Favicon Generator

Create favicons from an image online

Websites need multiple icon sizes for browser tabs, bookmarks, iOS home screens, and Progressive Web Apps. This tool builds the full set from one source image.

How to generate favicons

1. Upload a PNG, JPG, or WebP image (ideally square, at least 512×512 px).
2. Click Generate Favicons to create all sizes.
3. Download individual files, grab the ZIP, or copy the HTML snippet into your site header.

What Favicon Generator does

This browser-based tool helps you create a favicon set from an image without installing desktop software or sending the selected file to an image-processing server. It creates PNG icons from 16 to 512 pixels, a multi-size favicon.ico, a ZIP and an HTML snippet. The editor is intentionally focused: it exposes the controls needed for this task and shows the result before you save it.

The available controls cover source crop, generated size previews, individual downloads and ZIP download. Use the original file when possible, review the preview at a useful zoom level and keep the untouched source after downloading. A browser tool can make the requested pixel operation convenient, but it cannot recreate missing detail or judge whether an image is suitable for every destination.

A reliable step-by-step workflow

1. Choose a clear source image in one of the formats shown by the upload field.
2. Wait for the preview to appear and confirm that orientation, colours and transparency look as expected.
3. Adjust source crop, generated size previews, individual downloads and ZIP download. Make one meaningful change at a time so it is easy to compare the result.
4. Inspect small text, faces, edges and transparent areas before downloading.
5. Save the result with a descriptive filename and keep the original separately.

If the destination specifies pixel dimensions, file weight or a particular format, check those requirements independently. Editing appearance does not automatically satisfy a size limit, and converting or compressing afterward may change the result again.

Understand the controls and downloaded file

The generated set includes common browser, Apple touch and PWA sizes. A square source of at least 512 × 512 pixels normally gives the cleanest large icon.

The live preview is designed to show the intended visual result, while the downloaded file is the item to inspect before publishing. Browser previews may be scaled to fit the page, so open the saved file at 100% when sharpness, alignment or small lettering matters. Avoid repeatedly editing and saving a lossy JPG when you still have the original available.

Practical uses

• Add a favicon to a new website.
• Prepare app icons for a web manifest.
• Replace an outdated low-resolution browser icon.

The same operation can be part of a longer workflow. A typical sequence is to crop unwanted areas first, perform the creative change, resize to the final pixel dimensions and compress only at the end. This avoids spending processing time on pixels that will later be removed and lets you judge compression on the actual final image.

Quality, accuracy and important limitations

Generation resizes the same artwork; it does not redesign tiny details. Fine text and thin lines may disappear at 16 pixels, so inspect the real-size preview.

Image quality depends strongly on the source. A high-resolution original normally leaves more room for cropping and resizing, while a small screenshot or previously compressed download may already contain blur, ringing or block artefacts. Saving a new file cannot restore information that is absent from the source. When accuracy matters, compare the finished file side by side with the original.

Private browser processing and device performance

The selected image is processed locally by JavaScript and browser canvas APIs. The editing operation does not require the file to be uploaded to the Image Online Free server. This is useful for ordinary personal and work images, but you should still control where downloaded copies are stored and who can access your device.

Large images require more memory because the browser must decode the compressed file into pixels. A modern camera photo may occupy far more memory than its file size suggests. If a phone tab becomes slow, close unused applications, process one large file at a time or resize a copy before applying the effect.

Common mistakes to avoid

• Replacing the only copy of the original with an edited or compressed result.
• Judging sharpness only from a small fitted preview instead of opening the download.
• Assuming a visual edit also meets a website's dimensions or maximum file-size rule.
• Ignoring transparency when moving between PNG, WebP and JPG.
• Applying several lossy saves when the complete workflow could start again from the original.

Continue with the right related tool

Choose the next operation according to the final requirement. Resize changes pixel dimensions, crop removes part of the frame, compression targets file weight and conversion changes the file format. These are separate tasks, even when a destination asks for several of them together.

FAQ

Does the ICO file contain real PNG images?

Yes. favicon.ico is built with embedded PNG data for 16×16, 32×32, and 48×48 pixels — compatible with modern browsers.

Where do I paste the HTML snippet?

Add the copied link elements inside the head section of your HTML, adjusting paths if you store icons in a subfolder.

Is my image uploaded?

No. Icon generation happens entirely in your browser.