One image. Every shape you need. Frame it, preview it, and download ready-to-use files.
JPEG, PNG, or WebP · Up to 15 MB / 40 MP · No upload to a server
Choose an image to preview your crop. All processing stays on your device.
Upload a JPEG, PNG, or WebP image. Your image is processed in this browser and is not uploaded to a server.
Select an output format, choose crop or fit, and adjust the horizontal and vertical framing.
Download the selected size or export all presets as a ZIP. Choose PNG for crisp graphics or JPEG for photos.
Square works for a balanced feed layout, portrait gives a vertical composition more room, story fills a tall canvas, and landscape suits wide artwork. These are practical export presets, not a guarantee of acceptance in every social placement.
Crop fills the canvas and removes the edges that do not fit. Move the framing controls to keep your subject visible. Fit preserves the entire image and adds your chosen background color in the remaining space.
Enlarging a small source image can make it look soft. This tool resizes pixels; it does not use AI to invent detail. Start with the largest original available and preview small text before downloading.
No. Resizing, previews, and downloads happen in your browser. The tool does not send the image to Postly or an AI provider.
You can open JPEG, PNG, and WebP files up to 15 MB and 40 megapixels. Export PNG or JPEG. Animated files, SVG, and HEIC are not supported.
Yes. Download all four presets as a ZIP. The selected crop or fit mode, framing, background, and export format apply to each size.
No. Exported images contain your artwork and the background you choose. No Postly watermark is added.
A square feed image and a vertical story frame need different compositions. When resizing a social image, keep faces, logos, and text away from the edges. Cropping fills the frame but removes content; fitting preserves the image and may leave space around it. Inspect the exported file before using it.
Postly media library