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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
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PDF Tools
19 Tools
Text Tools
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Developer Tools
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SEO Tools
12 Tools
Calculators
10 Tools
Unit Converters
10 Tools
Security Tools
11 Tools
Color Tools
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Base64 & Encoding
8 Tools
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

Add Watermark

Add a text watermark to any image in seconds. Choose font, color, opacity and position, then download as JPG, PNG or WebP. Your image never leaves your device.

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

Technical Specifications

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

Specification Details
Input Formats JPEG (JPG), PNG, WebP, GIF, BMP, ICO, AVIF, TIFF
Output Formats PNG, JPEG (JPG), WebP
Watermark Type Text overlay with font, size, color, opacity and rotation
Position Options 9 presets — top / middle / bottom × left / center / right
Rotation Range -90° to 90°
Maximum File Size 50 MB per image
Output Dimension Limit Up to 10,000 × 10,000 px
Processing Engine HTML5 Canvas API with text compositing
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 — watermark unlimited images for free

Features

💧

Text Watermark

Add any short text such as your name, brand, or copyright notice with full control over font and style.

🎯

Nine Positions

Place the watermark exactly where you want it with a one-click 3×3 position grid plus rotation from -90° to 90°.

🎨

Style Control

Adjust font size from 10px to 120px, pick any color, set opacity from 10% to 100%, and add an outline for readability.

🔒

Local Device Privacy

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

How to Use the Add Watermark Tool

  1. Drag and drop your image into the upload area, or click browse files to select one from your device.
  2. Type your watermark text and choose a font, size, color and opacity. Enable outline if the text needs more contrast.
  3. Pick a position from the 3×3 grid and adjust rotation if needed.
  4. Compare the Original and Watermarked previews to confirm the placement.
  5. Choose an output format — WebP for small files, PNG for lossless images, or JPEG for broad compatibility.
  6. Review the size stats and click Download Watermarked Image to save the result.

Privacy and Client-Side Security

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

Many online watermark 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 watermark is drawn entirely on your device with the HTML5 Canvas API.

The image and text are composited in browser memory and encoded 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 add watermark tool work?
The tool draws your image onto an HTML5 Canvas and then draws your text on top at the chosen position. Font, size, color, opacity and rotation are applied with Canvas text APIs, and the combined result is exported as a new image file.
Are my photos uploaded to a server when I add a watermark?
No. The Add Watermark tool runs entirely in your browser using the Canvas and FileReader APIs. Your image is read from your device into browser memory, watermarked locally, and is never transmitted, stored, or recorded on any remote server.
Can I choose where the watermark appears?
Yes. Choose from nine positions including top-left, top-center, top-right, middle-left, center, middle-right, bottom-left, bottom-center and bottom-right. You can also rotate the watermark from -90 to 90 degrees and adjust its size and opacity.
What output formats can I save the watermarked image as?
You can keep the original format when it is JPG, PNG, or WebP, or export as WebP, PNG, or JPEG. PNG is lossless and preserves transparency, JPEG is the most compatible format for sharing, and WebP offers the best compression for photos. GIF, BMP, ICO, AVIF, TIFF, and SVG inputs are converted to PNG when you keep the original format.
Does adding a watermark change the image dimensions or quality?
No. The watermark is drawn on top of the original pixels without resizing. Width, height and sharpness stay the same, only the text layer is added. Quality is controlled by your chosen output format and quality slider.
What happens if my image has transparency?
Transparent pixels remain transparent when you export to PNG or WebP and the watermark is composited over them. If you export to JPEG, which cannot store transparency, you can choose a solid background fill color to replace transparent areas before the watermark is applied.

Related Image Tools

Image Compressor

Reduce image file size while keeping visual quality.
Image Resizer

Resize images to exact pixel dimensions.
Crop Image

Crop photos to any area with ratio presets.
Image Border Generator

Add solid color borders and frames to images.
Grayscale Image

Convert photos to clean black and white.
Blur Image

Add a soft blur effect with adjustable strength.