Learn how to compress images privately, choose the right format, and optimize for web, email, and social media.
Understand the privacy risks of uploading images to third-party services and why local compression matters for GDPR and business security.
Step-by-step guide to using local, private image compression tools that never require uploads.
Learn how browser-based compression works and why it's the safest option for sensitive images.
Complete guide to achieving 50-70% file size reduction while maintaining visual quality across formats.
Exact settings and techniques to hit specific file size targets for emails and web uploads.
Practical steps for compressing any image for email attachments and online platforms.
Optimization techniques to speed up websites while keeping images looking sharp.
Settings and file size recommendations for email attachments across all major platforms.
Platform-specific dimensions and compression settings for optimal social media uploads.
Introduction to browser-based compression tools for maximum privacy.
Comprehensive comparison of the most common image formats and when to use each one.
Comparison of next-generation image formats and browser support in 2026.
Detailed comparison of image compression tools and when to use each one.
Reviews and alternatives to popular paid and free compression tools.
Privacy analysis of TinyPNG and other popular online compression services.
Use our free, private image compressor to reduce file sizes without uploading to any server.
Open Compressor