Image to ICO Converter

Make a Windows or website favicon from any image — JPG, PNG, WebP, HEIC or BMP — in one drop. Free in your browser — no sign-up, no watermarks.

Drop your Image files here

or click to browse — Select multiple files for batch conversion

jpgjpegjfifpngwebpgifbmpavifheicheifsvg

⚡ Instant — conversion starts the moment you add files. No sign-up, no watermarks. Why FileHugger

🔍 How your file is processed

Runs: In your browser on this page
Engine: Your browser's own image decoder and canvas encoders (AVIF included); HEIC decodes via a bundled JavaScript decoder (Emscripten-compiled libheif); GIF, BMP and ICO are written by our own encoders
Max input: 512 MB per file
Your file: Processed in this browser tab — the file is not uploaded. Converted results are kept in this browser's local storage for up to two hours so their matching download page can show them; expired results are removed on the next site visit. Nothing is stored on our servers.
Good to know: Converting to JPG or lossy WebP applies the quality level you choose. JPG and BMP have no transparency, and our GIF encoder does not carry transparency either — transparent areas are flattened to the background for all three. Animated GIF input is read as its first frame.

Full security & file-privacy details →

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How to convert Image to ICO

Click Choose files (or drag & drop) and select one or more Image files. You can also paste an image from your clipboard.
Pick the icon size — 256 × 256 covers modern favicons; 32 × 32 matches classic favicon.ico usage.
Press Convert to ICO. Each file is converted with a live progress indicator.
Open the download page to save your files individually or grab everything as a single ZIP.

Why convert Image to ICO?

A favicon or Windows application icon has to be in ICO format, but design tools export PNG, JPG, WebP or HEIC. Drop whatever you have and get a ready-to-use ICO at the size you choose — 256×256 covers modern favicons, 32×32 the classic favicon.ico. You can iterate in seconds until the icon looks right at every size.

What this tool preserves — and what it changes

✓ Preserved

Transparency from PNG, WebP, GIF, AVIF and SVG sources — carried into the 32-bit PNG entry inside the ICO
Nothing is stretched: every input is contain-fitted to the square icon canvas, with transparent padding filling the short sides

↺ Changed

Whatever you drop — an iPhone HEIC, a WebP download, an SVG logo — is decoded, squared and resized to the one icon size you choose (16–256 px, default 256)
One icon size per file: for a favicon set at several sizes, run the tool once per size

Known limits & edge cases

SVG logos are the strongest source here: the icon is rasterized fresh from the vector shapes (never below ~512 px) before the final resize, so edges stay clean
Photos at 16×16 lose nearly all detail — that is the resize, not the container format

Engine: Your browser's own image decoder and canvas encoders (AVIF included); HEIC decodes via a bundled JavaScript decoder (Emscripten-compiled libheif); GIF, BMP and ICO are written by our own encoders. These statements describe the engine as shipped on 2026-10-02 — behaviour changes are recorded in the changelog.

About the formats

What is a JPG file?

JPG is the most widely used photo format on the web. It uses lossy compression that keeps file sizes small while preserving the detail that matters in photographs. Nearly every device, browser, app and website accepts JPG, which makes it the safest choice for sharing and uploading pictures. It does not support transparency or animation.

What is an ICO file?

ICO is the icon container format used by Windows and by websites for favicons — the little icon shown in the browser tab. An ICO file can hold the same image at several sizes (16×16, 32×32, 48×48 and up to 256×256). Browsers and Windows expect this exact format, so PNG or JPG logos usually need to be converted to ICO before they can be used as a favicon or application icon.

Any picture, one icon file

Whether the source is a PNG logo, a JPG photo, a WebP saved from the web or an SVG mark, this tool turns it into a working Windows ICO — the format browsers look for as a favicon and Windows uses for shortcuts, folders and applications. It’s the catch-all version of the PNG→ICO and JPG→ICO tools for when your source material is anything else.

Icon craft in three rules: start square (crop first — 1:1 preset in the crop tool), prefer transparent sources so the icon sits cleanly on any background, and keep the design bold, because at 32 pixels fine detail dissolves. Pick 256×256 for modern favicons and high-DPI displays, 32×32 for classic favicon.ico slots and legacy software dialogs. The originals on your disk are never modified — experiment freely.

Frequently asked questions

Is this Image to ICO converter free?

Yes — completely free, with no sign-up, no watermarks and no daily quota. Processing happens in this browser, so the practical limit is the memory available on your device.

Can I convert multiple Image files at once?

Yes. Select or drop as many files as you like — each one is converted in sequence with its own progress status, and you can download the results individually or all together as a ZIP archive.

Will I lose quality converting Image to ICO?

No — ICO is a lossless format, so the converted file reproduces the decoded image pixel for pixel. No additional compression artifacts are introduced by the conversion.

What size should a favicon be?

Modern browsers happily scale a single 256×256 ICO down, and that is the safest choice today. If you need maximum compatibility with very old browsers, generate an additional 32×32 version.