Favicon Generator
Drop a PNG, JPG, or WebP image and generate common favicon sizes such as 16, 32, 48, 180, 192, and 512 pixels locally.
Runs locally in your browser. This tool does not upload your input.
Input
Or drop an image .png, .jpg, .jpeg, .webp · up to 2.0 MB. Read in your browser, never uploaded.
Use a square source image when possible. Output files are generated locally.
Drop an image to generate common favicon sizes.
Results
- Sizes
- 6
- Format
- PNG
Drop an image to generate common favicon sizes.
How to generate favicon sizes
Upload an image in the browser and create common PNG favicon sizes for a website or app.
What it produces
The tool creates several square PNG sizes commonly used for favicon and app icon setups.
Image recommendations
- Start with a clear square image when possible.
- Use enough contrast so the icon stays readable when small.
- Download the generated sizes and add them to your project.
Browser processing
The uploaded image is decoded and resized with browser APIs, so it does not need a server round trip.
Image stays local
The source image is read in your browser and is not sent to ProntoUso.
Favicon generator FAQ
- Which output format is used?
- This version generates PNG files in common square sizes.
- Does it crop my image?
- The image is drawn into a square canvas. Starting with a square source gives the best result.
- Is the file uploaded?
- No. The browser reads and resizes the image locally.