4K Image Compressor

About

4K Image Compressor is a desktop app for Windows, macOS, and Linux that reduces the file size of JPG, JPEG, PNG, HEIC, WEBP, and PDF files. You can set a target by percentage or by a specific size in MB, KB, or bytes, which helps with web uploads, email attachments, and storage limits. The app also supports batch processing for multiple images at once, format conversion between supported types (such as JPG to PNG or HEIC to WEBP), and a quality comparison tool to view original and compressed versions side by side.

The app is aimed at web developers and designers who want faster page loads, photographers who need smaller files for storage or sharing, social media users who must meet platform size limits, and mobile app developers who want to reduce images that slow performance. It works without an Internet connection, so images stay on your computer, and the company states that it does not track users or collect personal data.

A free Starter plan provides permanent access to basic features, while the Pro plan, listed at $15 for a lifetime license, unlocks all features and includes a commercial use permit.