Muuta kuvien tiedostokoot nopeasti pienemmeksi: Advanced Photo Resizer
Muuta kuvien tiedostokoot nopeasti pienemmeksi: Advanced Photo Resizer

Upload Images

Converted Images

Instructions

For optimal results:

  • Start with a 25%, 12.5%, or 6.25% resize for the first round of conversion.
  • For subsequent resizes, you can use 6.25%, 12.5%, 25%, or 50%.
  • Using 50% for the first resize might result in a larger file size than the original.
  • The "Download All" button will only download the most recently resized images from the right panel.
  • You can choose between JPEG compression, WebP compression, or no compression.
  • For JPEG and WebP compression, you can adjust the quality using the slider.
  • The downloaded files will keep the original filename with a "_resize" suffix.

Mitchell-Netravali Method

The Mitchell-Netravali method is an advanced image resampling technique that offers superior quality compared to traditional methods like Lanczos or bicubic interpolation. It uses a specially designed cubic filter that balances three important aspects of image quality: sharpness, aliasing, and ringing.

Key advantages of Mitchell-Netravali over regular resizing methods:

  • Better preservation of edge details and textures
  • Reduced aliasing artifacts, especially in high-contrast areas
  • Minimal ringing or halo effects around sharp edges
  • Improved overall image clarity and natural appearance

While Lanczos can sometimes produce oversharpening artifacts and bicubic interpolation may result in softness, Mitchell-Netravali strikes an excellent balance, making it particularly well-suited for photographic images and general-purpose resizing tasks.

Privacy Statement

I take your privacy seriously. This image resizing tool operates entirely within your web browser and on your local device. Here's what you need to know about how your data is handled:

  • Local Processing: All image processing, including uploads, resizing, and downloads, occurs locally on your device. No image data is sent to any external servers.
  • No Data Collection: I do not collect, store, or transmit any of your personal information or image data.
  • No Internet Requirement: Once the page is loaded, the tool functions entirely offline. You can even disconnect from the internet, and it will continue to work, try!.
  • Temporary Storage: Images are temporarily stored in your browser's memory during the resizing process. They are automatically cleared when you close the browser tab or window.
  • Download Security: When you download resized images, they are saved directly to your device without passing through any intermediate servers.

By using this tool, you can be confident that your images and data remain private and secure on your own device. If you have any questions or concerns about privacy, please feel free to review the source code of this application.