diff --git a/app/Console/Commands/Egg/NormalizeEggCommand.php b/app/Console/Commands/Egg/NormalizeEggCommand.php
new file mode 100644
index 000000000..cbe60ca3d
--- /dev/null
+++ b/app/Console/Commands/Egg/NormalizeEggCommand.php
@@ -0,0 +1,152 @@
+<?php
+
+namespace App\Console\Commands\Egg;
+
+use App\Enums\EggFormat;
+use App\Exceptions\Service\InvalidFileUploadException;
+use App\Models\Egg;
+use App\Services\Eggs\Sharing\EggExporterService;
+use App\Services\Eggs\Sharing\EggImporterService;
+use Carbon\Carbon;
+use Illuminate\Console\Command;
+use Symfony\Component\Yaml\Yaml;
+
+class NormalizeEggCommand extends Command
+{
+    protected $description = 'Upgrades egg json/yaml to latest format as yaml';
+
+    protected $signature = 'p:egg:normalize {file} {--delete-original}';
+
+    public function __construct(
+        private EggExporterService $exporter,
+    ) {
+        parent::__construct();
+    }
+
+    public function handle(EggImporterService $importer): int
+    {
+        $inputFile = $this->argument('file');
+        $unparsed = file_get_contents($inputFile);
+        if ($unparsed === false) {
+            $this->error("Failed to read file: {$inputFile}");
+
+            return Command::FAILURE;
+        }
+        $extension = strtolower(pathinfo($inputFile, PATHINFO_EXTENSION));
+
+        $this->info("Importing {$inputFile}");
+
+        $format = match ($extension) {
+            'yaml', 'yml' => EggFormat::YAML,
+            'json' => EggFormat::JSON,
+            default => null,
+        };
+        if (is_null($format)) {
+            $this->error(" -> unsupported extension {$extension} for {$inputFile}");
+
+            return Command::FAILURE;
+        }
+
+        try {
+            $eggArray = $importer->parse($unparsed, $format);
+        } catch (InvalidFileUploadException) {
+            $this->error(" -> unsupported file version, is it actually an egg? ({$inputFile})");
+
+            return Command::FAILURE;
+        }
+
+        if (
+            !array_key_exists('meta', $eggArray) ||
+            !is_array($eggArray['meta'])
+        ) {
+            $this->error(" -> does not contain existing meta or meta is not array, is it actually an egg? ({$inputFile})");
+
+            return Command::FAILURE;
+        }
+        if (!array_key_exists('exported_at', $eggArray)) {
+            $this->error(" -> does not contain existing exported_at, is it actually an egg? ({$inputFile})");
+
+            return Command::FAILURE;
+        }
+        if (
+            !array_key_exists('update_url', $eggArray['meta']) ||
+            !is_string($eggArray['meta']['update_url'])
+        ) {
+            $this->error(" -> does not contain existing meta.update_url or is not a string, is it actually an egg? ({$inputFile})");
+
+            return Command::FAILURE;
+        }
+
+        // We upgraded our in-memory array when we imported, so set to latest version before export
+        $eggArray['meta']['version'] = Egg::EXPORT_VERSION;
+        $eggArray['meta']['update_url'] = self::replaceExtension($eggArray['meta']['update_url']);
+        self::fixVariableRules($eggArray);
+
+        $outputFile = self::replaceExtension($inputFile);
+
+        if ($outputFile === $inputFile && !$this->hasFileChanged($unparsed, $eggArray)) {
+            $this->info(' -> no changes required');
+
+            return Command::SUCCESS;
+        } else {
+            $eggArray['exported_at'] = Carbon::now()->toAtomString();
+        }
+
+        $this->info(" -> exporting to {$outputFile}");
+        $yaml = $this->eggToYaml($eggArray);
+        if (file_put_contents($outputFile, $yaml) === false) {
+            $this->error(" -> failed to write output file: {$outputFile}");
+
+            return Command::FAILURE;
+        }
+
+        if ($this->option('delete-original') && $outputFile !== $inputFile) {
+            $this->info(' -> deleting input file as requested');
+            if (!unlink($inputFile)) {
+                $this->warn(" -> failed to delete original file: {$inputFile}");
+            }
+        }
+
+        return Command::SUCCESS;
+    }
+
+    private static function replaceExtension(string $path): string
+    {
+        return preg_replace('/^(.*\.)(?:yml|json|yaml)$/', '$1yaml', $path);
+    }
+
+    /**
+     * @param  array<string, mixed>  $eggArray
+     */
+    private static function fixVariableRules(array &$eggArray): void
+    {
+        if (!array_key_exists('variables', $eggArray)) {
+            return;
+        }
+        foreach ($eggArray['variables'] as &$var) {
+            unset($var['field_type']);
+            if (!array_key_exists('rules', $var)) {
+                continue;
+            }
+            $var['rules'] = is_array($var['rules']) ? $var['rules'] : explode('|', $var['rules']);
+        }
+    }
+
+    /**
+     * @param  array<string, mixed>  $eggArray
+     */
+    private function hasFileChanged(string $unparsed, array $eggArray): bool
+    {
+        $yaml = $this->eggToYaml($eggArray);
+
+        return $unparsed !== $yaml;
+    }
+
+    /**
+     * @param  array<string, mixed>  $eggArray
+     */
+    private function eggToYaml(array $eggArray): string
+    {
+        return Yaml::dump($this->exporter->yamlExport($eggArray), 10, 2, Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK | Yaml::DUMP_OBJECT_AS_MAP);
+    }
+}
diff --git a/app/Services/Eggs/Sharing/EggExporterService.php b/app/Services/Eggs/Sharing/EggExporterService.php
index 579bb0dff..4f702ca82 100644
--- a/app/Services/Eggs/Sharing/EggExporterService.php
+++ b/app/Services/Eggs/Sharing/EggExporterService.php
@@ -78,7 +78,7 @@ class EggExporterService
         return null;
     }
 
-    protected function yamlExport(mixed $data): mixed
+    public function yamlExport(mixed $data): mixed
     {
         if ($data instanceof Collection) {
             $data = $data->all();
diff --git a/app/Services/Eggs/Sharing/EggImporterService.php b/app/Services/Eggs/Sharing/EggImporterService.php
index 511100590..30da81522 100644
--- a/app/Services/Eggs/Sharing/EggImporterService.php
+++ b/app/Services/Eggs/Sharing/EggImporterService.php
@@ -146,7 +146,7 @@ class EggImporterService
      *
      * @throws InvalidFileUploadException|JsonException
      */
-    protected function parse(string $content, EggFormat $format): array
+    public function parse(string $content, EggFormat $format): array
     {
         try {
             $parsed = match ($format) {
diff --git a/tests/Unit/Console/Commands/Egg/NormalizerEggCommandTest.php b/tests/Unit/Console/Commands/Egg/NormalizerEggCommandTest.php
new file mode 100644
index 000000000..40c1a7b93
--- /dev/null
+++ b/tests/Unit/Console/Commands/Egg/NormalizerEggCommandTest.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace App\Tests\Unit\Console\Commands\Egg {
+    use App\Tests\TestCase;
+    use Carbon\Carbon;
+    use Carbon\CarbonInterface;
+    use Illuminate\Testing\PendingCommand;
+    use Symfony\Component\Uid\Uuid;
+
+    use function PHPUnit\Framework\assertFileDoesNotExist;
+    use function PHPUnit\Framework\assertFileEquals;
+    use function PHPUnit\Framework\assertFileExists;
+
+    class NormalizeEggCommandTest extends TestCase
+    {
+        private ?string $tmpdir = null;
+
+        private ?CarbonInterface $origTime = null;
+
+        public function test_upgrade_ptdlv2_to_plcnv3(): void
+        {
+            $orig = $this->tmpdir . '/egg-ptdlv2.json';
+            $this->copyExampleFile('egg-ptdlv2.json');
+            $this->runCommand($orig)
+                ->expectsOutputToContain(' -> exporting to ')
+                ->run();
+
+            assertFileEquals(
+                dirname(__FILE__) . '/egg-plcnv3-example.yaml',
+                substr($orig, 0, -4) . 'yaml',
+            );
+        }
+
+        /**
+         * @depends test_upgrade_ptdlv2_to_plcnv3
+         */
+        public function test_idempotency(): void
+        {
+            $orig = $this->tmpdir . '/egg-ptdlv2.json';
+            $this->copyExampleFile('egg-ptdlv2.json');
+            $this->runCommand($orig)
+                ->expectsOutputToContain(' -> exporting to ')
+                ->run();
+
+            $newFile = substr($orig, 0, -4) . 'yaml';
+            assertFileExists($newFile);
+
+            copy($newFile, $this->tmpdir . '/copy.yaml');
+
+            // turn off datetime mocking (i.e. get a new datetime)
+            // so we can ensure a new datetime is only written to the file
+            // if the content has changed
+            Carbon::setTestNow(null);
+
+            $this->runCommand($newFile)
+                ->expectsOutputToContain(' -> no changes required')
+                ->doesntExpectOutputToContain(' -> exporting to ')
+                ->run();
+
+            assertFileEquals(
+                $newFile,
+                $this->tmpdir . '/copy.yaml',
+            );
+        }
+
+        public function test_delete_original(): void
+        {
+            $orig = $this->tmpdir . '/egg-ptdlv2.json';
+            $this->copyExampleFile('egg-ptdlv2.json');
+
+            $this->runCommand(' --delete-original ' . $orig)
+                ->expectsOutputToContain(' -> exporting to ')
+                ->expectsOutputToContain(' -> deleting input file as requested')
+                ->run();
+
+            $newFile = substr($orig, 0, -4) . 'yaml';
+
+            assertFileExists($newFile);
+            assertFileDoesNotExist($orig);
+        }
+
+        public function test_dont_delete_if_error(): void
+        {
+            $orig = $this->tmpdir . '/egg-ptdlv2.json';
+            $this->copyExampleFile('egg-ptdlv2.json');
+
+            $GLOBALS['SHOULD_MOCK_FILE_PUT'] = true;
+
+            $this->artisan('p:egg:normalize --delete-original ' . $orig)
+                ->expectsOutputToContain('Importing ')
+                ->expectsOutputToContain(' -> failed to write output file')
+                ->assertFailed()
+                ->run();
+
+            unset($GLOBALS['SHOULD_MOCK_FILE_PUT']);
+
+            $newFile = substr($orig, 0, -4) . 'yaml';
+
+            assertFileDoesNotExist($newFile);
+            assertFileExists($orig);
+        }
+
+        private function runCommand(string $arguments): PendingCommand
+        {
+            return $this->artisan('p:egg:normalize ' . $arguments)
+                ->expectsOutputToContain('Importing ')
+                ->assertSuccessful();
+        }
+
+        private function copyExampleFile(string $filename): void
+        {
+            if (!copy(
+                dirname(__FILE__) . '/' . $filename,
+                $this->tmpdir . '/' . $filename)
+            ) {
+                throw new \Exception('unable to copy json file to tmpdir');
+            }
+        }
+
+        protected function setUp(): void
+        {
+            parent::setUp();
+
+            register_shutdown_function([$this, 'shutdownHandler']);
+
+            $this->tmpdir = sys_get_temp_dir() . '/' . Uuid::v4()->toRfc4122();
+            if (!mkdir($this->tmpdir)) {
+                throw new \Exception('unable to create tmp dir');
+            }
+
+            // save the datetime set by the test framework to restore it after out tests
+            $this->origTime = Carbon::getTestNow();
+            Carbon::setTestNow(Carbon::createFromDate(2026, 06, 01)->setTime(01, 02, 03));
+        }
+
+        protected function tearDown(): void
+        {
+            parent::tearDown();
+
+            Carbon::setTestNow($this->origTime);
+
+            if (!is_null($this->tmpdir)) {
+                foreach (glob("{$this->tmpdir}/*") as $filename) {
+                    unlink($filename);
+                }
+                rmdir($this->tmpdir);
+            }
+        }
+
+        public function shutdownHandler(): void
+        {
+            // try and delete our tmp files to leave everything clean
+            error_get_last() && $this->tearDown();
+        }
+    }
+}
+
+namespace App\Console\Commands\Egg {
+    /** @phpstan-ignore missingType.parameter */
+    function file_put_contents(string $filename, mixed $data, int $flags = 0, $context = null): int|false
+    {
+        if (($GLOBALS['SHOULD_MOCK_FILE_PUT'] ?? false) === true) {
+            return false;
+        }
+
+        return \file_put_contents($filename, $data, $flags, $context);
+    }
+}
diff --git a/tests/Unit/Console/Commands/Egg/egg-plcnv3-example.yaml b/tests/Unit/Console/Commands/Egg/egg-plcnv3-example.yaml
new file mode 100644
index 000000000..827e6e283
--- /dev/null
+++ b/tests/Unit/Console/Commands/Egg/egg-plcnv3-example.yaml
@@ -0,0 +1,54 @@
+_comment: 'DO NOT EDIT: FILE GENERATED AUTOMATICALLY BY PANEL'
+meta:
+  version: PLCN_v3
+  update_url: 'https://raw.githubusercontent.com/pelican-dev/panel/refs/heads/main/tests/Unit/Console/Command/Egg/egg-ptdlv2.yaml'
+exported_at: '2026-06-01T01:02:03+00:00'
+name: 'Egg Example'
+author: example@example.com
+uuid: 21f1c702-953a-45ca-ae58-c205e8a4ea7e
+description: 'Egg for test purposes'
+tags:
+  - test
+features:
+  - eula
+  - java_version
+  - pid_limit
+docker_images:
+  'ghcr.io/pelican-eggs/yolks:java_8': 'ghcr.io/pelican-eggs/yolks:java_8'
+  'ghcr.io/pelican-eggs/yolks:java_11': 'ghcr.io/pelican-eggs/yolks:java_11'
+  'ghcr.io/pelican-eggs/yolks:java_16': 'ghcr.io/pelican-eggs/yolks:java_16'
+  'ghcr.io/pelican-eggs/yolks:java_17': 'ghcr.io/pelican-eggs/yolks:java_17'
+file_denylist: {  }
+config:
+  files:
+    server.properties:
+      parser: properties
+      find:
+        server-ip: 0.0.0.0
+        server-port: '{{server.allocations.default.port}}'
+  startup:
+    done: ')! For help, type '
+  logs: {  }
+  stop: stop
+scripts:
+  installation:
+    script: |-
+      #!/bin/ash
+      echo test some escaped backslashes (/), then proper backslashes (/)
+    container: 'ghcr.io/pelican-eggs/installers:alpine'
+    entrypoint: ash
+variables:
+  -
+    name: 'Modpack Version'
+    description: ''
+    env_variable: MODPACK_VERSION
+    default_value: 1.0.0
+    user_viewable: true
+    user_editable: true
+    rules:
+      - required
+      - string
+      - 'max:20'
+    sort: null
+startup_commands:
+  Default: 'java -Xms128M -Xmx{{SERVER_MEMORY}}M -jar minecraft.jar'
diff --git a/tests/Unit/Console/Commands/Egg/egg-ptdlv2.json b/tests/Unit/Console/Commands/Egg/egg-ptdlv2.json
new file mode 100644
index 000000000..012103f63
--- /dev/null
+++ b/tests/Unit/Console/Commands/Egg/egg-ptdlv2.json
@@ -0,0 +1,54 @@
+{
+    "_comment": "DO NOT EDIT: FILE GENERATED AUTOMATICALLY BY PANEL",
+    "meta": {
+        "version": "PTDL_v2",
+        "update_url": "https://raw.githubusercontent.com/pelican-dev/panel/refs/heads/main/tests/Unit/Console/Command/Egg/egg-ptdlv2.json"
+    },
+    "exported_at": "2026-06-01T01:02:03+00:00",
+    "name": "Egg Example",
+    "author": "example@example.com",
+    "uuid": "21f1c702-953a-45ca-ae58-c205e8a4ea7e",
+    "description": "Egg for test purposes",
+    "tags": [
+        "test"
+    ],
+    "features": [
+        "eula",
+        "java_version",
+        "pid_limit"
+    ],
+    "docker_images": {
+        "ghcr.io\/pelican-eggs\/yolks:java_8": "ghcr.io\/pelican-eggs\/yolks:java_8",
+        "ghcr.io\/pelican-eggs\/yolks:java_11": "ghcr.io\/pelican-eggs\/yolks:java_11",
+        "ghcr.io\/pelican-eggs\/yolks:java_16": "ghcr.io\/pelican-eggs\/yolks:java_16",
+        "ghcr.io\/pelican-eggs\/yolks:java_17": "ghcr.io\/pelican-eggs\/yolks:java_17"
+    },
+    "file_denylist": [],
+    "startup": "java -Xms128M -Xmx{{SERVER_MEMORY}}M -jar minecraft.jar",
+    "config": {
+        "files": "{\r\n    \"server.properties\": {\r\n        \"parser\": \"properties\",\r\n        \"find\": {\r\n            \"server-ip\": \"0.0.0.0\",\r\n            \"server-port\": \"{{server.build.default.port}}\"\r\n        }\r\n    }\r\n}",
+        "startup": "{\r\n    \"done\": \")! For help, type \"\r\n}",
+        "logs": "{}",
+        "stop": "stop"
+    },
+    "scripts": {
+        "installation": {
+            "script": "#!\/bin\/ash\r\necho test some escaped backslashes (\/), then proper backslashes (/)",
+            "container": "ghcr.io\/pelican-eggs\/installers:alpine",
+            "entrypoint": "ash"
+        }
+    },
+    "variables": [
+        {
+            "name": "Modpack Version",
+            "description": "",
+            "env_variable": "MODPACK_VERSION",
+            "default_value": "1.0.0",
+            "user_viewable": true,
+            "user_editable": true,
+            "rules": "required|string|max:20",
+            "sort": null,
+            "field_type": "text"
+        }
+    ]
+}
\ No newline at end of file