diff --git a/.prettierrc b/.prettierrc
deleted file mode 100644
index d25507ab2..000000000
--- a/.prettierrc
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "semi": false,
-  "arrowParens": "avoid",
-  "singleQuote": true,
-  "printWidth": 120,
-  "tabWidth": 2,
-  "useTabs": false,
-  "jsxSingleQuote": false,
-  "trailingComma": "es5",
-  "endOfLine": "lf"
-}
diff --git a/documentation/resources.md b/documentation/resources.md
index b689447dd..78a64a8a7 100644
--- a/documentation/resources.md
+++ b/documentation/resources.md
@@ -5,7 +5,6 @@ A collection of useful tools, documentation and other resources.
 ## Code style and maintainability
 
 - [ESLint documentation](https://eslint.org/docs/v8.x)
-- [Prettier documentation](https://prettier.io/docs/en)
 - [qlty.sh](https://qlty.sh/gh/UniversityOfHelsinkiCS/projects/oodikone)
   - Qlty.sh replaced Code climate which was introduced by Riku
   - The usefulness of qlty.sh is sometimes questionable
diff --git a/package-lock.json b/package-lock.json
index 38911adb5..7a14da351 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,6 @@
         "oxfmt": "0.58.0",
         "oxlint": "1.73.0",
         "oxlint-tsgolint": "0.25.0",
-        "prettier": "3.5.3",
         "stylelint": "^17.6.0",
         "stylelint-config-standard": "^40.0.0"
       },
@@ -5178,22 +5177,6 @@
         "node": ">= 0.8.0"
       }
     },
-    "node_modules/prettier": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.5.3.tgz",
-      "integrity": "sha512-QQtaxnoDJeAkDvDKWCLiwIXkTgRhwYDEQCghU9Z6q03iyek/rxRh/2lC3HB7P8sWT2xC/y5JDctPLBIGzHKbhw==",
-      "dev": true,
-      "license": "MIT",
-      "bin": {
-        "prettier": "bin/prettier.cjs"
-      },
-      "engines": {
-        "node": ">=14"
-      },
-      "funding": {
-        "url": "https://github.com/prettier/prettier?sponsor=1"
-      }
-    },
     "node_modules/prop-types": {
       "version": "15.8.1",
       "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
diff --git a/package.json b/package.json
index 90bb49c19..e8aafecd7 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,6 @@
     "fmt": "oxfmt",
     "fmt:check": "oxfmt --check",
     "stylelint": "stylelint",
-    "prettier": "prettier",
     "cli": "./cli.sh",
     "logs": "docker compose --file docker-compose.yml logs backend frontend sis-updater-worker sis-updater-scheduler jami -f",
     "logs:all": "docker compose --file docker-compose.yml --profile oodikone --profile updater logs -f",
@@ -56,7 +55,6 @@
     "oxfmt": "0.58.0",
     "oxlint": "1.73.0",
     "oxlint-tsgolint": "0.25.0",
-    "prettier": "3.5.3",
     "stylelint": "^17.6.0",
     "stylelint-config-standard": "^40.0.0"
   }