Check your main image against Amazon's rules: pure white RGB 255, product at ~85%, size ≥1000px. Get a pass/fail report and one-click fix. 对照亚马逊主图规则逐项体检：纯白 RGB255、产品占比约 85%、尺寸 ≥1000px，输出检查报告并可一键修复。
Check your main image against Amazon's rules: pure white RGB 255, product at ~85%, size ≥1000px. Get a pass/fail report and one-click fix.
All processing happens locally in your browser. Your photos never leave your device — no upload, no account, no watermark. Free and unlimited.
对照亚马逊主图规则逐项体检：纯白 RGB255、产品占比约 85%、尺寸 ≥1000px，输出检查报告并可一键修复。
所有处理都在浏览器本地完成。照片不会离开你的设备——不上传、不注册、无水印，免费无限使用。