short-form-converter

ショート動画コンバーター

長尺コンテンツを、拡散されやすいショート動画に変換します。

ショート動画プラットフォームの仕様

プラットフォーム	最大長さ	最適な長さ	アスペクト比	音声
TikTok	10 min	15-60 sec	9:16	重要
YouTube Shorts	60 sec	30-45 sec	9:16	重要
Instagram Reels	90 sec	15-30 sec	9:16	重要
Facebook Reels	60 sec	15-30 sec	9:16	重要

拡散される瞬間の特定

クリップが拡散に値する要素

✅ STRONG VIRAL INDICATORS:
1. Emotional peak - Surprise, shock, joy, anger
2. Unexpected twist - Plot reversal, revelation
3. Valuable insight - "Aha moment", key takeaway
4. Relatable moment - "This is so me" content
5. Controversial take - Debate-starting opinion
6. Satisfying conclusion - Before/after, completion
7. Funny moment - Genuine humor, reaction

❌ WEAK CLIP MATERIAL:
- Long setup without payoff
- Inside jokes requiring context
- Technical explanations without visual
- Slow-paced segments
- Content requiring full video context

クリップの選定プロセス

STEP 1: Timestamp key moments from long video
- Mark ALL emotional peaks
- Note all "quotable" statements
- Identify visual highlights
- Flag unexpected moments

STEP 2: Score each moment (1-10)
- Hook potential: Does it grab in 1 second?
- Standalone value: Makes sense without context?
- Engagement likelihood: Will people comment/share?
- Platform fit: Right vibe for TikTok/Shorts/Reels?

STEP 3: Select top 3-5 moments for clips
- Prioritize variety (don't all same type)
- Ensure each has different hook angle

変換のフォーマット

長いチュートリアル → 短いチュートリアル

ORIGINAL (10 min):
- 2 min intro
- 6 min walkthrough
- 2 min conclusion

SHORT VERSION (45 sec):
─────────────────────────────────────────────────────────────
0:00-0:03 | HOOK: "The [result] trick nobody knows"
0:03-0:08 | CONTEXT: "When you need to [problem]..."
0:08-0:40 | CORE STEPS: Just the 3 most important steps
0:40-0:45 | CTA: "Follow for more [topic]"
─────────────────────────────────────────────────────────────
CUT: All intro fluff, slow explanations, tangents
KEEP: Core value, best tips, before/after

長いレビュー → 短い結論

ORIGINAL (15 min):
- Unboxing, specs, testing, pros, cons, verdict

SHORT VERSION (30-45 sec):
─────────────────────────────────────────────────────────────
0:00-0:03 | HOOK: "Is [Product] worth it?"
0:03-0:10 | QUICK CONTEXT: Price, who it's for
0:10-0:25 | TOP 3 POINTS: Best feature, worst flaw, comparison
0:25-0:35 | VERDICT: "Buy it if... Skip if..."
0:35-0:40 | CTA: "Full review linked"
─────────────────────────────────────────────────────────────

長いストーリー → 短い予告編

ORIGINAL (20 min vlog):
- Full story with buildup, climax, resolution

SHORT VERSION (30-60 sec):
─────────────────────────────────────────────────────────────
0:00-0:03 | HOOK: Climax moment or dramatic statement
0:03-0:10 | REWIND: "Let me explain how I got here..."
0:10-0:35 | CONDENSED JOURNEY: Key beats only
0:35-0:45 | CLIFFHANGER: Stop before full resolution
0:45-0:50 | CTA: "Part 2?" or "Full video for ending"
─────────────────────────────────────────────────────────────

長いインタビュー → お宝クリップ

IDENTIFY:
- Hot takes / Controversial opinions
- Personal revelations
- Quotable wisdom
- Emotional moments
- Surprising facts

FORMAT:
─────────────────────────────────────────────────────────────
0:00-0:02 | HOOK: The most shocking quote
0:02-0:05 | CONTEXT: "When asked about [topic]..."
0:05-0:40 | THE CLIP: Let it play with captions
0:40-0:45 | REACTION/CTA: Your take or "thoughts?"
─────────────────────────────────────────────────────────────

出力形式

═══════════════════════════════════════════════════════════════
SHORT-FORM CONVERSION PLAN
Original Video: [Title]
Original Length: [X:XX]
═══════════════════════════════════════════════════════════════

📋 IDENTIFIED VIRAL MOMENTS:
─────────────────────────────────────────────────────────────
1. [Timestamp] - "[Quote/Description]" - Viral Score: X/10
2. [Timestamp] - "[Quote/Description]" - Viral Score: X/10
3. [Timestamp] - "[Quote/Description]" - Viral Score: X/10
4. [Timestamp] - "[Quote/Description]" - Viral Score: X/10
5. [Timestamp] - "[Quote/Description]" - Viral Score: X/10

🎬 CLIP 1: [Clip Title]
─────────────────────────────────────────────────────────────
Source: [Start] - [End] from original
Target Length: [XX seconds]
Best For: [TikTok/Shorts/Reels]

SCRIPT:
[0:00-0:03] HOOK:
"[Opening line]"
Text on screen: "[TEXT]"

[0:03-0:XX] CONTENT:
[Scene/dialogue description]
Caption style: [Auto-captions/Custom]

[0:XX-0:XX] CTA:
"[Closing line]"
Text: "[CTA text]"

EDIT NOTES:
- Music: [Trending sound suggestion or original audio]
- Captions: [Style - bold, animated, etc.]
- Transitions: [Cut type suggestions]
- Speed: [Normal/Speed up sections]

POSTING STRATEGY:
- Platform priority: [TikTok → Shorts → Reels]
- Best posting time: [Based on content type]
- Hashtags: #tag1 #tag2 #tag3

🎬 CLIP 2: [Clip Title]
─────────────────────────────────────────────────────────────
[Same format...]

🎬 CLIP 3: [Clip Title]
─────────────────────────────────────────────────────────────
[Same format...]

📅 RELEASE SCHEDULE:
─────────────────────────────────────────────────────────────
Day 1: Clip 1 (TikTok + Shorts)
Day 3: Clip 2 (TikTok + Reels)
Day 5: Clip 3 (All platforms)
Day 7: Compilation/Best of (if clips perform well)

💡 CROSS-PROMOTION:
─────────────────────────────────────────────────────────────
- Link full video in bio
- Pin comment with full video link
- Add "Full video" text at end
═══════════════════════════════════════════════════════════════

使い方

動画ファイルから

Convert this video to short-form clips:
Video: [Title/description]
Length: [X minutes]
Key moments: [If you know them]
Target platform: [TikTok/Shorts/Reels/All]

文字起こしから

Here's my video transcript. Identify the best clips:
[Paste transcript]

Looking for: [X] clips of [30-60] seconds

トピック／スクリプトから

I'm making a [length] video about [topic].
Help me plan short-form clips in advance.
Key points I'll cover: [list]

プラットフォーム別の調整

TikTok の最適化

- Trending sounds matter A LOT
- Fast pacing (cut every 2-3 seconds)
- Text-heavy (assume sound off)
- Casual, authentic vibe
- Strong community engagement (duets, replies)
- Hashtags: Mix trending + niche

YouTube Shorts の最適化

- Can be more polished than TikTok
- Original audio often works better
- Clear value proposition
- Works well with educational content
- Less sound-dependent than TikTok
- #Shorts hashtag helps discovery

Instagram Reels の最適化

- Slightly more curated aesthetic
- Trending audio helps but less critical
- Strong visual composition
- Carousel-style content works
- Story crosspost strategy
- Hashtags in caption, not on video

変換の編集のヒント

✅ DO:
- Add captions (85% watch muted)
- Use jump cuts to remove dead space
- Add b-roll or visual variety
- Include text overlays for key points
- Match platform's native style
- Trim the fat ruthlessly

❌ DON'T:
- Just crop and post (feels lazy)
- Keep long pauses/transitions
- Use horizontal clips (except split-screen)
- Ignore platform-specific features
- Post same exact clip everywhere
- Forget the CTA

ショート動画のチェックリスト

各クリップを投稿する前に：

• 最初の1～2秒にフックがある
• 字幕／テキストを追加した
• 縦型フォーマット（9:16）
• 無駄な空白／間がない
• 最後に明確なCTAがある
• 関連するハッシュタグがある
• サムネイル／カバーを選択した（該当する場合）
• プロフィールのリンクを更新した
• プラットフォームに最適化した（ネイティブ機能を使用）