When to use this compressor
Use this tool when a website image is too heavy and you want a fast delivery copy. Keep your original files, then export smaller WebP or JPG versions for publishing.
Free browser tool
Reduce image file size locally with practical quality controls for website and product images.
Choose one or more images to begin.
Use this tool when a website image is too heavy and you want a fast delivery copy. Keep your original files, then export smaller WebP or JPG versions for publishing.
Practical guidance
compress image, reduce JPG file size, make PNG smaller, web image optimization
Compress images before uploading them to a website, attaching them to an email, or posting them on social media. Reducing file size helps pages load faster and keeps email attachments within size limits.
Recommended workflow
Resize large images before compression when exact dimensions matter.
Compress the image to reduce file size.
Convert to WebP if the image is mainly for websites.
FAQ
No. This compressor uses browser Canvas APIs, so selected files stay on your device.
Choose WebP for most website delivery files. Choose JPG for systems that do not accept WebP or when you need a simple photo fallback.
Small icons, already optimized files, or PNG graphics with flat colors may not shrink after canvas export. Compare the result before replacing originals.
Yes. Image Compressor is completely free. There is no sign-up, no watermark on the output, and no usage limit for standard conversion.
Yes. Image Compressor runs in any modern mobile browser including Safari on iPhone and Chrome on Android. No app installation is required.
No. Image Compressor processes images entirely in your browser. Your files are never sent to a server, stored, or logged anywhere.
Image Compressor accepts JPG, PNG and WEBP files as input.
Image Compressor can produce JPG and WEBP files as output.
You can process multiple images in a single session. All converted files can be downloaded individually or packaged into a ZIP archive.
It depends on the output settings. You can adjust the quality slider before downloading to find the right balance between file size and visual detail.
Once the page has fully loaded, Image Compressor can process images offline because all conversion happens inside your browser rather than on a remote server.
File size limits depend on your device's available memory. Very large images may take longer to process or require a device with more RAM to complete reliably.
No account or sign-up is required. Open the tool, choose a file, and download the result immediately.
Yes. Image Compressor works in all major desktop browsers including Chrome, Firefox, Safari, and Edge on both Windows and macOS.
Yes. Image Compressor supports selecting or dropping multiple files at once. Each file is converted and results can be downloaded as a ZIP.
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將 PNG 壓縮為更小的 WebP 檔案。
Keep transparency in a smaller web format.
調整圖片至精確尺寸。
Match exact upload and layout dimensions.
移除圖片背景匯出透明 PNG。
Transparent PNGs for product and profile photos.
將圖片合併為 PDF。
Archive receipts, screenshots, and photos to one PDF.
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