Instagram Reels、TikTok、YouTube Shorts向けの実用的なサイズガイド、クロップ比率、セーフエリアのヒント、編集ワークフロー — 毎週投稿するクリエイター向けに更新。
New: How AI reel editors compare — and where browser prep still wins.
The best AI reel editor depends on your job: auto-clipping long video, captions, or fast private crop and trim. Compare top picks and a practical hybrid workflow for 2026.
New: Instagram Edits vs in-app Reels vs browser editors — pick by workflow.
The best Instagram reel editor depends on whether you need trending audio, multi-layer overlays, or a private browser crop before upload. Compare Instagram Edits, CapCut, and Reels Editor.
New: Edit TikTok-ready vertical video in the browser — crop, trim, logo, export.
A TikTok video editor online should export 1080×1920 MP4 without forcing a desktop install. Crop, trim, add logo or audio, and download locally before you post in TikTok.
New: Practical AI reel workflow — clip, crop, caption, publish.
Learn how to edit reels with AI without losing quality: repurpose long video, fix framing in the browser, add captions, and export 1080×1920 for Instagram and TikTok.
New: Free reel editing in the browser — crop, trim, logo, filters, MP4 export.
A free reel editor should export clean 1080×1920 MP4 without paywalls on basic crop and trim. Use browser tools for vertical video prep before Instagram and TikTok.
New: CapCut alternatives for privacy, desktop, and lightweight reel prep.
CapCut alternatives for 2026: Instagram Edits, Descript, VEED, and browser editors for private crop and trim. Pick by captions, templates, or local processing.
New: Opus Clip alternatives for repurposing long video into reels and shorts.
Opus Clip alternatives for AI clipping: Vizard, Munch, Descript, and manual browser prep. Compare repurposing features, pricing limits, and export quality for reels.
New: VEED alternatives for subtitles, browser editing, and private reel prep.
VEED alternatives in 2026: Descript, Kapwing, Canva Video, and Reels Editor for local crop and trim. Compare subtitles, cloud workflows, and reel-specific exports.
New: Why add-image-on-reel feels gone in Instagram — and how to overlay photos anyway.
Instagram pushed advanced image overlays into the Edits app and slimmed the in-app Reels editor. Here is what changed, what still works, and how to add image on reel in your browser.
Updated: Canonical 1080×1920 export checklist for multi-platform reels.
The best reel size in 2026 is 1080×1920 (9:16). Use this guide for Instagram, TikTok, and YouTube Shorts — plus safe margins and export tips.
New: TikTok 9:16 framing rules with right-edge safe zone tips.
TikTok’s native aspect ratio is 9:16 (1080×1920). Learn what happens with 16:9 uploads, how UI overlays crop attention, and how to reframe landscape footage.
Updated: Instagram Reels pixel sizes vs Stories and feed crops.
Instagram Reel dimensions are 1080×1920 (9:16). Compare Reels vs Stories vs 4:5 feed crops, caption safe zones, and export settings that stay sharp.
New: Practical safe-area margins you can apply in Resize Video.
Generate safe areas for Reels and TikTok before you export. Keep faces, captions, and logos clear of platform UI with simple margin rules and a browser crop preview.
New: Cover and thumbnail sizes for short-form and YouTube.
Thumbnail and cover sizes that actually get tapped: Reels covers, YouTube 1280×720, Shorts frames, and how to crop a punchy first frame from vertical video.
New: One-page pixel sizes for Reels, TikTok, feed posts, and thumbnails.
Copy-ready social media sizes for Instagram, TikTok, YouTube, Facebook, LinkedIn, X, and Pinterest — plus which ratio to use when you only have time for one export.
Updated: Hook checklist with pattern interrupts for Reels and TikTok.
Stop the scroll in under two seconds with motion, bold text, and a clear subject. A strong hook sets pace and lifts watch time on Reels, Shorts, and TikTok.
Updated: Safe-margin guidance paired with 9:16 and 4:5 crops.
Use 9:16 for vertical Reels and Shorts, 4:5 for feed previews, and keep safe margins for captions and UI so key subjects never get covered.
Updated: Natural skin-tone starting points for short-form video.
Balance exposure, add modest contrast, and warm skin tones slightly so Reels and TikToks feel polished without looking over-filtered.
Updated: Transition timing for vertical short-form pacing.
Keep transitions short and purposeful. Match motion direction between clips so edits feel intentional instead of decorative.
Updated: Beat-aligned cut workflow for trending audio.
Align beats with cuts, kill long silent gaps, and duck music under voice lines so short-form videos keep rhythm and clarity.
Updated: Batch export checklist for multi-platform teams.
Group similar clips, reuse crop and filter settings, and export in bulk so daily Reels and TikToks stop eating your week.
