Quick Answer
For a website header, distinguish CSS display dimensions from the raster file’s pixel dimensions. Choose the displayed logo size within your existing header first, then export a suitable image. Do not enlarge the header just because the source image is large.
Settings for this task
| Decision | Starting point | What to check |
|---|---|---|
| Display size | Defined by the site layout | For example, 180×60 CSS pixels. |
| 2× raster example | 360×120 image pixels | Useful when the source has enough detail. |
| Alternative | Original SVG | Good for vector artwork when your site permits it. |
Worked example
A 360×120 PNG displayed at 180×60 provides a 2× raster without changing the header layout. Set a proportional width and height on the image and constrain it responsively. A file with large transparent borders can still make the visible mark look too small.
Step-by-step workflow
- Measure the existing header’s logo slot.
- Trim unnecessary source whitespace carefully, preserving deliberate clear space.
- Export a proportional raster at the chosen density or retain the original vector.
- Check desktop and mobile layout, including navigation wrapping and loading shifts.
Limits and final checks
A universal 600-pixel header logo is not a requirement. The appropriate file depends on CSS, artwork ratio, device density and the theme’s actual layout.
Related tools for this workflow
Related reading
- Resize Logo for YouTube Channel: Profile Picture, Banner and Thumbnail Sizes
- Logo Size for LinkedIn Company Page: 2026 Upload Guide
- Convert PNG Logo to SVG Free: When Vectorizing Works and When It Does Not
- Make a Logo Background Transparent Without Photoshop
Use the free Logo Resizer
The practical answer to "resize logo for website header" is to open Logo Resizer, upload your logo, apply the settings from this guide, preview the result, and download the final file. The tool runs in your browser, so the logo file stays on your device.
- Upload: PNG, JPEG or WebP source logo.
- Export: PNG for transparency, WebP for small website files, JPEG only for solid backgrounds.
- Quality check: preview the logo at small size before uploading it to the platform.
Sources and editorial review
This guide is maintained by the Webteqno editorial team. Webteqno is founder-led by Wamiq Hussain, whose public founder profile describes 9+ years building 200+ websites. That experience is used here for practical logo sizing, website launch, and small-business brand asset guidance.
Content revised September 6, 2026. Browse placement-specific size presets. Examples above illustrate sizing decisions; they are not claims of independent product testing.