A site icon generator is useful only when its downloaded files match the formats and sizes your site needs. In a one-image test across ten result pages, three produced the complete package I checked for: an ICO file, an Apple touch PNG, and a web app manifest. Several other flows did not produce an inspectable result, and one download labeled as an ICO was actually a JPEG.
How the test was run
I used one transparent 512 × 512 PNG throughout the test. Its top-left pixel had alpha 0 and its center pixel had alpha 255. I followed each page’s default, no-sign-in workflow and inspected downloaded files locally when a download was available. The test ran on Windows 11 Pro with Chrome 155.0.8059.84 on October 18, 2026.
“Complete package” has a narrow meaning here: an ICO, an Apple touch PNG, and a manifest were all present in the downloaded output. This is a record of one input image and one test session, not a claim about every account, browser, or future version of these services.
| Result page | What the default run produced | What I could verify from the files |
|---|---|---|
| favicon.io | A seven-file ZIP | A three-layer ICO at 16, 32, and 48 px; PNGs at 16, 32, 180, 192, and 512 px; and a manifest. The ZIP was 53,325 bytes. The PNG alpha remained 0 at the tested corner; I did not inspect the ICO alpha. |
| Logomakerr.ai | A seven-file ZIP | The same listed PNG dimensions and ICO layer sizes as favicon.io in this sample. The PNG and ICO payload bytes matched favicon.io’s sample; the manifest differed. The ZIP was 53,325 bytes. |
| favicon-generator.org | A 27-file ZIP | 24 PNG files and one ICO. The ICO contained one 16 × 16 layer. The output also included manifest.json and browserconfig.xml. The tested PNG and ICO corner remained transparent. Apple outputs included nine explicitly sized files plus two without a size in the filename. |
| Shift4Shop | A 1,507-byte download named with an .ico extension | Its first bytes were FF D8 FF E0 and the file decoded as a 16 × 16 JPEG. The tested corner was opaque black (RGB 0, 0, 0; alpha 255), rather than transparent. The requested output was 16 × 16, so the issue was not a size mismatch. |
| favicon.cc | No inspected output | The PNG was accepted and the page showed “Keep dimensions” as the default. Clicking “Download Favicon” led to Chrome’s ERR_BLOCKED_BY_CLIENT; the page stated a 5 MB maximum file size. |
| RealFaviconGenerator | No output file | The upload control did not open a file chooser: “Timed out after 10000ms waiting for file chooser.” |
| IONOS | No output file | The upload attempt did not open a file chooser: “Timed out after 7000ms waiting for file chooser.” Its panel displayed “Unsupported file format” and stated a 2 MB maximum. |
| Canva | No same-image conversion output | The visible favicon flow routed to signup; the anonymous landing did not offer a PNG upload in this run. |
| Magnific | No same-image conversion output | The page offered text-to-icon generation and showed a signup prompt, rather than converting the test PNG. |
| LogoAI | No same-image conversion output | The default flow asked for a brand description. A separate sample-style upload would change the task into reference-design generation, so I did not treat it as the same conversion workflow. |
What the downloads changed about the comparison
The first surprise was that a filename is not enough to identify an output format. Shift4Shop’s file ended in .ico, but its JPEG signature and decoded image showed that the bytes were JPEG. In this sample, the transparent test corner also became opaque black. The requested output was still 16 × 16, so the issue was its format and alpha result, not its size.
The next difference was how much a “package” can vary. favicon.io’s sample had a three-layer ICO and several PNG sizes, while favicon-generator.org’s 27-file archive had a one-layer, 16 × 16 ICO alongside many separate PNGs. Counting files alone would hide that distinction. Check the ICO’s actual embedded layers if your app or platform needs multiple resolutions in one file.
Two services produced notably similar core image payloads from the same input: favicon.io and Logomakerr.ai had matching PNG and ICO payload bytes in this run, although their manifests were different. That is a sample-specific observation, not evidence that their services always produce identical files.
When a result was not a result
A blocked download and a file chooser timeout are different from a converted file that failed inspection. favicon.cc reached a browser-level download error; RealFaviconGenerator and IONOS did not yield a selected input through the tested upload controls. I therefore have no output dimensions or alpha-channel result to report for those attempts.
Canva, Magnific, and LogoAI were also not counted as failed converters. Their observed default flows did not perform the same-image PNG-to-icon conversion I was testing. Treating a different design workflow as a conversion result would make the comparison misleading.
Bottom line
Under the stated package check, favicon.io, Logomakerr.ai, and favicon-generator.org were the three result pages that supplied an ICO, Apple touch PNG, and manifest for inspection in this session. The one-layer ICO from the 27-file archive and the JPEG bytes behind an .ico filename show why the output should be inspected, rather than judged from a download label or ZIP file count.
For the complete per-service record and the original test notes, see the site icon generator benchmark.
Reading the table without overclaiming
The three-package count answers a specific question: which result pages supplied the three named file types in the inspected output? It does not rank image quality, ease of use, privacy, or long-term reliability. A ZIP with more files is not automatically more complete, and a site that did not yield a file in this session has no inspected artifact to compare.
Transparency also needs a precise scope. I checked the corner pixel of certain downloaded images, not every pixel or every format in every archive. For favicon.io, the PNG alpha check passed at that one pixel, while the ICO alpha was not checked. For favicon-generator.org, the tested PNG and ICO corner remained transparent. For Shift4Shop, decoding the mislabeled JPEG showed that its corner was opaque black. These are file-level observations from the specified sample, not a general compatibility test.
If you repeat this comparison with a different source image or a different default flow, keep those conditions visible beside the results. The purpose of the table is to make the inspected outputs auditable: what came down, what the bytes decoded as, and what could not be checked. That is more useful than treating a tool’s label as proof of its output.
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