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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
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JSON Tools
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Base64 & Encoding
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Date & Time
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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

Image Merger

Turn any photo into a clean black and white image in seconds. Adjust the intensity from subtle desaturation to full merger and download as JPG, PNG, or WebP. Your image never leaves your device.

Drag and drop images here, or browse files
Supports JPG, PNG, WebP, GIF, BMP, ICO, AVIF, and TIFF — up to 50 MB each, up to 10 images

Technical Specifications

Review the supported formats, file limits, and browser engine details for the merger conversion tool.

Specification Details
Input Formats JPEG (JPG), PNG, WebP, GIF, BMP, ICO, AVIF, TIFF
Output Formats PNG, JPEG (JPG), WebP
Merger Method Canvas merging with exact pixel placement
Layout Options Horizontal / Vertical, gap 0–50px, up to 10 images
Maximum File Size 50 MB per image
Output Dimension Limit Up to 10,000 × 10,000 px
Processing Engine HTML5 Canvas API with drawImage merging
Processing Location 100% client-side — inside your browser memory
Transparency Support Preserved in PNG and WebP outputs. JPEG output fills transparent pixels with a selectable solid color.
Daily Usage Limit None — convert unlimited images for free

Features

◐

True Luminance Merger

Merges your photos side-by-side or stacked with live preview so you can see the combined result before downloading.

🎚️

Adjustable Intensity

Blend from full color to full black and white with a slider for subtle desaturation or classic monochrome looks.

🖼️

Format Choice

Export the result to WebP, PNG, or JPEG with adjustable quality for the smallest useful file size.

🔒

Local Device Privacy

Conversion runs entirely in your browser. Your photos are never uploaded, stored, or seen by any server.

How to Use the Image Merger Tool

  1. Drag and drop your image into the upload area, or click browse files to select one from your device.
  2. Move the Merger Intensity slider to set how strong the effect should be. Leave it at 100% for full black and white.
  3. Compare the Original and Merger previews to confirm the look you want.
  4. Choose an output format — WebP for small files, PNG for lossless images, or JPEG for broad compatibility.
  5. If exporting to JPEG, pick a background fill color to replace any transparent pixels.
  6. Review the size stats and click Download Image Merger to save the result.

Privacy and Client-Side Security

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

Many online merger tools ask you to upload your photo to their servers before processing. That creates privacy risk for personal or work images. TinyToolzz takes a different approach: the conversion happens entirely on your device with the HTML5 Canvas API.

The images are drawn side-by-side or stacked on a canvas with gaps and then encoded as a single file into the new file 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 image merger work?
The tool loads each image into memory and draws them onto a single larger canvas either side-by-side for horizontal or stacked for vertical. A gap and background color are applied between images, then the combined canvas is exported as a new file.
Are my photos uploaded to a server when I merge them?
No. The Image Merger runs entirely in your browser using the Canvas and FileReader APIs. Your images are read from your device into browser memory, merged locally, and are never transmitted, stored, or recorded on any remote server.
Can I choose horizontal or vertical layout?
Yes. Choose Horizontal to place images left to right in a row, or Vertical to stack them top to bottom in a column. The gap slider controls the space between images and the background color fills that space.
What output formats can I save the merged image as?
You can export as WebP, PNG, or JPEG, or keep the original format of the first image when it is JPG, PNG, or WebP. PNG preserves transparency, JPEG is most compatible, and WebP offers best compression. Other inputs are converted to PNG when you keep the original format.
Will merging change the quality of my photos?
No. Each photo is copied at its original resolution without scaling. Only the canvas size grows to fit all images plus gaps, so sharpness and colors stay exactly the same.
How many images can I merge and what if they have different sizes?
You can merge up to 10 images of up to 50 MB each. For horizontal layout the canvas height is the tallest image and shorter images are centered vertically; for vertical the width is the widest image and narrower images are centered horizontally. Transparent areas are handled with the chosen background color for JPEG output.

Related Image Tools

Sepia Image

Apply a warm vintage sepia tone to your photos.
Blur Image

Add a soft blur effect with adjustable strength.
Sharpen Image

Enhance image clarity and details with sharpening.
Crop Image

Crop photos to any area with ratio presets.
Image Compressor

Reduce image file size while keeping visual quality.
Flip Image

Mirror images horizontally or vertically instantly.