Why favicon privacy matters: no upload needed
A favicon is a tiny file with an unusually sensitive source. It is often drawn from a logo that has not launched yet: a rebrand nobody outside the company has seen, a client's new identity still under embargo, a side project you are not ready to announce, an internal tool that was never meant to be public. To turn that artwork into icons, the conventional deal offered by online generators is simple — upload the file, wait, download the result. The resizing is trivial. The upload is the interesting part, and it is the part worth asking questions about.
Once a file leaves your machine, you are relying on someone else's answers: how long the server keeps it, who can access it, whether it lands in logs, backups or a misconfigured storage bucket, and what happens if that service is breached or sold. None of that means every upload-based generator is careless. It means the risk exists for no technical reason, because nothing about making a favicon requires a server at all. Resizing an image, encoding a PNG or an ICO and zipping the results are all things a browser can do locally — so that is where EasyFaviconGenerator does them.
What “in your browser” actually means here
When you pick, drop or paste a picture on the home page, the file is read by JavaScript running in the page — the same way any web app reads a file you hand it — and turned into the editor's working image on your device. From there, every step of the job is local:
- Editing and previews. Backgrounds, margins, brightness and the light/dark tab and search-result previews are rendered on a canvas in your browser.
- Generation. The PNG files, the SVG favicon, the multi-size ICO, the Apple touch icon, the manifest icons,
site.webmanifestand the installation HTML are all produced by JavaScript modules delivered with the page, using the site's own PNG and ICO encoders — not a remote API. - The download. Individual files are saved straight from the browser, and the ZIP package is assembled locally with a vendored copy of JSZip.
- The logo maker, too. The logo maker draws your letters, emoji or symbol on a local canvas and hands it to the same editor, so a logo you invent here never leaves the machine either.
There is no account to create and nothing to sign in to, and the picture is not sent anywhere to be “processed in the cloud”. If you open your browser's developer tools and watch the Network tab while you choose a file and generate a package, you will see the page's own scripts and styles being loaded — and no request carrying your image. That is the most direct way to check a claim like this, and we would rather you checked than trusted a paragraph.
Where your work is stored: on your device
One local detail is worth explaining, because “nothing is uploaded” sometimes raises the follow-up question of how the “your favicon is ready” page knows what you made. To carry your picture and settings from the editor to that page, the editor saves them in your browser's IndexedDB — a small database that lives in your browser profile, on your device. It is not synced to us and we cannot read it. It exists so you can go back, change something and regenerate without starting over; you can erase it at any time by clearing the site's data in your browser, exactly like clearing any other site's local storage.
The only other thing the site stores locally is a single preference — whether you chose the light or dark theme — in localStorage. The tools do not use tracking or advertising cookies, and the pages load no third-party scripts, fonts or analytics: the font and the ZIP library are served from this site itself, so making a favicon does not quietly announce your visit to a string of outside services either.
The honest exceptions: when a server is involved
“The generator runs in your browser” would be an easy claim to stretch too far, so here are the places where this site does talk to a server, and why. The full version is in our privacy policy; this is the short, specific version.
Loading a picture from a URL
If you paste an image URL instead of choosing a file, a browser often cannot fetch that image itself because of cross-origin (CORS) rules. For cross-origin addresses, our server downloads the public image on your behalf and passes it straight back to your browser, where all the actual editing and generation then happen locally. That proxy exists only for images already published at a public address — it is rate-limited, refuses non-public addresses, caps the file at 6 MB and does not store the picture. It goes without saying, but we will say it anyway: if your logo is not already public somewhere, do not put it at a URL to use this feature — pick the file from your device instead, and it never travels at all.
The favicon checker
The favicon checker has to work the other way round by nature: you give it the address of a live website, our server fetches that site's page and icons, and analyses what it finds. The address you enter is therefore sent to our server, and the checked site sees our server's request rather than one from your browser. We do not keep the checker's results; for abuse prevention the server keeps a short-lived, hashed per-IP request counter for rate limiting. Note what is not involved here: the checker only ever fetches public URLs you point it at — it has nothing to do with pictures you generate from.
Forms, and ordinary server logs
If you deliberately send us something — a contact message, a newsletter subscription, a compatibility report — then of course that is sent to and stored by the server so we can answer or subscribe you, and the privacy policy covers how to have it deleted. And like any website, ours is delivered by a web server that may keep standard access logs (IP address, date, requested URL, browser) for security and troubleshooting, rotated regularly. Loading any page involves your browser asking a server for that page; the privacy point of this article is narrower and, we think, the one that matters: the artwork you turn into favicons is not part of what is sent.
Why this matters more than it used to
It is tempting to shrug: it is “just a logo”, and it will be public at launch anyway. Sometimes that is true, and then the stakes are genuinely low. But timing and context are exactly what make pre-launch material sensitive. A logo that appears somewhere before the announcement can reveal a rebrand, a new product name, an acquisition's new identity or a client's campaign while there is still time for competitors — or just the internet — to react to it. Favicons also get made for things that will never be public: internal dashboards, staging sites, client previews under NDA. For those, “it becomes public eventually” is not a reassurance at all.
There is a second, quieter benefit to processing locally: the tool keeps working on artwork you would hesitate to paste into an unfamiliar service for other reasons — a customer's logo they sent you in confidence, a trademark filing that has not been published, a personal project under a pen name. A privacy property you do not have to think about case by case (“is this file OK to upload?”) is worth more than one you have to keep re-deciding.
What to ask any generator you use
You do not have to take our architecture as the only acceptable one — but whatever tool you use, these questions separate a real privacy story from a reassuring homepage:
- Is the image uploaded, and can I see that in the Network tab? Pick a file and watch. An upload shows up as a request with your file in it; local processing does not.
- If it is uploaded, how long is it kept, and where does the policy actually say so? “We respect your privacy” is not a retention period.
- What else does the page load? Third-party scripts, fonts and analytics each learn that you visited, whatever happens to your file.
- Do I need an account for a resize? An account turns a one-off task into a stored identity attached to your uploads.
- What is stored on my device, and how do I clear it? Local storage like IndexedDB is normal and useful; you should still be told it is there.
The short version
Favicons are small, but their source artwork often is not public yet — so EasyFaviconGenerator treats it accordingly. Choose a file and everything that matters happens on your device: editing, resizing, ICO/PNG/SVG encoding, the manifest and the ZIP, with your work-in-progress kept only in your own browser's IndexedDB and no analytics or third-party scripts loaded along the way. The server steps in only where a feature cannot work without it — fetching an already-public image by URL, checking a live website you name, or receiving a form you choose to send — and each of those is spelled out in the privacy policy. Start with the logo nobody has seen yet: make your favicon without uploading it first.