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Compress PNG Images

Compress up to 30 images at the same time, quickly reduce file size without losing quality. Files are not uploaded to the internet —all processing happens locally on your device. All features are free to use.

Select PNG Files

Drag & Drop PNG images onto this page, or use Paste (Ctrl + V / ⌘ + V) for quick import.

PNG Compression Guide

  1. What is a PNG Image?

    PNG (Portable Network Graphics) is a widely used lossless image format that supports transparent backgrounds, high-quality image rendering, and rich color depth. Unlike JPG, PNG preserves image data during compression, making it ideal for logos, icons, screenshots, UI designs, illustrations, and images that require transparency.

  2. Why Compress PNG Images?

    While PNG provides excellent image quality and transparency support, its file sizes are often much larger than JPG images. Compressing PNG images can significantly reduce file size while preserving image clarity and transparency, helping save storage space, improve upload speeds, and optimize website performance.

  3. How to Compress PNG Images?
    • Click the Select PNG Files button or simply drag and drop your images onto the page.
    • Click the Compress button to automatically optimize PNG images, remove unnecessary data, and reduce file size.
    • Preview the compressed PNG image and use the Quality & Resize options to fine-tune the file size of individual images.
    • Click Save to download a single file, or Save All to download all compressed PNG images at once.
  4. When Should You Compress PNG Images?
    • Website Image Optimization

      PNG is commonly used for logos, icons, interface elements, and transparent graphics. Compressing PNG images reduces page weight and improves website loading speed.

    • Logos and Transparent Images

      Brand logos, product assets, and transparent-background graphics are often stored as PNG files. Compression makes them easier to use on websites and applications.

    • UI Design and Prototyping

      Images exported from Figma, Sketch, Adobe XD, and similar design tools can be large. Compressing PNG files improves sharing and collaboration efficiency.

    • App and Software Development

      Icons, buttons, and UI assets in mobile and desktop applications frequently use PNG. Compression helps reduce application size and improve loading performance.

    • Screenshots and Document Sharing

      Screenshots are often saved as PNG files. Compressing them makes sharing through email, messaging apps, and online documents more convenient.

    • Social Media Publishing

      When sharing images on platforms such as Instagram, Facebook, X (Twitter), TikTok, and WeChat, compressing PNG files can reduce upload times and bandwidth usage.

    • Email Attachments

      PNG files are often relatively large. Compression helps meet email attachment size limits and improves sending efficiency.

    • CMS and Website Uploads

      Content management systems such as WordPress often impose upload limits. Compressing PNG images improves upload success rates.

    • CDN and Bandwidth Optimization

      Compressing PNG images reduces data transfer, lowering CDN traffic usage and server bandwidth costs.

    • Storage Management

      When storing large collections of design assets, screenshots, and transparent graphics, PNG compression helps save both local and cloud storage space.

  5. Privacy & Security
    • 100% Local Processing — Your images never leave your device. All compression is performed securely in your browser.
    • No File Uploads — Images are never sent to a server, giving you full control over your data.
    • Privacy First — We do not view, store, or collect any of your image data.
    • No Registration Required — Open the tool and start compressing instantly.
    • Original Files Remain Unchanged — Compressed images are created as new files, leaving your original images untouched.