One image
Source images
JPEG, PNG, WebP
Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. One source image.
Website Thumbnail Maker
Generate three editable width variants at the original aspect ratio.
Open this toolWebsite layouts can use several image widths while keeping one original aspect ratio.
Set the three width variants and compare their resulting heights.
Inputs and controls
Small width
Tool inputs
Allowed range: 16 to 2000
Medium width
Tool inputs
Allowed range: 16 to 2000
Large width
Tool inputs
Allowed range: 16 to 2000
Download format
Tool inputs
PNG, preserves alpha, JPEG, flattens alpha, WebP, server support needed
Quality
Tool inputs
Allowed range: 1 to 100
How to use
- Choose a static JPEG, PNG or WebP source. Check the displayed upload limits before processing.
- Set Small width, Medium width, Large width, Download format and Quality. Review the selected units and options before preparing the output.
- Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need.
Why use this tool
The variants provide separate size choices from one source without inventing a cover crop.
Before relying on the result
Compare the finished picture with its source. They retain the source ratio. Use a crop tool first if the layout requires another shape.
Questions
Are these fixed ratio cropped thumbnails?
No. They retain the source ratio. Use a crop tool first if the layout requires another shape.
What should I check before using Website Thumbnail Maker?
Prepare a supported source image and check Small width, Medium width, Large width and Download format. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-04T18:22:35+00:00. This profile describes the tool; use its page to run it.
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