Favicon Generator Online — Free & Private
Turn one image into a full set of favicon sizes. Free, private, and processed entirely in your browser — no upload, no account, no file ever leaves your device.
How to use Favicon Generator
Turn one image into a full set of favicon sizes. Everything runs in this tab — nothing is uploaded for the core job.
- Add your PDF — Drop a file onto the Favicon Generator tool or click to browse — it's read directly into your browser's memory.
- Choose your options — Set any options Favicon Generator offers.
- Download the result — Get your finished file straight away \u{2014} it was never sent to a server.
Privacy proof for Favicon Generator
This tool processes files in your browser. Open DevTools → Network while you run it: your document is not uploaded. After one online visit, many tools keep working with Airplane Mode on (libraries cached locally).
Popular tools
The highest-demand tools with full options — browse by category below for the rest.
Star any tool — it appears under Favorites on this device.
How this actually works
Each tool runs entirely with JavaScript already loaded in this page — PDF tools via pdf-lib and pdf.js, image tools via the browser's native Canvas API, and everything else with plain JavaScript. Your files or input are read into browser memory, processed, and handed back as a download or copyable result. This page itself is served by a small Laravel route; Laravel never sees your files either. The only backend in use is Supabase, and only for two optional things: signing in with a magic link, and — only if you're signed in — a log of which tool you ran and when. Honest limits worth knowing: Compress PDF flattens each page to a re-encoded image (great for scans, not ideal if you need selectable text after); HEIC conversion uses a small on-demand converter when the browser cannot decode HEIC natively (Safari often works without it); Fill PDF Form is best-effort for simple AcroForm fields, not a full Adobe Forms replacement; and Word/Excel/PowerPoint ⇄ PDF genuinely needs a server-side engine, so it isn't included — this build only ships tools that can honestly run client-side.
Questions people actually ask
What sizes does it generate?
16×16, 32×32, 48×48, and 64×64 (classic favicon sizes), 180×180 (Apple touch icon), and 192×192 and 512×512 (the two sizes a PWA manifest typically needs) — 7 files total.
What format are the files?
PNG for every size — the modern standard that every browser and OS supports, rather than the legacy multi-resolution .ico format.
Do I need to rename the files after downloading?
They're already named by size (e.g. favicon-32x32.png), matching what most site templates and CMS favicon upload fields expect.
What image should I start with?
A square image works best — since every output size is also square, a non-square source gets stretched to fit rather than cropped.
Does it generate the actual favicon.ico file?
No — only PNGs. Nearly all modern browsers accept a PNG favicon directly (via <link rel="icon" type="image/png">); a legacy .ico is rarely required anymore.
Can I use a photo, or does it need to be a logo?
Either works technically, but a simple logo or icon reads far more clearly than a detailed photo once shrunk to 16×16 — worth keeping in mind for the smallest sizes specifically.
How do I use these on my own site?
Upload the PNGs to your site and link them with <link rel="icon"> tags for the browser sizes and reference the 192/512 ones from your manifest.json for PWA support.
Is my image uploaded anywhere?
No — every size is generated entirely in your browser using the Canvas API; nothing is uploaded.
Is this really free, and is there a file size limit?
Yes — no account, no paywall. Since processing happens in your browser's memory rather than uploading anywhere, the practical limit is your device's available RAM, not a server quota. Very large files (500+ pages) may run slower, especially for Compress and PDF→JPG.
Does anything about my file get sent anywhere?
No. Every tool runs with pdf-lib/pdf.js loaded in this page; your file is read into browser memory and never leaves it. The only network call this app makes for your account is Supabase auth — and that only stores which tool you ran and when, never file content.
Why isn't Word/Excel/PowerPoint → PDF included?
Converting Office formats accurately needs a real rendering engine (what Word or LibreOffice use internally) — no browser library does this reliably. Rather than ship a broken version, it's left out.
Does TechDriven Tools have OCR (text recognition)?
Yes — OCR PDF recognizes text in scanned or photographed pages using Tesseract.js, running entirely on your device, and gives you a searchable PDF or a plain text file. Nothing is uploaded for this either.
Can I use this without an internet connection?
Once the page and its libraries have loaded once, yes — the tools themselves need no network access. Signing in and viewing history do require a connection, since those talk to Supabase.
What happens to the "history" if I sign in?
Only a row per tool run — the tool's name and a timestamp. No filename, no file content, ever. You can see the full list any time via the History button.
Are the non-PDF utilities (password generator, JSON formatter, etc.) private too?
Yes — same rule as the PDF tools. Word Counter, Case Converter, Password Generator, UUID Generator, Base64, Hash Generator, JSON Formatter and JWT Decoder all run with plain JavaScript already loaded in this page; nothing you type or paste is sent anywhere.
Favicon Generator, in depth
Turn one image into a full set of favicon sizes, ready to drop into any website.
Features
All Standard Sizes
16×16, 32×32, 48×48, 64×64, 180×180, 192×192, and 512×512.
PWA-Ready
Includes the 192 and 512 sizes a PWA manifest typically needs.
Apple Touch Icon
Generates the 180×180 size iOS home-screen icons expect.
Zipped Download
All 7 files download together as one archive.
Why use Favicon Generator
- Add a proper favicon to a new website in every size browsers actually request.
- Update an existing site's icon without manually resizing 7 separate files.
- Prepare icons for a PWA manifest in the sizes it requires.
- Ensure a crisp icon across desktop tabs, mobile home screens, and bookmarks alike.
How it works
Your source image is redrawn onto a canvas at each of the 7 standard sizes and exported as a set of PNG files, bundled into one zip download — the same set of sizes real websites reference via <link rel="icon"> tags and PWA manifests.
Using the files on your site
Upload the PNGs to your site and link the browser-facing sizes with <link rel="icon"> tags, and reference the 192/512 sizes from your own manifest.json if your site supports installing as a PWA. For best results, start from a square source image with a simple, high-contrast design — fine detail tends to disappear at 16×16.
Why people search for Favicon Generator
Turn one image into a full set of favicon sizes. For teams, share the link instead of emailing binaries of desktop installers — everyone gets the same Favicon Generator behavior in a modern browser.
Favicon Generator sits in our Image Tools group. The page is built so you can finish the job without creating an account, installing a desktop pack, or sending the payload to an unknown converter API.
Who Favicon Generator is for
- You want a second opinion after another converter produced a weird output.
- You need a result now and do not want another account wall.
- The file or text is sensitive enough that uploading feels wrong.
- A desktop suite is overkill for a one-page or one-photo job.
Recommended workflow
Start from the highest-quality source → apply one transform → compare before/after → export the format your destination actually needs.
- Open Favicon Generator (also available from category hubs and ⌘K).
- Use the labeled fields or dropzone — options match what Favicon Generator actually does.
- Run the tool and wait for local progress to finish.
- Download or copy the result, then verify on the device where you will share it.
Tips that improve results
- Change one setting at a time when you are comparing quality or layout.
- Keep the original until stakeholders accept the download.
- Rename the output with date + purpose before you attach it to email.
- On phones, plug in power for large PDFs, videos, or spreadsheets.
- Prefer UTF-8 text for developer converters; weird encodings cause most “broken” results.
- Start with a non-sensitive sample so you learn the options before the real file.
Common mistakes with Favicon Generator
- Expecting Favicon Generator to replace a full desktop suite for every edge-case format.
- Skipping a sample check and discovering a bad export after the original was deleted.
- Chaining many lossy image/PDF steps when one careful pass would have been enough.
- Using a public computer without clearing downloads afterward.
Privacy model
Processing for Favicon Generator is designed to stay in the browser. Laravel serves the page; it does not receive your file bytes for conversion. Optional Supabase auth only stores which tool you ran and when — never filenames or contents.
Related tools
FAQ — Favicon Generator
Is Favicon Generator free to use?
Yes. Favicon Generator on TechDriven Tools is free — no account, no watermark, and no paywall for the core workflow.
Does Favicon Generator upload my file or text?
No for processing. Favicon Generator runs in your browser tab. Optional sign-in never stores file contents — only tool names and timestamps if you enable history.
When should I use Favicon Generator?
Use Favicon Generator for Image Tools jobs where privacy and speed matter: quick one-offs, sensitive inputs, or checking another app’s result without another upload site.
Will Favicon Generator work on my phone?
Yes in a modern mobile browser. Large inputs can take longer because your device does the work locally.
What are the limits of Favicon Generator?
There is no server quota from us. Limits are your device memory, battery, and formats the browser can decode. Favicon Generator will not pretend to support server-only Office or cloud-AI pipelines.
How is Favicon Generator different from upload-based sites?
Upload converters send your content to someone else’s server. Favicon Generator keeps the transform on-device whenever the format allows, which is the safer default for confidential documents, photos, tokens, and configs.
Bottom line
If you need Favicon Generator done quickly and privately, start at /favicon-generator, run it once on a sample, then process the real input. That is how TechDriven Tools stays competitive: honest capabilities, labeled UI, and content that matches what the tool actually ships.
From our blog: How to Generate Favicons From One Image