Compress & Resize Images Online — Free, Private, No Upload
Compress images online without uploading them anywhere — everything happens right in your browser, so your files stay completely private.
Drag & drop images here or click to browse
Supports JPG, PNG, WebP, AVIF, BMP, HEIC — multiple files at once
AVIF, BMP, and HEIC files are automatically converted to JPG on export
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How This Free Image Compressor Works
MyTinyImg lets you compress an image online without uploading it to any server. When you drag a photo into the tool, everything — resizing, compression, and format conversion — happens directly inside your browser using JavaScript. Your image is never transmitted anywhere, which means it stays completely private and processing is instant, even for large files.
Not sure which format to export to? Read our guide on JPG vs PNG vs WebP to pick the right one for your use case, or check the best image sizes for Instagram if you're preparing photos for social media. For a deeper look at getting the smallest file size with the least visible quality loss, see how to compress images without losing quality.