Resize PNG Image

    Resize PNG images to any custom dimension — lossless quality, full transparency, and entirely inside your browser.

    1Upload
    2Set Size
    3Download

    What is PNG resizing?

    PNG resizing changes the pixel dimensions (width and height) of a PNG image while preserving its lossless compression and full alpha transparency. Unlike lossy formats, resized PNG files retain every pixel perfectly — making this tool ideal for logos, icons, UI elements, screenshots, and any graphic that demands crisp edges and transparent backgrounds. PngExport processes everything locally in your browser, so your images are never uploaded to any server.

    Why resize PNG images?

    Preserve lossless quality

    PNG resizing maintains pixel-perfect quality with zero compression artifacts — ideal for sharp text and detailed graphics.

    Keep transparency intact

    Resized PNG files preserve full alpha transparency — perfect for logos, icons, and overlay graphics.

    Optimize page load speed

    Smaller PNG dimensions mean smaller file sizes, improving website loading times and Core Web Vitals scores.

    Match layout dimensions

    Resize PNGs to exact pixel widths for website containers, email templates, and application interfaces.

    Mobile & retina ready

    Create properly sized PNG assets for mobile apps and high-DPI retina displays.

    100% private & secure

    All processing runs locally in your browser. PNG files are never uploaded to any external server.

    How to resize PNG images online

    1

    Upload your PNG

    Drag and drop or select a PNG file from your device.

    2

    Set custom dimensions

    Enter width and height in pixels. Toggle the aspect ratio lock to maintain proportions.

    3

    Resize & download

    Click the button to process locally and download the resized PNG instantly.

    Common use cases for PNG resizing

    Logo & branding assets

    Resize logos to exact sizes for websites, social media profiles, and marketing materials while keeping transparent backgrounds.

    Web UI components

    Scale icons, buttons, and interface elements to match responsive layouts and design specifications.

    App store screenshots

    Resize screenshots to required dimensions for Apple App Store and Google Play Store listings.

    Mobile app icons

    Generate PNG icons at specific sizes for iOS (1024×1024) and Android (512×512) app submissions.

    Blog & content images

    Scale PNG graphics to match content column widths for faster page loads and better SEO.

    Presentation graphics

    Resize PNG charts, diagrams, and infographics for PowerPoint, Keynote, and Google Slides.

    Features of the PNG resizer

    Resize PNG images to any custom width and height
    Lossless quality — no compression artifacts
    Full alpha transparency preservation
    Lock or unlock aspect ratio to prevent distortion
    100% free with no signups, limits, or watermarks
    All processing runs locally — no server uploads
    Instant download with no queues or wait times
    Works on Windows, macOS, Linux, iOS, and Android

    Frequently asked questions

    Yes. The Resize PNG tool on PngExport is completely free — no signups, no usage caps, and no watermarks on your resized images.

    Yes. The resized output is exported as a lossless PNG that fully preserves alpha transparency channels. Transparent backgrounds, semi-transparent overlays, and all alpha data remain intact.

    PNG uses lossless compression, so the resized image maintains perfect pixel quality. Downscaling preserves excellent visual quality, while upscaling beyond the original resolution may reduce sharpness.

    No. All resizing runs locally in your browser using web workers. Your PNG files never leave your device — ensuring complete privacy and security.

    Yes. The tool is fully responsive and works on any modern browser across desktop, tablet, and mobile devices — no app installation required.

    There is no fixed limit. The tool processes images locally using your device's memory and processing power. Most modern devices handle images up to 20+ megapixels without issues.