Image Optimizer
Professional compression engine — high-quality JPEG, optimized PNG and next-gen AVIF, processed locally in your browser. Free, unlimited.
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Supports JPG / JPEG / PNG / WEBP, up to 40MB
- Оптимизация выполняется в вашем браузере (при первом использовании загружается движок; большие изображения: 1–5 секунд)
- Результаты хранятся 24 часа, затем автоматически удаляются
- Задача сохраняется автоматически: можно закрыть страницу и вернуться в течение 24 часов (хранится только последняя задача; не используйте режим инкогнито и не очищайте кеш браузера)
После завершения обработки результат будет отправлен на этот адрес (один раз)
Paint over areas to remove
Paint over the people, objects, watermarks or blemishes to remove — AI will fill the background. Cover the area fully for best results.
Оптимизированный результат появится здесь после загрузки
How the Professional Compression Engine Works
This image optimizer bundles a professional open-source compression engine that runs entirely in your browser. JPEG uses progressive encoding with optimized quant tables — the low-res outline loads first, then detail sharpens progressively; combined with quantization tuned to human visual sensitivity, files are smaller at equal quality and load perceptually faster. PNG is optimized losslessly — compression parameters and filtering are recomputed so not a single pixel is lost while the file shrinks noticeably, ideal for transparency or pixel-perfect output. AVIF is based on AV1 video coding technology and compresses still images with intra-frame coding: about 50% smaller than JPEG and 20-30% smaller than WebP at the same quality, making it one of the best choices for modern web images. All encoding happens locally — your image never leaves your device.
Who It's For
Professional image optimization serves anyone who cares about both quality and size: photographers and designers deliver work that keeps detail while staying manageable; e-commerce product shots where image quality drives conversion; blogs and content sites that stay crisp yet load fast; long-term photo archives where lossless-optimized PNG and efficient AVIF are ideal. All free, no sign-up — just open the page and optimize.
FAQ
Is this tool free?
Yes, completely free with no sign-up and no usage limits.
How is this different from the Image Compressor?
Image Compressor is the quick & simple version. Image Optimizer uses a professional open-source compression engine: higher-quality JPEG encoding (progressive + optimized quant tables), lossless PNG optimization (same quality, smaller files), and the next-gen AVIF format (20-50% smaller than WebP at the same quality).
What is AVIF?
AVIF is a next-generation image format based on AV1 video coding technology, far more efficient than JPEG and WebP. Modern browsers (Chrome, Firefox, Safari 16+) preview and use it natively.
Does PNG optimization lose quality?
No. PNG optimization is lossless: only the compression algorithm and parameters are re-optimized — every pixel is preserved, while the file gets noticeably smaller.
Which image formats are supported?
JPG, JPEG, PNG and WEBP input (up to 40MB); output as JPEG, PNG or AVIF.
What is the output format?
The format you choose (JPEG by default). The download is named "name-optimized.extension".
Is my file stored?
No. Images are automatically deleted within 24 hours after processing (same as our other tools).
Can I close the page after uploading?
Yes. Your task is saved in this browser automatically — come back within 24 hours to see the results (only the latest task is kept; do not use private browsing or clear your browser cache).