Works 100% Offline

Secure Offline Image Compression &
Smart Batch Renaming

The privacy-first tool that runs entirely in your browser. No server uploads. Choose to organize files with smart renaming or keep original names intact.

Verify it yourself:

Load this website, then turn off your internet/WiFi. You can still compress and rename unlimited images because everything happens locally on your device.

No Server Uploads
Files stay on your device
Instant Processing
Zero latency, no waiting
Original Names
Preserve filenames option

Secure & Fast Image Optimization

Designed for speed, security, and flexibility.

Optional Renaming

New! You are in control. Enable smart renaming to organize files by date, or disable it to keep your original filenames exactly as they are.

100% Offline Security

We don't need your data. The app runs locally using WebAssembly/JS. Feel free to disconnect your internet while using the tool.

Smart Date Detection

If renaming is ON, we automatically detect 8-digit dates (YYYYMMDD) in filenames and format them perfectly in the new name.

Advanced Batch Renaming Logic

Toggle renaming ON for organization, or OFF to keep originals.

Option A: Renaming ON
Original
DSC_20260303_123.jpg
Result
IMG_001_20260303.jpg
Option B: Renaming OFF
Original
My_Vacation_Photo.jpg
Result
My_Vacation_Photo.jpg

Frequently Asked Questions

Everything you need to know about PurePixel.

Yes. PurePixel uses browser-based technologies (WebAssembly and JavaScript) to process images directly on your device. Once the page is loaded, you can disconnect from the internet and it will continue to work perfectly.

You have full control. You can adjust the quality slider from 0-100%. Usually, a setting of 80% provides significant file size reduction with virtually no visible difference in quality.

PurePixel currently supports JPG, PNG, and WebP formats. It can compress these formats and even convert them to optimize for web usage.

Our algorithm looks for common date patterns (like YYYYMMDD) in your filenames. If found, it preserves them while organizing the rest of the name into a clean "IMG_Sequence_Date" format. If no date is found, it uses the current date.