90° · 180° · Any

Image rotation, any direction you need

Rotate 90° clockwise/counter-clockwise, flip 180°, or any angle with live preview - export as PNG with the alpha channel. All local, nothing uploaded.

100% local · nothing uploaded

Features

Quick rotate

One-click 90° clockwise/counter-clockwise and 180°; keep clicking to continue.

Any angle

A 0-359° slider with auto-sized canvas so the image is never cropped.

Alpha preserved

Exports PNG with full transparency - great for icons and stickers.

Use cases

📷 Photo orientation 🔤 Icon flipping 🗂 Asset cleanup 🖨 Print layout

PNG旋转工具指南Image Rotate Guide

了解旋转方式、画布尺寸处理与常见问题。Rotation options, canvas sizing, and answers to common questions.

功能说明What It Does

PNG旋转工具支持顺时针 / 逆时针 90°、180° 与 0-359° 任意角度旋转。90° 与 270° 会交换宽高,任意角度自动计算包围盒尺寸,画面不会被裁切,透明通道完整保留。

This tool rotates images 90° clockwise/counter-clockwise, 180°, or any angle from 0-359°. Width and height swap at 90°/270°; arbitrary angles auto-size the canvas as a bounding box so nothing is cropped, and the alpha channel is preserved.

全部在浏览器本地完成,数据不会上传。

Everything runs locally in your browser - nothing is uploaded.

画布尺寸Canvas sizing

90° / 270° 旋转后画布宽高互换;180° 保持原尺寸;任意角度使用旋转包围盒,四角留白区域保持透明。

At 90°/270° the canvas width and height swap; at 180° it stays the same; arbitrary angles use the rotated bounding box, with the corner areas kept transparent.

使用步骤How to Use

上传图片。Upload an image.
点快捷旋转按钮,或拖滑块选任意角度后「应用角度」。Use the quick-rotate buttons, or drag the slider and click "Apply".
满意后「导出PNG」。Click "Export PNG" when satisfied.

常见问题FAQ

Q1. 任意角度会裁切画面吗?Q1. Does an arbitrary angle crop the image?

不会,画布自动扩大为旋转包围盒,四角留白为透明区域。No - the canvas grows to the rotated bounding box, with transparent corners.

Q2. 透明背景会丢吗?Q2. Is the transparent background lost?

不会,导出为 PNG 时透明通道完整保留。No - the alpha channel is fully preserved in the exported PNG.

Q3. 能连续旋转吗?Q3. Can I rotate repeatedly?

可以,每次点快捷按钮基于原图按累计角度重绘,多次操作不会累积画质损失。Yes - each click re-renders from the original at the accumulated angle, so quality doesn't degrade.