Overview
Introduction
This tool resizes a logo to an exact pixel width and height, entirely in your browser, using the same nearest-neighbor resampling as the site's general PNG resizer.
It's a straightforward way to fit a logo into a specific dimension requirement without a design tool.
What Is Logo Resizer?
A logo-focused wrapper that reads an uploaded logo's pixel data and resamples it to your chosen target width and height, one output pixel at a time.
It validates that both dimensions are whole numbers within the site's supported range before processing.
How Logo Resizer Works
For every pixel in the target-sized output, the tool maps back to the nearest corresponding pixel in the source image (based on the ratio between source and target dimensions) and copies its exact color.
This keeps hard edges sharp, which suits flat-color logo artwork well, though it can look blocky at extreme upscales.
When To Use Logo Resizer
Use it to prepare a logo for a fixed-size slot: a favicon, an app icon, a social media profile image, or a header that expects specific dimensions.
It's also useful for quickly checking how a logo reads at a smaller size before finalizing an asset.
Often used alongside Logo Cropper, Logo Rotator and Logo to Grayscale Converter.
Features
Advantages
- Runs entirely client-side; nothing is uploaded to a server.
- Exact pixel control over both width and height.
- Fast, deterministic nearest-neighbor resampling.
Limitations
- Doesn't preserve aspect ratio automatically — mismatched target dimensions will stretch the logo.
- Nearest-neighbor resampling can look blocky on large upscales, since it doesn't interpolate between pixels.
Examples
Best Practices & Notes
Best Practices
- Calculate target dimensions that preserve the source's aspect ratio unless stretching is intentional.
- Avoid extreme upscales; start from the highest-resolution source logo available.
Developer Notes
This lib function is a thin, validating wrapper around the already-shipped `resizePng` from the general PNG category, which itself builds on the shared `resizeNearest` helper — no new resampling math was written for the logo use case.
Logo Resizer Use Cases
- Generating a favicon-sized logo asset
- Fitting a logo into a fixed banner or header dimension
- Producing a smaller logo variant for a mobile app icon
Common Mistakes
- Entering target dimensions that don't match the source aspect ratio, causing unwanted stretching.
- Upscaling a small logo far beyond its native resolution and expecting smooth results.
Tips
- Divide the source width and height by the same factor to resize proportionally.
- Follow up with the Logo Edges Cleaner tool if a heavily downscaled logo shows stray pixels.