One2Image – Image Optimizer

One2Image – Image Optimizer compresses, resizes and converts WordPress media in your browser. Unlike cloud image APIs, processing runs locally in the browser Canvas — images are never sent to One2Image for optimization.

What makes it different

• Browser-based compression, resize and format conversion (JPEG / PNG / WebP)
• No external image-processing service, API key, account, or quota
• Original Media Library files stay intact — saves create a new attachment
• Works for roles that can upload media; site-wide settings require an administrator

Local processing

• Image processing happens locally in your browser.
• Your images are never sent to One2Image.
• No One2Image API key, account, subscription, or quota is required.
• The only network transfer in the main workflow is between your browser and your own WordPress site, when you choose to save.

Features

• Dashboard with library stats (no invented “potential savings”)
• Media Optimizer table with filters and search
• Quick Optimize / batch (up to 20 images, sequential)
• Smart format selection (keeps the lightest real result; skips if nothing is smaller)
• Manual optimize: compress, resize, convert (JPEG/PNG/WebP), rotate
• Save as a new Media Library attachment (original always stays intact)
• Settings for quality, max width, preferred format, batch size (administrators only)

Privacy

Canvas re-encoding typically strips embedded EXIF / IPTC / XMP metadata. WordPress attachment fields (title, alt text, caption, description) are copied to the new image when you save.

Development

Human-readable JavaScript / TypeScript sources ship with the plugin in src/.

Compiled assets under assets/js/ are produced with esbuild (see package.json).

Rebuild:

1. npm install

2. npm run build:js

   media-bridge.js is maintained as readable JavaScript and is not built from TypeScript.

Translations for WordPress.org are managed on translate.wordpress.org (Text Domain: one2image).

Privacy

This plugin does not phone home. It does not embed advertising trackers, analytics beacons, or telemetry to One2Image.

Optional links to one2image.com / one2pdf.com are voluntary navigation only and use non-personal UTM parameters (utm_source=wordpress_plugin).

When you click Save as new image (or batch save), the optimized file is sent from your browser to your WordPress site using the WordPress REST API on your domain.