CompressImg

Resize Image to 500KB Online Free

Automatically reduce any image to under 500KB — blog posts, email attachments, web uploads, and visa applications. JPEG output, 100% browser-based and private.

KB

Drop image here or click to upload

JPG, PNG, WebP, HEIC — max 20MB

⚡ Resized in seconds·🔒 Files never leave your device·✓ Free, no sign-up

Who Needs Images Under 500KB?

A 500KB limit allows for larger, higher-quality images — common for blog posts, email newsletters, online store previews, and some visa and passport portal uploads. You get more flexibility with quality and dimensions than lower KB limits.

Portal / FormSize requirement
WordPress featured images100–500KB recommended for speed
Shopify product previewsUnder 20MB (500KB optimal for speed)
Email newsletters (Mailchimp, etc.)Under 500KB per image
Schengen visa (EU)Photo: under 500KB
Australia ETA / eVisitorPassport scan: under 500KB
Vietnam e-VisaPhoto: 2MB (500KB is safe)
LinkedIn background photoUnder 8MB (500KB for fast load)

For blog images: 1280×720px JPEG at quality 80 typically produces 150–350KB — high enough quality for retina screens, well within 500KB, and fast enough to not hurt Core Web Vitals.

How to Resize Image to 500KB — 3 Steps

  1. 1

    Target is set to 500KB

    The tool is pre-set to 500KB. You can change the target at any time using the preset buttons or by typing a custom value.

  2. 2

    Upload your image

    Click the upload area or drag and drop your JPG, PNG, WebP, or HEIC file. The tool starts processing immediately — no extra buttons to click. HEIC photos from iPhone are automatically converted.

  3. 3

    Download and use

    When the result shows "Under 500KB target ✓", the file is ready to upload to your portal, form, or application. Download the JPEG and attach it directly.

Privacy — Your Files Never Leave Your Device

All resizing happens 100% in your browser. No image is ever uploaded to any server. Government IDs, passport photos, and application documents are sensitive — this tool never touches a server.

Frequently Asked Questions