Privacy-First Image Editing — No Upload, 100% Local

Every time you use an online image editor, your photos are typically uploaded to a remote server. That means your private images — family photos, ID scans, legal documents — are sent to and stored by a company you know nothing about. Resizo takes a fundamentally different approach: all processing happens 100% in your browser. Nothing is ever uploaded.

What Happens When You Upload an Image to an Online Tool?

When you use a typical online image resizer or compressor, your image is:

• Uploaded to a remote server over the internet
• Stored temporarily (or permanently) on that server
• Processed by server-side code you cannot inspect
• Potentially accessible to the company's employees
• Subject to that company's data retention policies

Real Privacy Risks of Cloud-Based Image Editors

• Data retention: Many services keep uploaded images for hours, days, or indefinitely — even after you leave the site.
• Third-party access: Servers can be breached. Your private images could end up in a data leak.
• AI training data: Some services use uploaded images to train machine learning models — your photos could appear in AI-generated content.
• GDPR compliance: Uploading EU citizens' personal data (photos with faces, documents) to non-compliant servers can violate GDPR regulations.

How Browser-Based Image Processing Works

Resizo uses the HTML5 Canvas API and JavaScript Blob objects to process images entirely within your web browser. Here is what that means in practice:

• Your image is loaded into browser memory — it never leaves your device
• The Canvas API resizes and compresses the image using your device's processor
• The result is generated as a downloadable file, still in your browser
• When you close the tab, everything is deleted from memory automatically

Why Resizo Is Different — 100% Local Processing

Resizo was built with a privacy-first architecture. There is no server-side processing at all. No image data is transmitted. No cookies track your uploads. No account is required.

Use Cases Where Privacy Matters Most

• Legal documents: Contracts, court filings, notarized documents
• Medical images: X-rays, prescriptions, health records
• Identity documents: Passport photos, driving licenses, ID cards
• Private business assets: Product prototypes, unreleased designs, financial statements
• Personal photos: Family photos, children's photos

How to Resize & Compress Images Privately with Resizo

• Step 1: Open Resizo in any browser.
• Step 2: Drop your image — it stays on your device.
• Step 3: Resize or compress as needed.
• Step 4: Download the result. Close the tab — done. Nothing stored anywhere.