https://www.imageoptimizer.org/ · Developer Tools
5 items
Compress, convert, and resize images locally in your browser. No upload, no account. Right-click any image to save optimized copy. Image Optimizer compresses, converts, and resizes images entirely on your device — no upload and no account required. WHAT YOU CAN DO • Right-click any image on the web → Optimize image → save to Downloads • Open the full optimizer from the toolbar for batch compression (up to 10 images) • Use the side panel while you browse • Choose WebP, AVIF, JPEG, or PNG and adjust quality • Resize with presets; download single files or a ZIP PRIVACY FIRST • Images never leave your browser • No sign-in required for the extension • Local processing only — your files stay on your device FREE EXTENSION LIMITS • Up to 10 images per batch • 10 MB per file, 100 MB total per batch • Images over 4096px are auto-resized NEED MORE? Visit imageoptimizer.org for wasm-vips quality, AI smart filenames, bulk cloud export, and higher limits. Homepage: https://www.imageoptimizer.org Privacy policy: https://www.imageoptimizer.org/privacy-policy
Jul 3, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.