• 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 2025-07-30)

recent important news

• v1.18.9 (2025-08-01) fixed CVE-2025-54796 (Denial-of-Service)
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• new translations:
  • #486 French (thx @Tr3yWay996, @Packingdustry, @Alee14, @jakubiakfr, @Equinoxs!) e9ddfcc 7aa2148 b87f8f1
  • #463 Polish (thx @pufereq and @daimond113!) 392a4db
  • #537 Nynorsk (thx @chinatsu!) 3931bc2
• #549 custom mdns domain 3c78c6a

🩹 bugfixes

• #539 FTP glitches when running on windows 8ba9887
• #555 global-config didn't load through PRTY_CONFIG (thx @icxes!) 074e106
• macos: could take a while to establish webdav connection from finder a01870b
• ux:
  • dropdown colors 347cf6a
  • case-sensitivity in filters e5e8229
  • iOS being too enthusiastic about using saved passwords 03acd65

⚠️ not the latest version!

• 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 2025-07-30)

recent important news

• v1.18.9 (2025-08-01) fixed CVE-2025-54796 (Denial-of-Service)
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #511 login with username and password (not just password) can now optionally be enabled with --usernames 346515c
  • if you have enabled password hashing (ah-alg: argon2 or similar) then you will need to hash your passwords again after enabling usernames, hashing them as username:password:
• #468 add Greek translation (thx @chamdim!) 50f4618 392abd0
• #471 add Czech translation (thx @kubakubakuba!) c955658
• #515 support systemd socket acivation (thx @mati1210!) 9b9d2a9
• #523 add QR-code to the connectpage bcc3b15
• #513 optional EOL-conversion for texteditor 8b31ed8
• controlpanel refresh-button now toggles automatic refresh 7ae84de

🩹 bugfixes

• fix stuck uploads when the up2k database (e2d) is not enabled 4a04356
  • if more than 60'000 files were uploaded and there were several dupes of some files, they could get stuck and never upload
  • upload performance is improved remarkably by enabling e2d so such huge uploads non-e2d had not been tested in a long time
• #467 #470 fix ui-crash when exporting links of all uploaded files to clipboard (thx @geekalaa!) 0df1901
• #487 fix ui-crash when the location url-part is // 0f55a1a
• fix viewing .MD files (8a0746c)

🔧 other changes

• when a reverse-proxy is detected, force explicit configuration of --rproxy to obtain correct client IP 3f8cb7e
  • a bit inconvenient, but helps prevent potentially-dangerous misconfiguration
  • the necessary configuration changes are explained in the serverlog (you can't miss it)
  • thanks to @person4268 for pointing out that there was room for improvements!
• failed login attempts now only log a sha512 hash of the provided password
  • to see login-attempts with incorrect passwords as plaintext like before, log-badpwd: 1
• #502 add systemd user services and templated services (thx @icxes!) 34d98e9
• #475 improve helptext for multivalue global-options c2ac57a
• #475 add chungus.conf, massive extensive nonsensical demo config b664ebb
• try to detect proxies with incorrect caching behavior 9e980bb
• recent-uploads now support ie9 a57f7cc
• languages and themes are now dropdowns a9ee4f2
• copyparty.exe: upgrade python to 3.13.6 a98360f
• introduce copyparty-en.py, english-only edition of copyparty-sfx.py to save space 33497e6

🗿 known issues

• the copyparty.pyz in this release is english-only, and does not include the translations -- they got lost in transit while adjusting the buildscripts to make copyparty-en.py

⚠️ not the latest version!

• 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 2025-07-30)

recent important news

• v1.18.9 (2025-08-01) (PREVIOUS RELEASE) fixed CVE-2025-54796 (Denial-of-Service)
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #426 add Dutch translation (thx @DeStilleGast!) 3798e19
• #458 add Italian translation (thx @AOTREVAI!) a38e6e6
• #456 transcode to flac/wav (thx @missaustraliana!) b469db3 b2d48c6 0d09fb6
• #439 config-file can be provided through PRTY_CONFIG (thx @icxes!) 971360e
• #459 videos can become folder thumbnails 16bbcce
• add --idp-cookie, session-tickets for IdP auth (performance boost) f9502c3
  • useful when the IdP-server becomes a bottleneck

🩹 bugfixes

• #412 fix PUT-uploads into volumes with nosub volflag 47fa4a9
• #435 ignore spurious exceptions from browser extensions 39e5582
• #449 IPv6 QR-Code didn't include port 66a5bf3
• #295 do not force d2d in blank vfs (introduced in v1.18.3) 848315c

🔧 other changes

• #440 improved finnish translation (thx @icxes!) a68d5b0
• point to the -nc option in the "at max connections" warning 153d240
• the play-button now indicates "play-as-audio" for video-files 40d56bb
• docs:
  • #411 improve password-hashing instructions (thx @chinponya!) c69c7c8
  • #429 improve --cert helptext (thx @kzshantonu!) 7e3825f
  • #413 copyparty is Wii Internet Channel compatible! (thx @techflashYT!) 50f1629
  • #461 how to use groups without IdP e85a710
  • mention that WebDAV and OpenGraph are incompatible by default (and how to fix that) 0bc1b8f
  • #345 short explanation about the sfx in quickstart ae5eefc
• #398 pypi-package now has extra-group all 6eaf8af

⚠️ not the latest version!

• 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 2025-07-30)

⚠️ ATTN: this release fixes a Denial-of-Service vuln

CVE-2025-54796: an unauthenticated user could make the server grind to a halt by accessing a particular URL

recent important news

• v1.18.9 (2025-08-01) fixed CVE-2025-54796 (Denial-of-Service)
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #310 translated to Spanish (thx @herruzo99!) a1dfd0b
• #350 translated to Ukrainian (thx @MrMebelMan!) fea45e4
• #321 translated to Russian (thx @A1Asriel!) 0b05c72
• #381 translated to Finnish (thx @icxes and @Permik!) 7ecedb2
  • haha it says surf
• #312 add option to use localtime in the UI ad23b25
• #386 initial packaging for debian (thx @Beethoven-n!) 3c6f0b1

🩹 bugfixes

• CVE-2025-54796 / GHSA-5662-2rj7-f2v6 09910ba
• #347 fix upload-abort when uploading to a share 6d6d79f
• fix xiu backlog dropping on restart 3222ba3
• #375 fix crash on really old versions of python2.7 (thx @bb!) b69d590
• #388 another python2.7 fix: improve unicode support in u2c (thx @KevinXuxuxu!) 9c19753
• log creator of new/blank markdown docs d0d2f20
• #400 config didn't support indenting with tabs c160428

🔧 other changes

• ack was changed to continue 4fa7be2

🌠 fun facts

• the translations have made the sfx size balloon from 766 to 845 KiB in under a week... nice! keep em coming 🎉

⚠️ not the latest version!

• 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 2025-07-28)

recent important news

• v1.18.7 (2025-07-30) (PREVIOUS RELEASE) fixed XSS in the recent-uploads page
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🩹 bugfixes

• #354 fix copyparty-sfx.py failing to start on certain versions of python c17ce48

⚠️ not the latest version!

• 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 2025-07-30)

⚠️ ATTN: this release fixes an XSS vulnerability

GHSA-8mx2-rjh8-q3jq, could let an attacker execute arbitrary JS by tricking you into clicking a malicious URL

Soon there won't be many of these left, surely. Huge thanks to @Ju0x for finding and reporting this.

recent important news

• v1.18.7 (2025-07-30) fixed XSS in the recent-uploads page
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #265 uid/gid for new files can be configured per-volume f195998
  • has preconditions; see readme
• #212 add German translation (thx @rGunti, @Scotsguy, @chocolateimage) 9d32564

🩹 bugfixes

• GHSA-8mx2-rjh8-q3jq a8705e6
• #276 windows: fix segfault (thx @kernel1994 for debugging!) a9d07c6
• #272 webdav: send disk-size and disk-free to clients 4988a55
• #285 use disk-free sans root-reserve on linux (thx @Arklaum!) c3cc2dd
• cors-check was funky on IPv6 e9684d4
• #325 upgrade sharex example for newer versions 6016ec9
• #300 restore support for old versions of python 2.7 b7ca6f4

🔧 other changes

• shares: the config POST-target is now always the webroot (for ease of IdP configuration) fb7cbc4
• unlist: now applies to the navpane too fbf17be
• windows: show disk-usage as well, not just disk-free 5c6341e
• #228 nix-pkg improvements (thx @dtomvan!) 4915b14
• docker-compose: ensure logs appear in realtime 3cde1f3
• mention that IdP-volumes and users can now be persisted 6069bc9
• #316 explain a scary-looking thing in the code 053de61

⚠️ not the latest version!

• 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 2025-07-28)

recent important news

• v1.18.5 (2025-07-28) (PREVIOUS RELEASE) fixed XSS in display of media tags
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #201 add support for reflink-based dedup on cow filesystems df9feab
  • combine --dedup with --reflink to enable, or volflags with same name
  • a better and safer alternative to the other dedup approaches (symlink/hardlink), but only possible to use in some cases:
    • needs linux 5.3 or newer, python 3.14 or newer, btrfs/xfs/zfs
    • not available in the docker images yet; needs a new version of python, so maybe next alpine release (november/december 2025)
• ratelimit password changes to impede bruteforcing a2601fd
  • limit is set by --ban-pwc (default is 5 changes in 60min)

🩹 bugfixes

• #240 nixos: fix unixgroups issue (thx @chinponya!) 7c9c962
• #246 cbz: use correct page for thumbnail (thx @Scotsguy!) 542a1de

🔧 other changes

• volflag nosub now also prevents mkdir 0f2c623
• improve documentation:
  • #229 use the same example UDS path everywhere cb019af
  • example nginx config had misleading cloudflare comment (thx @jmi2k!) 674fc1f
  • more readable --help-chmod 03d23da
  • #244 fix typo in --help 4f013f6
• #242 hide "use real pw" on connectpage if no accounts (thx @toast003!) 025942a
• #211 docker: remove deprecated attribute (thx @ptweezy!) 5b98e10
• #190 add the feature-showcase video to the readme (thx @RustoMCSpit!) 43e6da3

⚠️ not the latest version!

• 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 2025-07-28)

⚠️ ATTN: this release fixes an XSS vulnerability

GHSA-9q4r-x2hj-jmvr, exploitable in two different ways, could let an attacker execute arbitrary javascript on other users:

• either: tricking someone into clicking a malicious URL to load and execute javascript
• or: uploading a malicious audio file to the server, affecting any successive visitors

so, with new and curious eyes on the project, we are starting off with a bang. Huge thanks to @altperfect for finding and reporting this earlier today.

recent important news

• v1.18.5 (2025-07-28) fixed XSS in display of media tags
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #214 option to stop playback after one song, and/or at end of folder 6bb27e6

🩹 bugfixes

• GHSA-9q4r-x2hj-jmvr 895880a
• block external m3u files 2228f81
• #202 the connect-page could show IP-address when it should have used hostnames/domains b0dec83
• scrolling locked after tailing a file and closing it creatively d197e75

🔧 other changes

• #189 the SameSite cookie parameter now defaults to Strict, increasing CSRF protection ca6d0b8
  • new option --cookie-lax reverts to previous value Lax
• docker: add FTPS support b419984

⚠️ not the latest version!

• 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 2025-02-25)

recent important news

• v1.16.15 (2025-02-25) fixed low-severity xss when uploading maliciously-named files
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #182 Landmarks edba7ff
  • detects that a storage backend is glitching out and disengage the up2k-database as a precaution
• #183 quickdelete 21a96bc
  • new togglebutton qdel in the UI which reduces the number of deletion confirmations by one
  • global-option --qdel=0 which can bring it all the way to zero (good luck)

🩹 bugfixes

• fix unpost in recently created shares 2d322dd
• fix filekeys on windows df6d4df

⚠️ not the latest version!

• 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 2025-02-25)

recent important news

• v1.16.15 (2025-02-25) fixed low-severity xss when uploading maliciously-named files
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• #181 the default chmod (unix-permissions) of new files and folders can now be changed 9921c43
  • --chmod-d or volflag chmod_d sets directory permissions; default is 755
  • --chmod-f or volflag chmod_f sets file permissions; default is usually 644 (OS-defined)
  • see --help-chmod which explains the numbers

🩹 bugfixes

• #179 couldn't combine --shr (shares) and --xvol (symlink-guard) 0f0f8d9
• #180 gallery buttons could still be clicked when faded-out 8c32b0e
• rss-feeds were slightly busted when combined with rp-loc (location-based proxying) 56d3bcf
• music-playback within search-results no longer jumps into the next folder at end-of-list 9bc4c5d
• video-playback on iOS now behaves like on all other platforms 78605d9
  • (it would force-switch into fullscreen because that's their default)

⚠️ not the latest version!