What sizes does the ICO file contain?

Each ICO output contains six embedded PNG frames: 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels. Modern Windows and browsers select the best size automatically.

Why convert TIFF to ICO?

ICO is the standard format for Windows application icons and browser favicons. If you have a high-quality logo or image stored as TIFF that you want to use as an icon, converting to ICO is the right step.

Can I convert multiple TIFF files at once?

Yes — this tool supports batch conversion. Drop up to 25+ files at once, monitor per-file status, then download individually or as a single ZIP archive.

Does my data get uploaded to a server?

Never. All TIFF decoding and ICO encoding happens entirely in your browser using JavaScript. Your images never leave your device.

What software opens ICO files?

ICO files open natively in Windows Explorer (as icons), web browsers (as favicons), GIMP, Photoshop (with a plugin), and most professional image editors.

TIFF to ICO Converter

Convert TIFF images to ICO icon files locally in your browser. Each ICO contains six sizes (16–256 px) embedded as PNG frames. Batch convert, preview thumbnails, download individually or as a ZIP. No uploads, no account required.

🖼️

Drop TIFF files here

or Browse Files · Multiple files supported

Download as ZIP ZIP named with timestamp · Individual download always available per file

What This Tool Does

Converts TIFF images — common in photography, print workflows, and professional archiving — to ICO format entirely in your browser. Each ICO output contains six embedded PNG frames at standard icon sizes (16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels). No server upload, no account, no file size limits imposed by a backend.

Who This Is For

Web developers who need a favicon from a high-resolution TIFF logo or brand asset
Windows app developers who need an ICO file for application icons sourced from TIFF masters
Designers converting TIFF print assets or brand marks into multi-size icon files
Anyone who needs a quick ICO from a TIFF image without installing software

Example: Input: logo.tiff (high-res brand asset) → Output: logo.ico (multi-size icon, ready for favicon or Windows app use)

💡 Need a web-compatible image instead? Try TIFF to AVIF for next-gen web format. For a scalable vector, use TIFF to SVG. To optimize images for the web, convert to WebP.

Related Guides & Tutorials

Guide

TIFF to ICO: Complete Conversion Guide

What ICO format is, when to use it for favicons and Windows icons, and how to get the best results from TIFF source images.

Tutorial

How to Convert TIFF to ICO: Step-by-Step

A hands-on walkthrough for converting TIFF images to ICO in your browser — batch mode, multi-size output, ZIP download, and more.

Guide

HEIC to ICO Converter Guide

When and why to convert ICO icons from HEIC source images for favicons and app icons.

Tool

⬇ Image Resizer

How It Works

Drop your TIFF filesDrag one or more .tiff or .tif files onto the drop zone, or click Browse Files. Thumbnails generate immediately via the browser's built-in image decoder.

Click Convert to ICOThe browser decodes each TIFF to pixel data; the ICO encoder scales to six sizes and builds a standards-compliant ICO blob in memory.

Download your ICOsDownload files individually or check "Download as ZIP" for a single timestamped archive. App resets after export.

🔒 Privacy & Security

All decoding and encoding runs entirely in your browser. TIFF files are never sent to any server — they stay in your browser's memory from load to download. This is especially important for confidential print assets, client logos, or proprietary brand materials.

You Might Also Need

TIFF to AVIF → TIFF to SVG → HEIC to ICO → Image Resizer → Image to WebP →

TIFF vs ICO: Format Comparison

Property	TIFF	ICO
Primary use	Photography, print, archiving	Application icons, favicons
Typical dimensions	Any — often very large	16×16 to 256×256 px
Multi-size support	No (single image per file)	Yes — multiple frames in one file
Transparency (alpha)	Full alpha support	Full 32-bit RGBA transparency
Platform support	Professional tools, macOS, Linux	Windows, all browsers (favicon)
Best for	Print, archival, lossless editing	App icons, favicons, Windows UI
Internal format	Uncompressed or LZW/ZIP	PNG or BMP frames embedded

Frequently Asked Questions

What sizes does the output ICO contain?▼

Each ICO file contains six PNG frames: 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels. Windows and browsers automatically select the most appropriate size for the context.

Can I use the ICO as a favicon?▼

Yes — ICO is the original favicon format. Rename the output to favicon.ico and place it in your website root. All browsers will use it automatically, selecting the most appropriate embedded size.

Can I convert multiple files at once?▼

Yes — drop up to 25 or more files at once. The tool processes them sequentially, shows per-file status badges, and lets you download all ICOs individually or as a single timestamped ZIP.

Does the ICO support transparency?▼

Yes — the ICO frames are encoded as 32-bit RGBA PNG, which supports full alpha channel transparency. If your source TIFF has a transparent background, it will be preserved in the ICO output.

Is this tool free with no limits?▼

Yes — completely free with no file size limits, no per-conversion limits, and no account required. Processing happens in your browser so we never see your files.

What is the ZIP file named?▼

The ZIP is named dataconversioncenter_tiff_to_ico_YYYYMMDDHHMM.zip using your local time — for example dataconversioncenter_tiff_to_ico_202603061200.zip.

Which browsers support TIFF decoding?▼

All modern browsers are supported. The tool uses UTIF.js, a pure JavaScript TIFF decoder that works in Chrome, Firefox, Edge, and Safari — no native browser TIFF support required. Conversion happens entirely in your browser with no file uploads.