無料画像ツール｜圧縮・変換・サイズ変更をブラウザで
FreeAIBoxの無料画像ツールでブラウザ内の画像を直接編集・最適化。JPG/PNG/WebPファイルの圧縮でページ読み込み高速化、正確な寸法へのリサイズ、形式変換、複数画像からのPDF作成。すべてローカルかつプライベートに処理。Web制作者・写真家・SNS担当者など、高価なソフト不要で素早い画像編集が必要な方に最適。
13 ツールが利用可能
Frequently Asked Questions
What image tools does FreeAIBox offer?
FreeAIBox offers 13 free image tools covering compression (JPEG, PNG, WebP, GIF), resizing, cropping, format conversion (JPG to PNG, PNG to JPG, WebP to PNG, PNG to WebP, JPG to WebP), favicon creation, color palette extraction, and Base64 encoding. All tools process locally in your browser with complete privacy.
Are these image tools really free to use?
Yes, all 13 image tools are completely free with no hidden charges, premium tiers, usage limits, or sign-up requirements. Use every tool as often as you need without any restrictions.
Is my data private when using these image tools?
Yes. Every tool runs entirely in your browser using Canvas API and WebAssembly-based codecs. Your images never leave your device — no data is uploaded to any server.
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