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removebackgrounds.ai

背景除去ツール

Drop in a JPG, PNG, WebP, or HEIC and get a transparent PNG cutout at the source resolution — no megapixel cap, no signup gate, no watermark, no per-image credit. Your full-resolution file never leaves your device, and nothing is stored.

今すぐ試す - 無料

背景除去ツールの特徴

1

AI自動検出

高度な機能1により、優れた結果を実現

2

高精度な切り抜き

高度な機能2により、優れた結果を実現

3

エッジの自然な処理

Your full-resolution original never leaves your device: a small working copy is sent to compute the cutout, your browser then applies the returned mask to the original pixels locally, and we keep nothing once the result comes back. By contrast, the mainstream cloud removers all push the source file itself to their servers. If you would rather nothing left your device at all, the private mode at /private-background-remover/ processes everything locally.

背景除去の方法

1

画像をアップロード

背景を除去したい画像を選択

2

自動処理

AIが自動で背景を検出・除去

3

ダウンロード

背景なしの画像を保存

背景除去の活用例

プロフィール写真

SNSやビジネス用の写真編集

製品カタログ

統一感のある商品画像作成

マーケティング素材

広告やバナー用の画像準備

ロゴ・ブランド素材

ロゴやブランド素材を透過PNGに切り抜き

背景除去ツール - 画像の背景を無料で削除

AI技術で画像の背景を自動的に削除。簡単・高速・高精度な背景除去。

The other axis where this tool differs from the paid alternatives is what actually leaves your device, and what anyone keeps afterwards. Canva BG Remover, Photoroom web, and Adobe Express all take the source file itself — your original bytes leave your browser, land on their servers, and are retained under their terms. Here, your full-resolution original never leaves your device: a small working copy is sent to compute the cutout, your browser then applies the returned mask to the original pixels locally, and nothing is kept on our side once the result comes back. There is no account, no gallery, and no retained copy for you to go back and delete later. For pre-launch product shots under NDA, unreleased brand assets, personal photos you would rather not hand to a third party, or anything covered by GDPR / HIPAA / SOC 2 boundaries where retention and data residency are the questions actually being asked, that distinction is the one that matters: the full-resolution asset stays with you, and nothing persists with us. If your requirement is stricter still and nothing at all may leave the device, /private-background-remover/ offers a private mode that does the whole job locally, with the trade-offs stated up front — it is slower, it is capped to smaller files, and the quality ceiling is lower. Either way there is no signup and no paid tier gating the result.

backgroundRemoverの効果的な活用法

Working backwards from where the cutout lands: a Shopify product gallery wants 2048×2048 PNG, an Etsy listing wants a transparent PNG, an Amazon main image wants pure white RGB 255/255/255 at 85% frame fill, and a LinkedIn headshot wants a brand-coloured backdrop at 400×400. None of those workflows tolerate a 0.25 megapixel preview — they need full-resolution source material because they crop, re-size, and re-encode multiple times before the asset ships. They also can't tolerate non-commercial-use licensing because every one of those destinations is a commercial transaction. The cutout pipeline here delivers full-resolution PNG-24 with an 8-bit alpha channel and an explicit commercial-use license (documented at /commercial-use-background-remover/), which is the source-of-truth asset every downstream marketplace, CMS, and ad-creative pipeline expects. The privacy posture (full-resolution originals never leave your device, nothing stored — and a private mode at /private-background-remover/ that keeps everything local) means the asset library you're building doesn't leak to a third-party SaaS in the process. Last verified 2026-05-09.

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透明背景

背景を完全に削除して透明なPNGを作成

背景色変更

既存の背景色を任意の色に変更

背景追加

画像に新しい美しい背景を追加

パスポート写真の背景ルールと無料の白背景ツール

パスポート写真の背景に関する各国の公式ルール。米国・英国・カナダは加工した写真を禁止しているため撮り直しを。その他の写真には無料の白背景をどうぞ。

透明 PNG メーカー — 無料のロスレスアルファチャネル書き出し

任意の画像から透明 PNG を作成。ロスレスアルファチャネル書き出し・白ハロー無し・ロゴ・アプリアイコン・ファビコン・マーケティング資産対応。無料・登録不要。

ロゴ背景削除 — 無料の透明ロゴ PNG メーカー

JPG ロゴ・スクリーンショット・スキャンした名刺ロゴをクリーンな透明 PNG に変換。ブランドキット対応・ベクター対応・ウォーターマークなし。無料・登録不要。
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よくある質問

どんな画像形式に対応していますか？
JPG、PNG、WebPなど主要な画像形式に対応しています。
髪の毛なども綺麗に切り抜けますか？
はい、AI技術により髪の毛などの細かい部分も自然に処理されます。
処理時間はどれくらいですか？
通常の背景削除には当社のオンラインサービスを使いますが、フル解像度の元画像がデバイスの外に出ることはなく、何も保存されません — アカウントも、ギャラリーも、後から削除しに戻る必要のある履歴もありません。それよりも要件が厳しい場合は、/private-background-remover/ のプライベートモードがすべての処理をお使いのデバイス上で完結させます。トレードオフは先にお伝えします:処理は遅く、品質の上限は低く、画像は 25 MB 未満である必要があります。未発表のブランド素材、NDA 対象の仕事、第三者に渡したくない個人的な写真、あるいは「保存されるかどうか」こそが本当の論点である場合には、この違いが効いてきます。
How well does it handle hair, fur, and translucent edges?
Hair and fur usually come out clean on portraits, product shots and pet photos with reasonable lighting, often with no manual cleanup needed. The honest exceptions: very fine flyaway hair against a similarly coloured backdrop (blonde hair on a beige wall, dark hair on a black backdrop), translucent material like glass and smoke, motion-blurred edges, and low-resolution sources where the original simply doesn't carry enough detail to draw a clean edge. For those cases the erase and restore brush lets you refine the cutout by hand in the same view, with an adjustable brush size for fine detail and undo for any stroke you want back, which usually closes the gap. If even that's not enough — see q5.
When is a desktop image editor the better pick?
Honest concession: if you're working on hero ad creative, magazine-cover compositing, or any cutout where the last bit of edge precision is the deliverable rather than a nice-to-have, a skilled retoucher working by hand in a desktop image editor with a pen tablet still beats every browser tool. Channel-based selections, careful colour decontamination along the edges and painting partial transparency pixel by pixel are genuinely better for surgical work. The cost is the software plus skilled manual time on every image. The trade-off depends on the workload: for the weekly batch of product photos a marketplace seller has to ship, the free cutout here is the practical choice; for the one hero shot of the season's flagship product, hand retouching wins by a mile. For most ecommerce, social and headshot work the free cutout here is genuinely good enough — but knowing where the ceiling is matters for honest tool selection.

背景を今すぐ除去

Free, full-resolution output at the source megapixel count, commercial use included by default, and your full-resolution photo never leaves your device. Last verified 2026-05-09.

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