diff --git a/app/Support/CcliLabels.php b/app/Support/CcliLabels.php
new file mode 100644
index 0000000..12e320d
--- /dev/null
+++ b/app/Support/CcliLabels.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace App\Support;
+
+final class CcliLabels
+{
+    /**
+     * Regex matching CCLI SongSelect section labels (English + German + variants).
+     */
+    public const SECTION_LABEL_PATTERN = '/^(Verse|Chorus|Bridge|Pre-Chorus|Tag|Ending|Intro|Interlude|Outro|Misc|Strophe|Refrain|Brücke|Vorrefrain|Schluss|Zwischenspiel)\s*(\d+[a-z]?)?\s*(?:\((?:Repeat|Wdh\.?)\))?\s*(?:[xX]\s*\d+)?$/iu';
+
+    /**
+     * Regex matching CCLI footer/metadata lines (copyright, CCLI number).
+     */
+    public const METADATA_PATTERN = '/©|CCLI[\s\-]|ccli\.com|SongSelect|All rights reserved|Alle Rechte vorbehalten/iu';
+
+    /**
+     * Bidirectional English ↔ German label kind mapping.
+     */
+    public const LABEL_NAME_MAP = [
+        'Strophe' => 'Verse',
+        'Refrain' => 'Chorus',
+        'Brücke' => 'Bridge',
+        'Vorrefrain' => 'Pre-Chorus',
+        'Schluss' => 'Ending',
+        'Zwischenspiel' => 'Interlude',
+    ];
+
+    public static function isSectionLabel(string $line): bool
+    {
+        return (bool) preg_match(self::SECTION_LABEL_PATTERN, trim($line));
+    }
+
+    public static function isMetadataLine(string $line): bool
+    {
+        return (bool) preg_match(self::METADATA_PATTERN, $line);
+    }
+
+    public static function normalizeLabelName(string $label): string
+    {
+        $trimmed = trim($label);
+
+        if (! preg_match('/^(?<kind>Verse|Chorus|Bridge|Pre-Chorus|Tag|Ending|Intro|Interlude|Outro|Misc|Strophe|Refrain|Brücke|Vorrefrain|Schluss|Zwischenspiel)(?<suffix>\s+\d+[a-z]?)?$/iu', $trimmed, $matches)) {
+            return $trimmed;
+        }
+
+        $kind = $matches['kind'];
+        $suffix = $matches['suffix'] ?? '';
+
+        return (self::LABEL_NAME_MAP[$kind] ?? $kind).$suffix;
+    }
+
+    /**
+     * @return array{kind: string, number: string|null, modifier: string|null}|null
+     */
+    public static function parseLabel(string $line): ?array
+    {
+        $trimmed = trim($line);
+
+        if (! preg_match('/^(?<kind>Verse|Chorus|Bridge|Pre-Chorus|Tag|Ending|Intro|Interlude|Outro|Misc|Strophe|Refrain|Brücke|Vorrefrain|Schluss|Zwischenspiel)(?:\s+(?<number>\d+[a-z]?))?(?:\s*\((?<modifier>Repeat|Wdh\.?)\))?(?:\s*[xX]\s*\d+)?$/iu', $trimmed, $matches)) {
+            return null;
+        }
+
+        $modifier = $matches['modifier'] ?? null;
+
+        return [
+            'kind' => $matches['kind'],
+            'number' => $matches['number'] ?? null,
+            'modifier' => $modifier !== null ? rtrim($modifier, '.') : null,
+        ];
+    }
+}
diff --git a/tests/Unit/CcliLabelsTest.php b/tests/Unit/CcliLabelsTest.php
new file mode 100644
index 0000000..4fc7b57
--- /dev/null
+++ b/tests/Unit/CcliLabelsTest.php
@@ -0,0 +1,117 @@
+<?php
+
+use App\Support\CcliLabels;
+
+test('isSectionLabel detects english labels', function (string $label) {
+    expect(CcliLabels::isSectionLabel($label))->toBeTrue();
+})->with([
+    'Verse 1',
+    'Chorus',
+    'Bridge',
+    'Pre-Chorus',
+    'Tag',
+    'Ending',
+    'Intro',
+    'Interlude',
+    'Outro',
+    'Misc',
+]);
+
+test('isSectionLabel detects german labels', function (string $label) {
+    expect(CcliLabels::isSectionLabel($label))->toBeTrue();
+})->with([
+    'Strophe 1',
+    'Refrain',
+    'Brücke',
+    'Vorrefrain',
+    'Schluss',
+    'Zwischenspiel',
+]);
+
+test('isSectionLabel detects label variants', function (string $label) {
+    expect(CcliLabels::isSectionLabel($label))->toBeTrue();
+})->with([
+    'Verse 2a',
+    'Chorus 1 (Repeat)',
+    'Bridge x2',
+    'Verse 2b',
+]);
+
+test('isSectionLabel rejects non labels', function (string $text) {
+    expect(CcliLabels::isSectionLabel($text))->toBeFalse();
+})->with([
+    'Random text',
+    'We are singing',
+    'CCLI # 123456',
+    '© 2024 Publisher',
+    '',
+    'Amazing grace how sweet',
+]);
+
+test('isMetadataLine detects metadata lines', function (string $line) {
+    expect(CcliLabels::isMetadataLine($line))->toBeTrue();
+})->with([
+    '© 2020 Hillsong Music',
+    'CCLI # 4760',
+    'CCLI-Nr. 1234567',
+    'ccli.com/license',
+    'SongSelect Terms',
+    'All rights reserved',
+    'Alle Rechte vorbehalten',
+]);
+
+test('isMetadataLine rejects normal lines', function (string $line) {
+    expect(CcliLabels::isMetadataLine($line))->toBeFalse();
+})->with([
+    'Verse 1',
+    'Amazing grace how sweet the sound',
+    'Test Song 1',
+]);
+
+test('normalizeLabelName converts german labels to english', function (string $input, string $expected) {
+    expect(CcliLabels::normalizeLabelName($input))->toBe($expected);
+})->with([
+    ['Strophe 1', 'Verse 1'],
+    ['Refrain', 'Chorus'],
+    ['Brücke', 'Bridge'],
+    ['Vorrefrain', 'Pre-Chorus'],
+    ['Schluss', 'Ending'],
+    ['Zwischenspiel', 'Interlude'],
+]);
+
+test('normalizeLabelName keeps english labels unchanged', function (string $input) {
+    expect(CcliLabels::normalizeLabelName($input))->toBe($input);
+})->with([
+    'Verse 1',
+    'Chorus',
+    'Bridge',
+]);
+
+test('normalizeLabelName keeps unknown labels unchanged', function () {
+    expect(CcliLabels::normalizeLabelName('Foobar'))->toBe('Foobar');
+    expect(CcliLabels::normalizeLabelName(''))->toBe('');
+});
+
+test('parseLabel returns structured data for labels', function (string $label, string $kind, ?string $number, ?string $modifier) {
+    $result = CcliLabels::parseLabel($label);
+
+    expect($result)->not->toBeNull();
+    expect($result['kind'])->toBe($kind);
+    expect($result['number'])->toBe($number);
+    expect($result['modifier'])->toBe($modifier);
+})->with([
+    ['Verse 1', 'Verse', '1', null],
+    ['Chorus', 'Chorus', null, null],
+    ['Verse 2a', 'Verse', '2a', null],
+    ['Chorus 1 (Repeat)', 'Chorus', '1', 'Repeat'],
+    ['Strophe 2', 'Strophe', '2', null],
+]);
+
+test('parseLabel rejects non labels', function (string $text) {
+    expect(CcliLabels::parseLabel($text))->toBeNull();
+})->with([
+    'Random text',
+    'CCLI # 123',
+    '',
+    'Amazing grace',
+]);