Image Compressor

Image Compressor reduces the file size of JPEG, PNG, and WebP images by up to 90% while preserving visual quality, using the browser's built-in Canvas API for fully client-side processing. Upload individual photos or batch process multiple images simultaneously — the pixel dimensions remain unchanged, only the file encoding is optimised. An adjustable quality slider lets you fine-tune the trade-off between file size and visual fidelity, and a side-by-side size comparison shows you exactly how much you are saving before you download. Because everything runs in your browser, your images never leave your device — making this tool safe for personal photos, confidential business images, and any content you would not want uploaded to a third-party server.

• JPEG, PNG, and WebP Compression

  Supports the three most common web image formats. JPEG and WebP use lossy compression for photographs; PNG uses lossless or lossy compression depending on the quality setting. The original format is preserved in the output by default.

• Adjustable Quality Slider

  A quality slider from 1% to 99% lets you choose the balance between file size and image quality. A preview of the compressed file size updates in real time as you drag the slider, so you know the output size before downloading.

• Batch Compression

  Upload multiple images at once and compress them all with the same quality setting. A progress indicator shows compression status for each file and a Download All button packages everything as a ZIP file.

• Original vs Compressed Size Comparison

  Each compressed image shows the original file size, compressed file size, and percentage reduction side by side. This lets you immediately assess the impact of the quality setting and adjust if needed.

• 100% Client-Side — No Uploads

  All compression is performed in your browser using the HTML5 Canvas API. Images are never uploaded to any server, stored in any database, or sent anywhere. This makes the tool completely private and safe for sensitive content.

• No Registration or File Limits

  Compress as many images as you need without creating an account or hitting a daily limit. Individual images can be up to 10 MB each. There is no limit on the number of images you compress in a single session.

1. 1

   Upload your images

   Drag and drop JPEG, PNG, or WebP images onto the upload area, or click the area to open a file browser. You can select multiple images at once for batch processing. Maximum individual file size is 10 MB.

2. 2

   Set the quality level

   Use the quality slider to choose the compression level. 80–85% gives a good balance of quality and size for most web use cases. Lower values give smaller files with more visible compression artefacts; higher values give cleaner images with larger file sizes.

3. 3

   Review the size reduction

   Each image shows the original size, compressed size, and percentage reduction. If the reduction is not sufficient, lower the quality slider and the preview updates immediately without re-uploading.

4. 4

   Download individual images

   Click the Download button next to any individual image to save the compressed version with the same filename and format as the original. The download starts immediately from your browser.

5. 5

   Download all as ZIP

   Click the Download All button to package all compressed images into a single ZIP file. This is the fastest way to save a batch of compressed images to your device.

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