SVG to ICO Converter: Free, Private, No Upload

Convert SVG files to ICO in your browser. Lossless output, batch up to 20 files at once, no upload, no account, no watermark. Your files never leave your device.

SVG to ICO
Batch up to 20 files
No upload, no account
Metadata stripped

1Add up to 20 images
2Pick from 18 formats
3Download or copy the code

Processed on your device. Your images are never uploaded, and metadata is stripped. How we keep it private

How do I convert SVG to ICO for free?

Drop your SVG files into the tool above, choose ICO as output, and download the result. Everything runs in your browser, so nothing is uploaded and there is no limit or watermark. It works on Windows, Mac, Linux, ChromeOS, iOS and Android — anywhere you have a modern browser.

Price: Free, no credits and no daily cap
Account required: No
File uploaded to server: No, processed locally in your browser
Batch limit: Up to 20 files at once
Input format: SVG
Output format: ICO
Best for: ICO workflows, lossless quality, editing, printing
Works on: Chrome, Edge, Firefox, Safari, iOS and Android browsers
Privacy: No upload, no tracking, metadata stripped
Output quality: Lossless, exact pixels

How to convert SVG to ICO

1
Drop your SVG files
Drag up to 20 SVG files onto the page or click to choose them. Everything runs in your browser.
2
ICO is preselected
Output is already set to ICO. Adjust quality, resize or batch if you want.
3
Download
Save each ICO, or download all of them together as a ZIP.

SVG to ICO: what changes and when it makes sense

SVG is an Scalable Vector Graphics format. It is best known for staying sharp at any size and being styleable and animatable with CSS and JavaScript. The main drawbacks are poor suitability for photographs, and large files when paths are very complex.

ICO is an Windows icon format. It is best known for packing several sizes (16, 32, 48, 256 pixels) into a single file. The main drawbacks are a maximum size of 256 by 256 pixels and little use outside icons.

SVG vs ICO at a glance

Property	SVG	ICO
Type	Vector image	Container format
Compression	XML text describing shapes and paths (often gzipped in transit)	A container holding one or more bitmaps, each stored as BMP or PNG data
Transparency	Full alpha channel with soft edges	Full alpha channel with soft edges
Animation	Yes	No
Colour depth	Resolution independent, with colour set by attributes and CSS	Up to 32-bit colour with an 8-bit alpha channel
Support	Renders in every browser and most design tools, but many upload forms and social platforms refuse it	Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly
History	SVG 1.0 was released by the W3C in September 2001. SVG 2 became a Candidate Recommendation in 2016 and is partially supported in modern browsers. Used on every major website for icons and logos.	Introduced by Microsoft with Windows 1.0 in 1985. The modern 32-bit alpha version became standard with Windows XP (2001). Windows Vista (2007) added PNG compression inside ICO for icons larger than 48x48.

What actually changes in this conversion

SVG is a vector format, so converting it to ICO means rasterising it. The result is a fixed grid of pixels at the size you choose. It will not scale cleanly afterwards.
Transparency is preserved, including soft edges.
SVG can hold animation, but ICO cannot, so the result is a single still frame.
ICO holds images up to 256 by 256 pixels. Larger sources are scaled down.
EXIF, GPS and camera data are stripped on every conversion. That is good for privacy, but you lose capture dates.

About SVG: history and technical details

SVG 1.0 was released by the W3C in September 2001. SVG 2 became a Candidate Recommendation in 2016 and is partially supported in modern browsers. Used on every major website for icons and logos.

Technical: XML-based. Root element is <svg> with viewBox defining coordinate space. Paths use <path d="..."> with move/line/curve commands. Supports gradients, filters, masks, clipping, and animation via SMIL or CSS. Can embed fonts and images.

Real-world size: A typical logo as SVG is 2-15 KB; the same logo as PNG at 500px is 20-80 KB. Icons saved as SVG are usually 80-95% smaller than PNG and sharp at any size.

Popular tools: Inkscape, Adobe Illustrator, Figma, Sketch, Affinity Designer, SVGOMG, SVGO, VS Code (with extensions).

Alternatives: PNG (fixed size, universal), WebP (lossless or lossy, alpha supported), PDF (for print), ICO (favicon only).

About ICO: what you get

Introduced by Microsoft with Windows 1.0 in 1985. The modern 32-bit alpha version became standard with Windows XP (2001). Windows Vista (2007) added PNG compression inside ICO for icons larger than 48x48.

Technical: Container holds 1-65535 images. Each entry has a 16-byte directory: width, height, colour count, planes, bit count, data size, data offset. Images are BMP (DIB) or PNG. Max dimension 256x256. Typical Windows icons use 16, 32, 48, 64, 128, 256.

Real-world size: A 6-size favicon.ico is typically 15-40 KB. A single 256x256 PNG favicon is 8-15 KB. Modern best practice uses separate files for 16, 32, 180 (Apple), 192, 512 (PWA).

Popular tools: IcoFX, GIMP, Adobe Photoshop (with plugin), ImageMagick, Favicon Generator, RealFaviconGenerator.

Alternatives: PNG (single size, widely accepted), SVG (sharp at any size), favicon.ico (still needed for legacy).

Browser and software compatibility

SVG: Renders in every browser and most design tools, but many upload forms and social platforms refuse it. ICO: Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly.

ICO is meant for favicons and Windows icons. It is not a general-purpose image format.

Why people move away from SVG

Many platforms, including most social networks, email clients and ad servers, will not accept SVG uploads.
Anything that needs fixed pixels, such as app store assets or link preview images, has to be rasterised.
SVG can contain scripts and external references, so many services block it for safety reasons.

Why people choose ICO

Browsers and Windows still look for favicon.ico at the root of a site by default.
One ICO file can carry several sizes, so tab icons, bookmarks and shortcuts all look sharp.
Windows shortcuts and application icons expect ICO.

Common mistakes with SVG

Uploading SVG to social media — most platforms silently reject it
Forgetting to optimise — unoptimised SVGs from Illustrator can be 100x larger than needed
Using SVG for photographs — file size explodes and quality is worse than JPG

Best practices for keeping quality

A vector has no native pixel size, so pick the output size you actually need. Scaling the result up later will blur it.
Start from a square image of at least 256 by 256 pixels and keep the design simple, since it will often be shown at 16 by 16.
Keep a PNG or SVG copy. Modern browsers accept link rel="icon" pointing at PNG or SVG.
Resize before converting if the image will be shown small. A 4000 pixel photo displayed at 800 pixels wastes bytes in any format.
Check the result at 100 percent zoom, especially around text, edges and gradients, before you replace any originals.
Keep your original files. Conversions to a lossy format cannot be undone.
When you convert a set of images, use the same quality setting for the whole batch. The converter handles up to 20 files at once.

SVG to ICO questions

Quick answers about privacy, quality, supported formats, file limits and how ICO works.

Why convert SVG to ICO?

ICO is lossless. It keeps every pixel exactly. It is the safe choice when you plan to edit, print or need exact pixel data.

Will converting SVG to ICO lose quality?

No. ICO is lossless, so nothing is thrown away.

Does ICO keep transparency?

Yes. ICO supports full transparency, so transparent areas in your original are kept.

Are my files uploaded?

Never. Everything runs in your browser. Your files never leave your device. Open DevTools Network tab while processing — you will see no upload request.

Can I convert many files at once?

Yes, up to 20 files at once. Download them individually or all together as a ZIP.

Does the converter strip metadata?

Yes. Browsers do not pass EXIF data through a canvas, so GPS, camera model and dates are removed on every conversion. That is good for privacy.

Is it free?

Yes. No credits, no daily cap, no account, no watermark. The practical limit is your device memory.

What sizes should a favicon.ico have?

At minimum 16x16, 32x32, and 48x48. Modern best practice is to include 16, 32, 48, 64, 128, and 256 pixel versions in one ICO file. Browsers pick the size they need.

Your files never leave your device

No upload, no account, no tracking. Everything happens in your browser using the Canvas API and WebAssembly. You can confirm this in your browser's DevTools Network tab while the tool runs — no request carries your file. See why ToolDeck is different.