COVERTON IMAGE WORKFLOW · FREE

画像サイズの予算

Set a maximum file size, compare the actual result and download JPEG or WebP. Images are processed on your device without uploading.

1Add images
2Choose settings
3Compare & download

Add images

Drop more files here at any time

JPG · PNG · WebP · AVIF · BMP · up to 12 images, 30 MB each / 100 MB total

A sample illustration is generated on your device. Use your own images when you are ready.

Choose images to begin. Your originals stay unchanged.

Choose settings

Examples you can start with

Online form · 300 KB

Choose 300 KB, JPEG and allow smaller dimensions. Compare readability before submitting.

Email attachment · 1 MB

Choose 1 MB to keep more detail. The result shows its measured byte size.

Transparent web image

Choose WebP to retain transparency. Review appearance and the resulting dimensions.

What this tool does

Useful for attachment limits, profile images and online forms. The tool searches for the highest JPEG/WebP quality that fits your chosen budget; with permission, it reduces dimensions if necessary. A successful result is always checked against the actual byte limit.

Before you start

Smaller file size can reduce quality or dimensions. Very small targets may be impossible at your minimum quality; the tool tells you instead of labeling an oversized file as successful. Transparency becomes white in JPEG; original EXIF and other metadata are removed.

Processed on your device

File names and image bytes never leave your device. Optional usage measurement records only tool events, language and entry point; trial and purchase outcomes are grouped by entry point. Declining measurement does not restrict tools or downloads. Event records are retained for up to 90 days. Change your choice using Usage measurement settings in the footer. Optional statistics also group visits and outcomes as search, direct or referral. They do not contain search terms or referrer URLs.

Build an image kit → · JPEG / WebP

Continue in the image, document and table workspace

ワークスペースコントロールには英語の用語が含まれる場合があります。ファイル形式名と CSV 列識別子は変更されません。

こんなときに便利です

写真を追加し、300 KBと入力してJPGまたはWebPと最低画質を選びます。必要なら縮小を許可してください。許可しない場合、目標未達はエラーとして表示されます。実際のバイト数、画像サイズ、読みやすさを確認します。上限に近いファイルが拒否される場合は目標を下げてください。JPGでは透明部分を保持できません。元画像は保管しましょう。

入力と仕上がりの例

写真 + 300 KB 予算 → 確認済みサイズ JPG/WebP または制限エラー

例はワークフローを示しています。実際のサイズ、サポート、認識はソースと設定によって異なります。