Twitch 動画サムネイルサイズ変更ツール
Resize one stream highlight, VOD image, game scene, or creator graphic to 1280x720 for a clearer Twitch video thumbnail.
画像をアップロード
ドラッグ＆ドロップするか、クリックして画像を選択 (最大 20MB)
JPG、PNG、GIF、WEBP形式に対応
画像が複数ありますか？まとめて一度にサイズ変更
ほかにも画像がありますか？ 一括リサイズを試す →
関連するリサイズツール
単位、形式、ファイルサイズの違いに合わせて画像サイズを一か所で調整できます。
Built for Twitch Video Thumbnails
Prepare 16:9 thumbnails where the subject, title space, stream moment, and click decision need to be understood quickly.
1280x720 Video Frame
Resize stream highlights, VOD covers, clips, and gaming scenes to a 16:9 thumbnail canvas used across Twitch video surfaces.
Moment-First Composition
Feature the reaction, boss fight, match result, guest, product, or stream scene that gives viewers a reason to click the video.
Title Space Awareness
Leave room for short episode titles, series labels, dates, or stream context without covering the creator face or main action.
Screenshot Crop Control
Check gameplay captures, webcam layouts, overlays, and wide scenes so important details remain inside the thumbnail frame.
写真・グラフィックの書き出し
Use JPG for game scenes and photo-heavy thumbnails, or PNG for text, logos, overlays, and sharper designed video covers.
One Thumbnail Review
Preview a single thumbnail before downloading so the image, title area, and focal point work together before upload to Twitch.
Create a Twitch Video Thumbnail in 3 Steps
Upload one video image, frame the key moment in 1280x720, and export a Twitch-ready thumbnail.
Upload a video visual
Choose a stream screenshot, game scene, creator photo, VOD cover, clip image, or designed thumbnail.
Frame the click moment
Center the reaction or action, leave room for short title text, and keep overlays from crowding the subject.
サイズを変更してダウンロード
Process the image, review the 16:9 result, and save the finished Twitch video thumbnail.
Ready to resize a Twitch video thumbnail?
Turn one stream image into a 1280x720 thumbnail with a clearer focal point, stronger title space, and cleaner video presentation.
Twitch 動画サムネイルのサイズ変更に関するよくある質問
Guidance for 1280x720 thumbnail sizing, stream highlights, game screenshots, title placement, crop review, and export formats.
This page prepares a 1280x720 image for Twitch video thumbnails. The 16:9 format works well for VOD covers, stream highlights, clips, game moments, creator reactions, and other video assets that need a clear preview image.
The thumbnail should quickly explain why the video is worth watching. Put the strongest reaction, match moment, guest, game scene, or visual result near the center, then use text only when it adds context without hiding the main subject.
Yes. Gameplay screenshots can work well when the action is clear and not covered by too many interface elements. Check the crop before exporting so the character, scoreboard, webcam, or key scene does not get cut off in the 16:9 frame.
Short text can help when it names the episode, challenge, guest, or stream moment. Keep the wording large and brief. Long titles, small labels, and multiple text blocks can make the thumbnail harder to read when viewers browse quickly.
JPG is usually a good choice for game screenshots, creator photos, and detailed stream scenes. PNG is better for designed thumbnails with logos, titles, overlays, and flat graphic elements where crisp edges and readable type are important.
Yes, but a vertical source may need cropping, side background, or repositioning to fill the wide thumbnail. Review the result carefully so the face, game character, text, or important stream detail does not become too small or get cropped awkwardly.
Use similar title placement, colors, face crop, logo position, and visual spacing across related videos. Consistency helps viewers recognize a series while still letting each thumbnail highlight a different stream moment or episode topic.
Look at the focal point, title space, and edge cropping. If the thumbnail feels busy, remove unnecessary detail or crop tighter around the action. The final image should be understandable quickly before viewers read the full video title.
はい、当社の画像リサイズツールは完全に無料で利用可能です。登録は不要、水増しはなし、隠し料金もありません。画像をアップロードして、希望のサイズにリサイズするだけです。
はい、完全に安全です！すべての画像処理はブラウザ内でローカルで行われます。画像はサーバーにアップロードされず、ファイルの完全なプライバシーとセキュリティが保証されます。
人気のリサイズプリセット
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