Axiomatic ToolsFree Fast Essential

PNG to ICO

Build a multi-resolution Windows .ico from PNGs.

  • Image
  • Free to use
  • Server processed
Use via API

Add your files

Set your options

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Run PNG to ICO

Processed on our servers. Uploaded over TLS and deleted an hour later — 24 hours if you are signed in.

Report a bug

Three steps

How to use PNG to ICO

  1. Step 01

    Pick your input

    Drag in one or more image/*, or drop a single ZIP — we'll unpack it for you.

  2. Step 02

    Configure & run

    Adjust the options (sizes) and click Run. We process the file on our own infrastructure — no third-party APIs in the path.

  3. Step 03

    Download the result

    A single image/x-icon is downloadable below the form.

Server-processed files are encrypted at rest with a per-tenant key and deleted an hour after upload — 24 hours if you are signed in. We do not use third-party processing APIs.

About png to ico

Build a Windows .ico file with multiple embedded sizes from a single PNG. It sits in the image shelf alongside 168 other image tools, needs no account, and keeps the same behaviour whether you open it here or call it through the REST API.

It takes any image you give it and gives back ICON. The work happens on our servers, and the upload is encrypted per file and deleted an hour later — 24 hours if you are signed in. The same operation is available programmatically at POST /v1/image/png-to-ico.

PNG to ICO questions

Where does PNG to ICO process my file?

On our own servers. This tool needs more than a browser tab can provide, so the file is uploaded over TLS, processed on our infrastructure — no third-party processing APIs are in the path — and both the input and the result are deleted within an hour.

What files can I use with PNG to ICO?

Any image file your browser can read. The limit is 100 MB per file.

Can I run PNG to ICO on several files at once?

Yes — select or drop as many as you need and they are handled together.

Do I need an account to use PNG to ICO?

No. PNG to ICO works without signing in, and that is not a trial — it is how the free tier works. An account only matters for things that need one to exist at all: larger server jobs against your quota, API keys, saved workflows and billing.

Can I run PNG to ICO from my own code?

Yes. Every tool on the site is reachable from the REST API with the same slug — `png-to-ico` — and the same options as this page, so anything you can do here you can automate against your own files.

Related tools

PNG to ICO Converter · Axiomatic Tools