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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
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.

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Code Diff Checker

Compare two text or source code files online free. Highlight additions, deletions, and line modifications with side-by-side split and unified inline views.

+0 / -0 | 100% Sim

Technical Specifications

Diff Engine LCS Line-by-Line Difference Comparison Algorithm
Supported View Modes Unified Inline View & Side-by-Side Split View
File Export Format Standard Patch File (.diff / .patch)
Execution Engine 100% Client-Side Browser Memory Processing (Zero Remote Servers)

How to Use the Code Diff Checker

  1. Paste the original code into the Original Code input box.
  2. Paste the modified code into the Modified Code input box.
  3. Click Compare Code Diff (or click Load Sample to immediately load example code).
  4. Review highlighted green additions (`+`), red deletions (`-`), and similarity percentages.
  5. Click Copy Diff or Download .diff to export the patch file.

Key Features

🔍
Line-by-Line Diff Engine
Accurately identifies exact line additions, deletions, and modifications across code versions.
👁️
Dual View Modes
Switch seamlessly between Side-by-Side Split View and Unified Inline patch format.
⚙️
Whitespace & Case Filters
Ignore minor indentation and case differences to highlight true logical code changes.
🔒
100% Client-Side Privacy
All code comparisons take place in your browser memory. Your source code is never uploaded to any server.
🔒 100% Private & Client-Side Execution

Your source code comparisons run entirely inside your browser using client-side JavaScript. No text, code snippets, or patch files are ever sent to, recorded by, or stored on external servers.

Frequently Asked Questions

What is a Code Diff Checker?
A Code Diff Checker compares two versions of text or source code files line by line, visually highlighting additions, deletions, and modified lines in green and red.
What is the difference between Split and Unified view?
Split view displays the original text on the left and the modified text on the right. Unified view merges both into a single continuous stream with + and - prefixes.
Can I ignore spaces and tabs when comparing code?
Yes! You can toggle the 'Ignore Whitespace' checkbox to ignore indentation, trailing spaces, and blank lines so only meaningful code changes are highlighted.
How is the similarity percentage calculated?
Similarity is calculated as the ratio of unchanged matching lines relative to the total number of lines in both input files.
Can I download the diff output as a file?
Yes. You can copy the unified diff text directly or click 'Download .diff' to save a standard patch file compatible with Git tools.
Is my source code uploaded or stored anywhere?
No. The diff algorithm executes 100% locally inside your web browser using JavaScript. Your code and text never leave your computer.

Related Developer Tools

JSON Formatter
Beautify and format complex JSON code.
JS Formatter
Format JavaScript code with clean indentation.
Regex Tester
Test and debug regular expression patterns.
Lorem API Mock Generator
Generate synthetic mock REST API JSON payloads.