YouTube enforces a 2MB file size limit for custom thumbnails. Large PNG files from design software often exceed this. Our tool compresses to under 2MB while keeping your thumbnail sharp and click-worthy.

YouTube recommends 1280×720 pixels (16:9 aspect ratio) with a minimum width of 640 pixels. Our tool preserves these dimensions while only reducing file size. We cap at 1920px width if needed to hit 2MB.

We use smart JPG compression that prioritizes visual quality. Starting at your chosen quality level (default 82), we only reduce further if needed to hit 2MB. Most thumbnails look identical to the original.

This is exactly what our tool solves! Drop your image here and we'll compress it to under 2MB automatically. The process takes seconds and works with PNG, JPG, WebP, AVIF, and HEIC files.

Yes! Drag and drop multiple images or upload a ZIP archive. Perfect for creators who batch-produce content. Folder structure is preserved when you download.

JPG is best for YouTube thumbnails because it produces smaller files while maintaining good quality. PNG files are often 5-10x larger. Our tool converts to optimized JPG automatically.

Yes, 100%. All compression happens locally in your browser using JavaScript. Your thumbnails are never uploaded to any server. We never see, store, or have access to your images.

Design tools often export at maximum quality or with extra metadata. Our tool strips unnecessary data and optimizes compression specifically for YouTube's requirements.