Why this tool is useful
Prepare the common website and installable-app icon files in one repeatable export, including the markup needed to connect them to an HTML document.
Local File Tools · runs locally
Private Favicon and PWA Icon Pack Generator
Build a ready-to-publish ZIP with favicon.ico, browser PNG icons, an Apple touch icon, PWA icons, a web manifest and copyable link markup using only local browser processing.
Ready. Your working data stays in this browser.
Files and capture streams stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy. No server copy is created, stored or left to delete. The file picker is cleared when processing starts, and disposable worker memory is destroyed after completion or cancellation. Preview and generated-output memory is released when you clear the tool or leave the page.
How it works
After local image validation, the browser renders every required resolution, assembles a multi-entry ICO, generates a bounded manifest and packages only fresh outputs with pinned JSZip.
Practical example
Open a square PNG brand mark, enter the site and short names, then download a ZIP that contains favicon files, 180/192/512 icons, site.webmanifest and favicon-links.html.
Validation
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Privacy boundary
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Result passport
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.