About This Tool

Simple Image Compressor is a privacy-first, performance-oriented image optimization utility. Every operation — decode, resize, format conversion, and compression — runs entirely inside your browser. Your files never leave your device. Designed for creators, developers, and teams handling sensitive assets, it offers transparent behavior without ads, trackers, or server-side processing.

Core Principles

Local Only: Zero uploads. Suitable for confidential or regulated content.
Efficiency: Batch compression, ZIP export, and HEIC → JPEG conversion.
Control: Adjustable quality, target size approximation, selective format conversion.
Integrity: No cookies, analytics, or persistent user profiling.
Accessibility: Keyboard focus, clear contrast, responsive layout.

Feature Highlights

Batch process up to 50 images per session.
JPEG / PNG / WebP conversion with transparency preservation (PNG/WebP).
Automatic HEIC decoding to JPEG (where browser APIs allow).
Target size (KB) iterative compression loop for approximate goals.
Comparison view to visually inspect fidelity and size savings.
Bulk ZIP export or per-image downloads with original filenames.
Optional dimension caps while maintaining aspect ratio.
PWA capabilities for offline reuse after initial load.