VJ Tools

VJ Image Optimizer

Convert heavy PNGs into JPG, WEBP, and optimized PNG for the web. All processing runs in your browser. Files are never uploaded or stored.

1. Choose images

Tip: drag and drop works. Batch limit 10 files (low-power: 5), 20 MB each. PNG/JPG/WEBP only.
    Input total: 0 KB
    Output total: 0 KB
    Saved: 0 KB

    2. Options

    Ready
    Smaller batches and lighter processing for older devices.
    85 (JPG/WEBP only) Locked by max size
    KB per image. When enabled, quality auto-adjusts automatically (required) and the quality slider is locked.
    Add a suffix before the extension, for example -web.

    3. Downloads

    Each file is re-encoded without metadata.

    FAQ

    How does this work?

    Your browser loads the image into memory, draws it on a canvas, and re-encodes it to the selected formats. Files are processed locally and only saved when you download.

    Why is this secure?

    Images never leave your device. There are no uploads or servers involved, and the app runs entirely client-side.

    JPG

    Best for photos. Smaller file sizes with adjustable quality. Not lossless.

    WEBP

    Modern format with very good compression. Supported by most modern browsers.

    PNG

    Lossless format. Good for graphics and transparency but usually larger files.

    Max output size

    Enable max size to target a KB limit per image. Quality auto-adjusts automatically to hit the target for JPG/WEBP, and the quality slider locks while it is active.

    Low-power mode

    Low-power mode is for older or slower devices (for example, 4 GB RAM or less). It limits batch size to 5, reduces the quality search work, and adds small pauses between files to keep the browser responsive.