Increase image size in KB

Raise a file above a form's minimum size without changing how it looks.

Preset

Drop images here, or paste with Ctrl+V

JPG, PNG, WebP, GIF or HEIC. Several at once is fine.

Settings size, KB limit, format, DPI
1 to 100, empty = automatic

    Your images are processed on this device and never uploaded.

    Crop image

    Drag the box to move it and the corners to resize. With the box focused, arrow keys move it and Shift+arrow keys resize it.

    Example with a real photo

    We ran this tool on the photo below. These are the real results.

    Original300 × 450 px · 8.3 KB · JPG
    Result300 × 450 px · 45.8 KB · JPGThis is the actual file the tool made.

    Photo: Unsplash

    What this page does
    Minimum sizePick 20, 50 or 100 KB, or type your own in Settings
    MethodTop JPG quality first, then invisible padding if needed
    DimensionsUnchanged

    How to use it

    1. Pick the minimum size your form asks for, or type it in Min KB.
    2. Choose or drop your image.
    3. Download the file. Its size is shown under the preview.

    Why a form says your file is too small

    Some forms reject photos below a minimum size, often 10 KB or 20 KB, because tiny files are usually low quality. A photo taken on a phone and shared through a messaging app can end up smaller than the minimum.

    This tool first re-saves the image at the highest JPG quality. If that is still below your minimum, it adds a comment block that image viewers ignore. The picture stays the same and the file passes the size check.

    Making the picture larger instead

    If the form also asks for bigger dimensions, enter the width and height in Settings. A bigger image naturally takes more kilobytes, so you may not need padding at all.

    Questions

    Will increasing the KB make my photo sharper?

    No. Extra kilobytes cannot add detail that the original photo does not have. This tool only makes the file meet the size rule. For a sharper result, start from the original photo instead of a forwarded copy.

    Can I set a maximum too?

    Yes. Open Settings and fill in Max KB. The tool keeps the file between the two limits.

    Is my photo uploaded to a server?

    No. The resizing runs inside your browser with JavaScript, so the image never leaves your device. Once the page has loaded, resizing keeps working even if you go offline.