CREOVLY
YouTubeクリエイター向け公開前ワークスペース

無料のYouTubeクリエイターツール — よりスマートに制作し、より良く公開する

サムネイル圧縮・リサイズ、タイトル検証、Shortsセーフゾーン確認、収益シミュレーションをブラウザ完結で実行。

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1. Title & Metadata

56 / 100 chars

Truncates on some smartphone feed viewsReview Hook

Try sample titles:

2. Thumbnail Visual

1280 × 720 HD
Publish Studio active thumbnail preview
1.1 MB JPEGHD Pass
14:20
Preview style:

3. Pre-Flight Check

5 / 6 Ready
First 50 Chars HookWARN
Export Project ZIP in Studio →

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1 / 9 ロゴ背景削除ツール

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From rough draft to publish-ready in 3 steps

The systematic pre-flight process elite YouTube creators use before hitting Publish.

Stage 01 — Visual Audit100% Client-Side

Verify thumbnail specs & eliminate UI overlap

Never lose CTR to an obscured title or an oversized payload. Validate 16:9 aspect ratio (from 1280×720 HD up to 3840×2160 4K), compress under the 2 MB YouTube mobile app limit (desktop accepts up to 50 MB), and keep critical focal points out of the bottom-right timestamp zone.

Before: Raw Export4.2 MB • Mobile Limit Exceeded
Before optimization uncompressed thumbnail
14:20 Badge Covers Title Hook

Exceeds YouTube Studio mobile 2 MB limit (desktop supports up to 50 MB). Critical text obscured behind timestamp.

Creovly Verified1.1 MB • Ready
After optimization Creovly verified thumbnail
14:20
1280×720 HD Pass

74% size reduction to 1.1 MB JPEG. Crisp clarity preserved with safe-zone clearance verified.

YouTube Mobile Limit: 2,000,000 bytes (≤ 50 MB Desktop)1,153,433 bytes (Universal Mobile Compatibility)
Pre-Publish Verification Standards:
  • Automatic 16:9 aspect ratio verification (1280×720 up to 3840×2160)
  • Client-side JPEG compression below 2 MB (mobile-safe)
  • Timestamp & Shorts mobile UI danger-zone clearance
Explore Thumbnail Compressor →Step 01 of 03
チェックリスト

公開前チェックリスト

サムネイル規格、タイトルの途切れ、音声ライセンスを体系的に確認。

チェックリストを開く →
Publish Studio

Publish Studio

タイトル、説明文、サムネイルを1つのワークスペースで統合準備。

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