Client-side tools: Photos stay on your device
Tools like PhotoResizer.in process images entirely in your browser. The photos are loaded into your browser's memory, processed using JavaScript, and the result is saved directly to your device. Nothing is ever sent to a server.
Server-based tools: Your photo takes a journey
- Photo is uploaded to the tool's server (usually via HTTPS).
- Server processes the image (resize, convert, etc.).
- Processed result is sent back to you.
- What happens next depends on the tool's policies — the original may be kept, deleted after hours, or used for AI training.
How to check what a tool does with your photos
- Read the Privacy Policy and Terms of Service.
- Look for mentions of "data retention", "server storage", and "third-party sharing".
- Check if the tool is GDPR compliant (GDPR guide).
- Prefer tools that explicitly state client-side processing.