Resize Images Locally Before WordPress Upload: A Privacy Checklist

Step 2 — Crop what you do not need

Crop out sidebar nav or chat bubbles that leak context before you resize.

Step 3 — Resize in the tab

Drop the file into a browser-local image resizer. Closing the tab should clear in-memory copies; the file you download is the artifact you upload.

Step 4 — Upload once

Skip the detour through a random “free resize online” host for images you would not email to a stranger.

One browser-local starting point

When you need an on-device image resizer without creating an account, this Image Resizer runs in the tab (files stay on your device):

https://www.lizecheng.net/image/image-resizer/?utm_source=devto&utm_medium=article&utm_campaign=lizely_daily_20260925&utm_content=image-resizer

(That is the only product link in this post.)

What “good enough” looks like

Scenario	Local move
Featured image with staging URL in corner	Crop + resize locally → upload once
Client UI bug report for WP post	Resize locally → attach
Marketing asset with emails visible	Redact + resize locally
Mixed public hero + private panel	Two files; never upload the private panel

Closing

Image sizing is a solved UX problem. The open question is whether the pixels leave your device on the way to your media library. Prefer tools you can verify with Network + offline checks — and keep cloud resizers for photos you would not mind a stranger viewing.