Favicon Generator — Create Favicons Online
Generate favicons in all required sizes from one image.
Drop your JPG / PNG / WebP / BMP file hereTap to select a file
Supports JPG, PNG, WebP, BMP, up to 10MB
What to do next
Related tools
About Favicon Generator
Favicon Generator handles a focused step in the modern image editing and conversion workflow. Generate favicons in all required sizes from one image. The page loads with the upload area, controls and result panel all visible at once, so the path from "I have a file" to "I have the result" is one screen long.
Typical users of Favicon Generator include designers preparing marketing assets, developers preparing UI screenshots and illustrators packaging artwork. The thread connecting all of them is the same: a focused image editing and conversion task that fits cleanly into a browser tab and benefits from a tool with sensible defaults and minimal setup.
Favicon Generator runs the entire transformation inside your browser. The file is read by JavaScript running in the page, processed in-memory by the HTML5 Canvas API, and written back as a download. The browser is the runtime; the page is the interface. You can confirm what the tool does by opening the developer-tools Network tab during a run — the only requests are for the page's own static assets.
Technically, the work is done by the HTML5 Canvas API, loaded as part of the page. Inputs in JPG, PNG, WebP, and BMP format are recognised automatically and validated before the engine begins processing. Files up to 10 MB are supported per run; that ceiling keeps browser memory usage stable on a wide range of devices.
The right moment to reach for Favicon Generator is when you have a focused image editing and conversion job that fits inside a browser tab. Open the page, drop in the file or paste your input, choose the options that matter, and the tool returns the result.
Favicon Generator is intentionally narrow in what it does, which makes it easy to slot into a longer workflow. Take its output, hand it to whichever next tool fits the job, and Favicon Generator stays out of your way until the next time you need it.
The download is delivered as `favicon.zip` the moment processing completes — no email link, no "your result will be ready in 5 minutes" queue, no expiry timer. The file is generated in your browser and saved by your browser's normal download flow.
Constraints worth knowing about: inputs are capped at 10 MB to keep memory usage in a sensible range, one input is processed per run, and the tool must be loaded over HTTPS for the in-browser engine to work. These are properties of the architecture.
Some notes on the design of Favicon Generator. The page is intentionally narrow: one input, the controls relevant to the task, and one output. Adding unrelated features would make the common case slower for the majority of users, so the surface is held to what people actually use.
Some context on why Favicon Generator exists in this form: modern File APIs, high-performance JavaScript engines, and well-maintained open-source libraries now make it possible to perform image editing and conversion work entirely in the browser. Favicon Generator is built on top of that capability, which is why a single page can host the full pipeline.
Tips from users who reach for Favicon Generator regularly: process one input first to confirm the settings produce what you expect before committing to a batch; treat the page as the working surface and avoid leaving large jobs running in a backgrounded tab where the browser may throttle JavaScript; and if a particular file fails, check whether the source is intact by opening it in its native viewer — most "tool errors" are actually input errors.
For most failure modes, refreshing the page and re-running the job is enough — the engine has no persistent state to corrupt. If the same input fails twice in a row, the input itself is most likely the problem (a truncated file, an unexpected variant of the format, or a stream the engine does not recognise).
Favicon Generator produces deterministic output: the same input plus the same options always produces the same result. That predictability matters when the result has to match an upstream specification or be reproducible later.
Favicon Generator is one of many single-purpose tools in the catalog. Each is built around the same single-page model. Use this one, close the tab, and come back the next time you need the same job done. None of the tools require prior knowledge of the others — each page is self-contained.
How it works
- 1Reach the Favicon Generator page in your browser to begin.
- 2Add your JPG, PNG, WebP, and BMP input by dropping it onto the page or browsing for it.
- 3Adjust the options to match what you need. Sensible defaults cover the most common case, so you can usually skip this step.
- 4Click to start the job. The engine (the HTML5 Canvas API) processes the input in the page; you can watch the progress indicator until it completes.
- 5Grab the output named `favicon.zip` as soon as the run completes. You can also copy the result instead of downloading if the next tool in your workflow accepts pasted input.
- 6Run additional jobs as needed. The same controls and defaults apply on every run.
Common use cases
- Sharpen a slightly soft photo before sending it to print using Favicon Generator.
- Apply a quick filter for a social-media post.
- Generate a square thumbnail from a wide marketing photo.
- Convert a phone screenshot into a CMS-friendly format.
- Optimise a product photo so it loads quickly on a slow connection.
- Strip EXIF data from a photo before posting it publicly.
- Compose a mockup banner without bouncing between three different apps.
- Crop an image down to the section you actually want to share.
- Prepare a transparent logo for use over different backgrounds.
FAQ
What sizes are generated?
16×16, 32×32, and 48×48 pixels — the standard favicon sizes for browsers and bookmarks.
What format should I upload?
A square PNG or JPG at least 48×48 pixels. Larger images will be scaled down.
Do I get an ICO file?
Yes — a multi-size ICO file is included along with individual PNGs in a ZIP download.
How accessible is the Favicon Generator interface?
Favicon Generator uses native HTML controls wherever possible, which means keyboard navigation, focus rings, and screen-reader labels work the way the platform expects. The drop zone accepts files via the keyboard-accessible file picker as well as drag-and-drop, and result downloads use standard browser download flows. If you spot an accessibility gap, Favtoo treats it as a bug worth fixing.
Can I trust the output of Favicon Generator for important work?
Favicon Generator is built on the HTML5 Canvas API, which is the same class of engine used by professional image editing and conversion pipelines. For deterministic operations, the output is byte-identical to what an equivalent CLI run would produce; for operations involving a codec or a model, the result is well within the range of what comparable tools generate. If you have a specific reference output you need to match, run a small test job first to confirm the configuration produces what you expect.
Does Favicon Generator work on a phone or tablet?
Favicon Generator runs in any modern mobile browser — Safari, Chrome, Firefox and the in-app browsers in most messaging apps all support the underlying APIs. Performance depends on the device: a recent phone handles typical inputs nearly as fast as a laptop, while older devices may take a few seconds longer near the 10 MB ceiling. The interface lays out cleanly on small screens, so you do not need to pinch-zoom to see the controls.
Why use Favicon Generator instead of a paid online tool?
Desktop apps usually have more advanced features but require installation, maintenance and (often) a licence. Paid online tools are convenient but route your file through their servers and gate downloads behind accounts. Favicon Generator sits in between: free, instant, and private, but intentionally narrow in scope. For one-off jobs and the common image editing and conversion operations, it is usually the lowest-friction choice; for highly specialised work, a dedicated app is still the right answer.
Can I process multiple files at once with Favicon Generator?
Favicon Generator processes one input at a time by design — it keeps memory usage predictable on lower-end devices and makes results easier to verify. To handle a folder, run the tool once per file; the page stays loaded between runs and remembers your last-used settings, so the second run is essentially instant.
Is Favicon Generator really free?
Favicon Generator is free to use. The processing runs in your browser, which keeps the per-user cost low enough that the tool can be offered openly. The download is the same file the engine produced — you can use it for as many runs as you need.
Can I use Favicon Generator for commercial work?
Favicon Generator can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
Can I call Favicon Generator from a script?
Favicon Generator is a browser-only tool by design and does not expose a hosted API. The reason is the same as the privacy story: there is no Favtoo backend doing the work, so there is no service to call. If you need to script the same transformation, the underlying engine (the HTML5 Canvas API) is open-source and can be used directly from your own code.
Is Favicon Generator lossless?
Favicon Generator is built to preserve quality wherever the underlying image format allows it. Operations that are mathematically lossless (e.g. structural transformations, lossless re-encoding) round-trip with no perceptible change. Operations that involve a lossy codec inevitably introduce small artefacts at the byte level, but the defaults aim at the sweet spot where output looks or sounds the same to a normal viewer or listener while still being meaningfully smaller or faster than the input.