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Other

Sound Effects Soundboard Maker

Create a custom soundboard by assigning audio URLs to labeled play buttons.

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Design

WCAG Color Contrast Checker

Ensure your design is accessible to all by checking color contrast ratios against official AA/AAA standards.

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Other

BBCode to HTML Converter

Convert forum-style BBCode tags like [b], [i], [url] into standard HTML markup.

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Text

HTML to Markdown Converter

Convert HTML markup back into clean readable Markdown syntax for static site generators.

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Finance

Inventory Turnover Ratio Tool

Measure how many times your business has sold and replaced its inventory over a given period.

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Text

Random String & List Scrambler

Randomize the order of characters in a string or items in a list using the Fisher-Yates shuffle algorithm.

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SEO

Robots.txt Rule Builder

Configure search engine crawler behavior with an automated robots.txt configuration engine.

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SEO

Advanced XML Sitemap Builder

Generate a multi-page XML sitemap with priority and frequency tags to optimize your crawl budget.

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Developer

XML Formatter & Beautifier

Paste minified or messy XML and get a cleanly indented human-readable version instantly.

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Other

Zero-Based Budgeting Tool

Calculate your net savings by balancing your monthly income against categorized expenses.

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SEO

Robots.txt Syntax Validator

Check your robots.txt file for common syntax errors that could block search engines from your site.

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SEO

JSON Beautifier & Validator

Convert minified API responses into readable, structured data formats instantly.

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200+ Free Browser-Based Tools

utilizetools

Fast, secure, interactive development, finance, design, and SEO micro-utilities — every calculation runs locally in your browser.

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200 total
T001

Professional Word Counter

Real-time character, word, and paragraph analysis for high-stakes copywriting.

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T002

Precision Mortgage Calculator

Determine monthly loan obligations with accuracy down to the cent.

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T003

JSON Syntax Beautifier

Transform messy, minified JSON strings into human-readable data structures.

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T004

CSS Text Shadow Designer

Visual designer for creating complex CSS text-shadow effects with code output.

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T005

CAC (Customer Acquisition Cost) Calculator

Essential unit economics tool to measure marketing efficiency.

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T006

Blurred Image Background Generator

Create high-end hero sections by generating CSS-ready blurred background layers from images.

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T007

CSS Text Shadow Generator

Craft professional-grade typography depth with real-time shadow rendering and code output.

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T008

Marketing ROI Calculator

Calculate return on marketing investment and compare campaign efficiency across channels.

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T009

Browser-Based Guitar Tuner

High-precision chromatic tuner using the Web Audio API for real-time instrument calibration.

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T010

Academic Word & Character Counter

Comprehensive text analysis including sentence counts, reading time, and character density.

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T011

Compound Interest Visualizer

Forecast the growth of your investments over time using the power of compounding interest.

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T012

JSON Beautifier & Validator

Convert minified API responses into readable, structured data formats instantly.

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T013

Robots.txt Rule Builder

Configure search engine crawler behavior with an automated robots.txt configuration engine.

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T014

Professional Text Case Converter

Instantly switch between UPPERCASE, lowercase, Sentence case, and Title Case for consistent document formatting.

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T015

Smart Find and Replace Tool

Batch update multiple instances of words or phrases within a text block using optional case-sensitive matching.

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T016

Duplicate Line & Entry Remover

Clean up messy lists, email databases, or code arrays by removing redundant, repeating lines.

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T017

Advanced Lorem Ipsum Generator

Generate custom lengths of professional placeholder text to fill design mockups and wireframes.

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T018

SEO URL Slug Generator

Transform any title or headline into a clean, search-engine-friendly URL slug.

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T019

Instant Text Reverser

Flip your text entirely backward for cryptographic puzzles or creative design projects.

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T020

Character Frequency Analyzer

Visualize the density of each letter and symbol within a block of text for linguistic analysis.

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T021

Morse Code Translator

Convert English text to International Morse Code and vice-versa for signaling and education.

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T022

Alphabetical Word Sorter

Organize lists of names, keywords, or items into a clean alphabetical or reverse-alphabetical order.

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T023

Secure Random String Generator

Generate high-entropy random strings for use as passwords, unique IDs, or testing data.

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T024

Excess Whitespace Remover

Clean up messy text by removing trailing spaces, double spaces, and redundant line breaks.

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T025

Markdown to HTML Converter

Transform simple Markdown syntax into clean, production-ready HTML code for web development.

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T026

HTML Entity Encoder/Decoder

Convert special characters into HTML entities to prevent code injection and display symbols correctly.

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T027

Regex Matcher & Tester

Test your regular expressions against sample text to ensure accurate data matching and validation.

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T028

Text to Binary Converter

Translate standard text into the binary (0s and 1s) format understood by computer hardware.

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T029

Sentence & Structure Counter

Analyze the readability of your writing by identifying sentence boundaries and average sentence length.

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T030

Column to Comma List Converter

Transform a vertical list of items into a compact, comma-separated string for use in code or spreadsheets.

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Calculate your minimum viable freelance hourly rate using a step-by-step framework covering target income, billable hour

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