Image Thumbnail Generator
Generate thumbnails from a folder of images. Set max dimensions, download all as ZIP. Zero uploads.
Want the thumbnail of a YouTube video instead? Use the YouTube thumbnail downloader.
Drag & Drop images here
or click to select a folder of images
Generate thumbnails from an entire folder instantly
Creating thumbnails one-by-one in Photoshop or another editor is time-consuming for large image libraries. This tool accepts all your images at once and produces consistently sized thumbnails in seconds. The ZIP output mirrors the filenames of the originals with a configurable suffix (e.g. photo01_thumb.jpg), so they're easy to map back.
FAQs
What thumbnail sizes are common?
E-commerce: 200×200 or 300×300. Blog cards: 400×300. Video previews: 320×180. Avatars: 150×150. Presets above cover the most common sizes.
Does it preserve aspect ratio?
Yes by default (Fit mode). Fill mode crops to the exact specified dimensions for uniform square grids.
Are originals changed?
No. Thumbnails go into a ZIP. Originals are never touched.
Can I customize the output thumbnail suffix?
Yes. You can customize the filename suffix (like _thumb or _small) so generated thumbnails never overwrite your originals.