Sonar v2.1.50

Sonar is a lightweight and effective anti-bot plugin for Velocity, BungeeCord, and Bukkit.
This updates implements support for Minecraft 1.21.11 and introduces an experimental CAPTCHA design.
  • Minecraft 1.21.11 Support #534
  • Implement new CAPTCHA design complex (PoC)
Notice about Sonar 3.0
If you are interested in Sonar 3.0, please join the Discord server.
This updates fixes minor incompatibilities with some Velocity forks. In addition, some other minor bugs and inconsistencies have been resolved.

Full Changelog
  • Don't invoke initChannel if the channel is closed
  • Disable max-online-per-ip if it's 0 or negative
  • Fix filled_map item type id on 1.21.9+
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl

Notice about Sonar 3.0
If you are interested in Sonar 3.0, please join the Discord server.
This update adds support for PostgreSQL as a database type (thanks to sk8erboi17 in #522).

Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl

Notice about Sonar 3.0
If you are interested in Sonar 3.0, please join the Discord server.
This update introduces support for Minecraft version 1.21.9.

Full Changelog
  • Use radial gradient for CAPTCHA text
  • 1.21.9 Support #520
  • Include font license for kingthings fonts
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl

Notice about Sonar 3.0
If you are interested in Sonar 3.0, please join the Discord server.
This update fixes several issues with 1.21.7-1.21.8 clients. Additionally, the maximum number of packets during the verification is now configurable.

Full Changelog
  • Disable expected position but got client tick end check
  • Update Georgian translations #514
  • Update Dutch translations
  • Make max packet count configurable
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
This update implements proper MiniMessage support for 1.21.5+. Additionally, client ticking checks have been improved (thanks to FallenCrystal).

Full Changelog
  • Improve client tick check for 1.21.2+ clients #496
  • Make font loading error slightly more descriptive
  • Bump adventure from 4.21.0 to 4.24.0
  • Bump adventure-platform from 4.4.0 to 4.4.1
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
This update fixes an issue where the online players per IP check would not work at all. Additionally, a few dependencies have been updated and 1.21.8 is now fully supported on Bukkit.

Full Changelog
  • Fix max online per IP check
  • 1.21.8 Support (server-only)
  • Update velocity-proxy dependency
  • Bump net.kyori.indra.git from 3.1.3 to 3.2.0
  • Bump com.diffplug.spotless from 7.1.0 to 7.2.1
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
This update fixes a false positive caused by a Minecraft bug. Additionally, admins can now show the number of CAPTCHA attempts left in the verification.captcha.incorrect message using the placeholder <attempts-left>.

Full Changelog
  • Remove locale regex check due to a Minecraft bug
  • Add missing translations for the new feature
  • Make incorrect captcha message contain attempts left
  • Allow "fell through" check to be skipped by a CAPTCHA
Massive thanks to the sponsors of Sonar who help keep this project running: Hydoxl
EULA: Free EULA
19,170 Views
471 Downloads
Mar 30, 2022 Published
Jul 12, 2026 Updated
5.00 star(s)
Average rating (10)
4.7 MB File size
Open source
  1. Yes
DRM-free
  1. Yes
Unobfuscated
  1. Yes
Type
  1. Protection
  1. Patch
Supported software
  1. Bukkit
  1. Spigot
  1. Paper
  1. Bungee
  1. Folia
  1. Velocity
  1. Purpur
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
  1. 1.19
  1. 1.18
  1. 1.17
  1. 1.16
  1. 1.15
  1. 1.14
  1. 1.13
  1. 1.12
  1. 1.11
  1. 1.10
  1. 1.9
  1. 1.8
  1. 1.7
Supported languages
  1. English
  1. Spanish
  1. Russian
  1. German
  1. French
  1. Portugese
  1. Polish
  1. Turkish
  1. Chinese
  1. Indonesian
  1. Italian
  1. Dutch
  1. Czech
Includes DRM
No
Source access (legacy)
Open source
Crediting original
https://github.com/jonesdevelopment/sonar/contributors
Creator
Owner
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19,170 Views
471 Downloads
Mar 30, 2022 Published
Jul 12, 2026 Updated
5.00 star(s)
Average rating (10)
4.7 MB File size
Open source
  1. Yes
DRM-free
  1. Yes
Unobfuscated
  1. Yes
Type
  1. Protection
  1. Patch
Supported software
  1. Bukkit
  1. Spigot
  1. Paper
  1. Bungee
  1. Folia
  1. Velocity
  1. Purpur
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
  1. 1.19
  1. 1.18
  1. 1.17
  1. 1.16
  1. 1.15
  1. 1.14
  1. 1.13
  1. 1.12
  1. 1.11
  1. 1.10
  1. 1.9
  1. 1.8
  1. 1.7
Supported languages
  1. English
  1. Spanish
  1. Russian
  1. German
  1. French
  1. Portugese
  1. Polish
  1. Turkish
  1. Chinese
  1. Indonesian
  1. Italian
  1. Dutch
  1. Czech
Includes DRM
No
Source access (legacy)
Open source
Crediting original
https://github.com/jonesdevelopment/sonar/contributors
Creator
Owner
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