Image Quality Reducer
Fine-tune exact image quality percentage (1%-100%) with live zoom-in comparison.
Drop your image here
Drag & drop single photo for Studio Mode, or multiple photos for 1-Click Batch Processing
Your images stay on your device
Processing happens 100% locally in your browser. Files are never uploaded to any cloud server.
How to use this tool
Select Photo
Upload your JPEG or WebP image.
Slide Target Quality
Drag the quality slider from 1% to 100% and watch real-time size reduction.
Download
Save your newly balanced image.
Why use Image Toolkit?
Granular 1% Stepping
Allows precise calibration of size constraints for strict web upload limits.
How Image Quality Reducer Works in Your Browser
Unlike conventional online conversion websites that upload your files to remote cloud servers, Lumino processes your media 100% client-side inside your browser sandbox using modern WebAssembly (WASM), WebGPU, and the HTML5 Canvas 2D API.
This means your sensitive photos, identity cards, passport scans, and proprietary design files are processed directly on your local device hardware (RAM/GPU) and are never transmitted across the internet.
Everything You Need to Know
Clear answers on privacy, security, file limits, and image quality.
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