🗜️ 图片压缩器
Reduce image file size while maintaining visual quality. All processing happens in your browser.
Original
Compressed
图片压缩器：在不损失可见画质的前提下减小图片体积
图片压缩器让你在不损失可见画质的前提下减小图片体积。全部在浏览器本地处理，无需上传、无需注册。
压缩图片以加快网站加载、提升 Core Web Vitals
压缩图片以加快网站加载、提升 Core Web Vitals。这是人们使用图片压缩器最常见的理由之一——几秒内即可在浏览器中完成。
压缩照片以符合邮件附件大小限制
压缩照片以符合邮件附件大小限制。这是人们使用图片压缩器最常见的理由之一——几秒内即可在浏览器中完成。
优化电商商品图片
优化电商商品图片。这是人们使用图片压缩器最常见的理由之一——几秒内即可在浏览器中完成。
图片压缩器所需的一切功能
让图片压缩器快速、私密且免费的强大功能。
即时转换
文件上传瞬间即在浏览器内处理——无需排队等待。
100% 隐私
文件从不离开你的设备，全部本地运行。
可调质量
精细调节压缩或输出设置，平衡体积与画质。
批量处理
一次处理多个文件并一起下载。
永久免费
无需注册、无水印、无隐藏限制。
跨平台
Windows、Mac、Linux、iOS、Android 任意现代浏览器可用。
How to Use
Upload
Select a JPG, PNG, or WebP image from your device.
Adjust Quality
Use the slider to balance file size and image quality.
Compress & Download
Click Compress and download the optimized image.
Detailed User Guide
Step 1: Upload Your Image
Click the dropzone or drag and drop a JPG, PNG, or WebP image. The original file size and dimensions will be displayed next to the preview.
Step 2: Adjust Quality Settings
Use the Quality slider (10%–95%) to control the compression level:
- 80-95% — Minimal quality loss, good for photos you want to keep sharp
- 50-70% — Balanced size reduction, ideal for web use
- 10-40% — Maximum compression, smallest file size (more visible quality loss)
Step 3: Compress & Compare
Click "Compress" to process. The tool shows both original and compressed versions side-by-side, along with the exact file size and percentage saved. Click "Download" to save the optimized image.
Best Use Cases
- Website optimization — Reduce page load times by compressing hero images and galleries
- Email attachments — Stay under size limits when sending photos
- Social media uploads — Faster uploads without noticeable quality loss at 70-80%
- Storage saving — Batch-compress photo collections (process one at a time)
Pro Tips
- For photos with text or fine details, stay above 70% quality to keep text readable
- WebP format typically gives 25-35% smaller files than JPG at the same quality
- PNG compression preserves transparency but won't reduce file size as much as JPG/WebP
- Compare the before/after preview to find your personal quality threshold