abs(unit)
  • btw that pdp had an IPv6 lease and browsed the internet :^)
    • hasn't connected to copyparty though (yet...)
• this release was powered by 一体いつから (TaKo Hardcore bootleg) followed by Fighting My Way (YUPPUN Hardcore Remix) (shd is a good dj)

💾 what to download?

• except for u2c.exe, all of the options above are mostly equivalent
• the zip and tar.gz files below are just source code
• python packages are available at PyPI