Compress Image Online

Shrink photos before you Base64-encode them. Processing stays on your device—no upload—so you save mobile data and keep private pictures local. Pick max width, quality and WebP or JPEG, then download or copy a data URI.

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Save mobile data: compress before you share or Base64

In Brazil and other markets where prepaid data is expensive, uploading a 4K photo just to shrink it wastes the plan. This tool never uploads: it resizes and re-encodes locally, then lets you download or embed as Base64/data URI for HTML, CSS or APIs.

  • WebP is usually the smallest for photos in modern browsers.
  • JPEG when you need maximum compatibility (e-mail, older apps).
  • PNG for UI/screenshots with sharp edges (larger files).

Next step for developers: Image to Base64 or read Compress before Base64.

Často kladené otázky

Why compress before Base64?

Base64 makes files ~33% larger as text. Compressing the image first (and converting to WebP) often cuts the final Base64 string by half or more.

Is this good for Brazil / expensive mobile data?

Yes. Everything runs locally, so you do not upload a large original just to compress it. Smaller files also mean cheaper WhatsApp, e-mail and hosting transfers.

Do you upload my photos?

No. Compression uses the browser Canvas API. Your image never leaves the device.

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