Image Compressor is a free online tool. No install — open the page and use it. Supports common image formats with instant local preview, no local storage used.
Image Compressor is a free online tool in the 72Tool toolbox for Image tasks. Enter your input to get instant, accurate results — handy for work, development and daily use.
图片压缩是一款免费的在线图片处理与压缩工具，无需下载安装、无需注册登录，打开网页即可使用。支持JPG压缩、PNG压缩、WebP压缩，所有压缩操作均在浏览器本地完成，文件不会上传到服务器，充分保护数据隐私。无论使用电脑、平板还是手机，都能直接在浏览器中打开使用。
图片压缩适用于图片体积压缩、相册与素材整理等场景，可压缩体积、转换格式、调整尺寸，适合上传前的图片优化。作为一款轻量的在线图片处理与压缩工具，它免去了安装专业软件的麻烦，随开随用，是日常图片体积压缩中的实用小工具。
Features & Use Cases
Image Compressor is a free online image tool. No install, no sign-up — just open the page and use it. It supports JPG, PNG and WebP, and all compression runs locally in your browser; files are never uploaded.
Use it to shrink image size, tidy up albums and assets, convert formats or resize — perfect for optimizing pictures before upload.
使用教程
- 点击上传区域，选择本地的文件（支持页面提示的格式）。
- 按需设置处理参数：从下拉菜单选择参数（如：极致压缩 低画质、均衡压缩、轻度压缩 高清）。
- 可在压缩档位中选择合适的强度，平衡文件体积与清晰度。
- 点击「压缩导出图片」按钮，等待浏览器在本地完成处理。
- 处理完成后自动下载结果文件，或在本页结果区查看预览。
How to Use
- Click the upload area and choose a local file (formats shown on the page).
- Set parameters from the dropdown (e.g. Extreme / Balanced / Light compression).
- Pick a compression level to balance file size and clarity.
- Click “Compress & Export”, and the browser processes it locally.
- The result downloads automatically, or preview it in the result area.
常见问题
Q1：压缩会明显掉画质吗？
A：可选择质量档位，均衡档在体积与清晰度间取得平衡。
Q2：支持哪些图片格式？
A：支持 JPG、PNG、WebP 等常见格式。
Q3：原图会泄露吗？
A：不会，图片仅在本地浏览器处理。
Q4：处理慢怎么办？
A：首次使用需加载处理内核，稍等即可，后续更快。
Q5：图片压缩支持JPG格式吗？
A：支持，可直接上传JPG文件，在浏览器本地完成压缩，文件不会上传到服务器。
Q6：图片压缩可以在手机上使用吗？
A：可以，本工具基于网页运行，手机、平板、电脑均可直接打开网页使用，无需安装 App。
FAQ
Q1: Will compression hurt quality a lot?
A: Choose a quality level; Balanced keeps a good trade-off between size and clarity.
Q2: Which formats are supported?
A: Common formats including JPG, PNG and WebP.
Q3: Will my original image leak?
A: No, images are processed only in your local browser.
Q4: Processing is slow?
A: The first run loads the processing engine; wait a moment, later runs are faster.
Q5: Does it support JPG?
A: Yes, upload a JPG and compress it locally; nothing is uploaded.
Q6: Can I use it on mobile?
A: Yes, it runs in any browser on phone, tablet or desktop — no app needed.
Related Tools
Features & Use Cases
Image Compressor is a free online Image Tools tool. Image Compressor — a free online Image Tools tool. Runs entirely in your browser, no upload, no registration, works on phone and desktop. No download or registration is required — just open the page and use it instantly. All processing runs locally in your browser, so your files and data never leave your device, keeping everything private.
How to Use
- Enter or paste the content you want to process into the input area.
- Adjust options or parameters as needed from the controls on the page.
- Click the action button and let the tool process everything locally in your browser.
- View, copy or download the result from the output area.
FAQ
Q1: Is this tool free?
A: Yes, it is completely free to use with no registration required.
Q2: Do I need to install software?
A: No, it runs directly in your web browser.
Q3: Will image quality be lost?
A: Some tools compress or resize images; quality loss depends on the settings you choose.
Q4: What image formats are supported?
A: Common formats like JPG, PNG, WebP, GIF and SVG are supported unless the tool page states otherwise.
Note: Image Compressor runs entirely in your browser; your data is not uploaded to any server. Explore more free online tools on the 72Tool homepage.