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Instant, privacy-first browser utilities for image processing, PDF manipulation, developer tasks, text transformations, calculators, and converters.

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Find the right utility for your workflow across 14 specialized categories

Image Tools
31 Tools
PDF Tools
19 Tools
Text Tools
25 Tools
Developer Tools
20 Tools
SEO Tools
12 Tools
Calculators
10 Tools
Unit Converters
10 Tools
Security Tools
11 Tools
Color Tools
8 Tools
CSS Tools
7 Tools
JSON Tools
7 Tools
Base64 & Encoding
8 Tools
Date & Time
8 Tools
Miscellaneous
9 Tools

Most Popular Tools

The most frequently bookmarked tools by our users

Image Compressor

Compress JPG, PNG, and WebP images by up to 80% without losing quality.
Merge PDF

Combine multiple PDF files into one clean document instantly.
Word Counter

Count words, characters, sentences, paragraphs, and reading time in real time.
JSON Formatter

Format, validate, beautify, and minify raw JSON string inputs.
Password Generator

Generate secure, cryptographically random passwords with custom symbols.
QR Code Generator

Create custom QR codes for URLs, text, Wi-Fi, and contact details.
JPG to PDF

Convert JPG and PNG images into a clean single PDF file.
Case Converter

Convert text to UPPERCASE, lowercase, Title Case, camelCase, and snake_case.
Base64 Encoder

Encode text or images into standard Base64 format strings.
Percentage Calculator

Calculate percentage of values, percentage differences, and changes easily.
Color Picker

Pick colors from screen or image and export HEX, RGB, and HSL formats.
SERP Preview Tool

Simulate how your meta title and description appear in Google search results.

Why Choose TinyToolzz?

Built from the ground up for radical speed, privacy, and simplicity

Privacy First
Your files never leave your device. All processing occurs 100% locally in your web browser.
Lightning Fast
No server uploads or queues. Execution starts instantly and returns results in milliseconds.
Truly Free
No subscription tiers, daily task limits, or hidden paywalls. 100% free forever for everyone.
Works on Any Device
Fully optimized for smartphones, tablets, laptops, and desktop viewports.
150+ Tools
A complete utility suite for images, PDFs, developer tasks, text, calculators, and converters.
No Dark Patterns
No artificial processing delays, fake progress bars, or deceptive sign-up pop-ups.

Frequently Asked Questions

Everything you need to know about using TinyToolzz

What is TinyToolzz?
TinyToolzz is a browser-based suite of online utilities for images, PDFs, text, developer code, calculators, and unit converters. Every tool runs directly inside your web browser.
Are all tools on TinyToolzz free?
Yes. All tools on TinyToolzz are 100% free with no premium plans, hidden subscriptions, or daily limits.
Do I need to create an account?
No. You never need to sign up, provide an email address, or log in to use any tool on TinyToolzz.
Is my data safe? Do files get uploaded to a server?
Your files and text inputs are completely private. All processing is performed client-side using JavaScript and Web APIs. Zero file data is ever transmitted to external servers.
Do the tools work on mobile devices?
Yes! TinyToolzz is designed mobile-first and works seamlessly across iOS Safari, Android Chrome, mobile browsers, tablets, and desktop computers.

Bookmark TinyToolzz for Later

Hundreds of browser-based online tools, always accessible, fast, and completely free.

Explore All Tools

ICO Generator

Generate a multi-size favicon.ico from any image in seconds. Choose 16 to 256 px sizes with transparent background and download instantly. Your image never leaves your device.

Drag and drop your image here, or browse files
Supports JPG, PNG, WebP, GIF, BMP, ICO, AVIF, TIFF, SVG — up to 50 MB

Technical Specifications

Review the supported formats, file limits, and browser engine details for the ICO generator.

Specification Details
Input Formats JPEG (JPG), PNG, WebP, GIF, BMP, ICO, AVIF, TIFF, SVG
Output Format ICO (Windows Icon) with PNG-compressed images
Available Sizes 16×16, 32×32, 48×48, 64×64, 128×128, 256×256
Default Selection 16, 32, 48 px — covers tabs, bookmarks and shortcuts
Scaling Method Centered contain with transparent padding, no cropping
Maximum File Size 50 MB per image
Processing Engine HTML5 Canvas API with ICO header packing (32-bit PNG)
Processing Location 100% client-side — inside your browser memory
Transparency Support Full alpha channel preserved via 32-bit PNG inside ICO
Daily Usage Limit None — generate unlimited ICO files for free

Features

🎯

Multi-Size ICO

Pack up to six sizes from 16 to 256 px into one favicon.ico so every browser and OS picks the sharp version.

🖼️

Transparent Background

Images are centered with transparent padding using 32-bit PNG. Non-square photos are not stretched or cropped.

⚡

Instant Generation

ICO is built in your browser from canvas PNGs — no upload, no queue, download is ready in milliseconds.

🔒

Local Device Privacy

Your source image is never uploaded. The entire ICO file is assembled in browser memory and discarded on reset.

How to Use the ICO Generator

  1. Drag and drop your image into the upload area, or click browse files to select one from your device.
  2. Toggle the icon sizes you need — 16, 32, 48 is recommended for favicons.
  3. Compare the Original and ICO Preview and check the size list.
  4. Review the ICO file size in the stats grid.
  5. Click Download favicon.ico to save the file and place it at your site root.

Privacy and Client-Side Security

Privacy Guarantee: All ICO packing and PNG encoding occurs locally inside your browser. Your files and data are never transmitted, stored, or recorded on remote servers.

Many online favicon tools ask you to upload your logo to their servers before processing. That creates privacy risk for brand assets. TinyToolzz takes a different approach: the ICO is assembled entirely on your device with the HTML5 Canvas API.

Each size is rendered to a transparent canvas, exported as a PNG, and packed into the ICO binary using the standard ICO header — all without a single network request carrying image data. When you leave the page or click Reset, the image data is released from memory. Nothing is stored, logged, or shared.

Frequently Asked Questions

How does the ICO generator work?
The tool draws your image onto a Canvas for each selected size (16 to 256 px), centers and scales it with a transparent background, exports each as a PNG, and packs them into a single ICO file with the standard ICO header and directory entries. The result is a valid favicon.ico that browsers read natively.
Are my images uploaded to a server when I generate an ICO?
No. The ICO Generator runs entirely in your browser using the Canvas, Blob and FileReader APIs. Your image is read from your device into browser memory, converted locally, and is never transmitted, stored, or recorded on any remote server.
Which sizes should I include in my favicon.ico?
A good default is 16, 32 and 48 px which covers browser tabs, bookmarks and Windows shortcuts. Add 64, 128 or 256 px if you need high-DPI displays or Windows taskbar icons. The tool lets you pick any combination from 16×16 to 256×256.
Does the ICO keep transparency?
Yes. Each size is exported as a 32-bit PNG with an alpha channel and stored inside the ICO. Transparent pixels stay transparent in browsers and operating systems that support PNG-based ICO files, which includes all modern browsers.
Can I use any image format as the source?
Yes. You can upload JPG, PNG, WebP, GIF, BMP, ICO, AVIF, TIFF or SVG. The image is scaled to fit each square icon with centered padding, so non-square photos are not cropped or stretched and the aspect ratio is preserved.
What are the file size and dimension limits?
Files up to 50 MB are supported. There is no daily limit and the tool is free with no sign-up. Each icon size is capped at 256×256, which is the maximum defined by the ICO format.

Related Image Tools

SVG Converter

Convert images between SVG and raster formats.
Image to Base64

Encode images as Base64 data URIs for embedding.
Image Resizer

Resize images to exact pixel dimensions.
Image Compressor

Reduce image file size while keeping visual quality.
Crop Image

Crop photos to any area with ratio presets.
Base64 to Image

Decode Base64 strings back to downloadable images.