Free Online Tools

Professional calculators, converters, and generators. All free to use, no registration required. Instantly accessible in your browser.

608 tools across 4 categories • Always free • Privacy-focused

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Featured Tools

Why Choose Our Tools?

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Instant Results

No waiting, no loading. Get results immediately as you type.

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Privacy First

All calculations happen in your browser. Your data never leaves your device.

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Mobile Friendly

Works perfectly on phones, tablets, and desktop computers.

Latest Tools - Page 3

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Border Radius Visualizer

Interactively set and preview CSS border-radius values for each corner with live visual feedback

Break Reminder - Auto-notify for stretch/eye breaks

Set customizable break timers for stretch breaks, eye rest, and wellness reminders with browser notifications

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Brick & Block Calculator

Calculate exact number of bricks or blocks needed for walls plus mortar requirements based on wall dimensions

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Brightness & Contrast Adjuster

Fine-tune image brightness and contrast levels with real-time preview and precise control

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Brush Stroke Randomizer

Generate unique abstract art with randomized brush strokes and color harmonies

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Budget Calculator

Calculate and track your personal budget with income, expenses, and savings analysis

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Budget Planner

Create and manage your personal budget with our comprehensive Budget Planner tool. Track income, expenses, and savings goals.

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Business Card Generator

Create professional business cards instantly with our Business Card Generator tool. Design, customize, and download high-quality business cards.

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CIDR Merger (Supernet) Tool

Calculate the smallest supernet set from multiple CIDR blocks with step-by-step binary explanation

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CSS Box-Shadow Generator

Interactive sliders to create and preview CSS box-shadow styles with live preview and multiple output formats

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CSS Filter Tester

Adjust blur, brightness, hue-rotate and other CSS filters on an image with real-time preview

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CSS Grid Generator

Professional CSS Grid layout generator with customizable columns, rows, gaps, and responsive breakpoints

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CSS Minifier

Professional CSS minifier and optimizer with advanced compression algorithms

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CSS Selector Auto-Generator

Professional CSS selector generator and reverse-engineering tool that analyzes HTML structure and automatically generates optimal CSS selectors. Features smart element targeting, specificity optimization, and multi-selector generation for complex web scraping and automation tasks.

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CSV Column Extractor

Extract specific columns from CSV data by number with intelligent parsing and formatting

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CSV Converter

Convert CSV to JSON, XML, HTML tables and more with advanced parsing

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CSV Row Deduplicator (by Column)

Remove duplicate rows by comparing key columns with intelligent deduplication strategies and clean output

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CSV Splitter (Chunker)

Split large CSV files into smaller chunks with optional header retention for easier processing

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CTR Calculator

Calculate click-through rate (CTR), cost per click (CPC), conversion rate, and other digital marketing metrics with industry benchmarks

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Calendar Page Creator

Generate printable monthly calendars with editable events and customizable layouts

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Calligraphy Flourish Helper

Generate beautiful calligraphy flourishes and decorative elements with customizable styles, sizes, and complexity for practice and inspiration

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Calligraphy Practice Grid Generator

Generate printable calligraphy practice grids and lettering worksheets with customizable guidelines and spacing

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Callout Bubble Creator

Create comic-style speech bubbles and callout bubbles with custom text, colors, and styles for comics, presentations, and graphics

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Canonical Tag Tester

Paste HTML to detect canonical tag issues, loops, and SEO problems with instant fix recommendations

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Car Seat Age Calculator

Calculate the correct car seat type for your child based on age and weight following AAP and NHTSA safety guidelines

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Case Converter

Convert text between different case formats including uppercase, lowercase, camelCase, snake_case, kebab-case and more

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Case Shuffler Tool

Randomizes text case for testing purposes, development, and creating mixed-case text variations

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Case Specific Word Counter

Count occurrences of specific words in text with case-sensitive options, partial matching, and detailed statistics. Perfect for content analysis, keyword research, and text processing.

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Certificate Generator

Create professional certificates with custom titles, recipients, dates, decorative borders and elegant text styling for awards, achievements and recognition

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Character Counter

Count characters, words, lines, and paragraphs in text with detailed statistics and analytics

Showing 30 tools on page 3 of 21