All 215 Free Tools

Count words, characters, sentences, and paragraphs in any text instantly.

Convert text between uppercase, lowercase, title case, sentence case, and more.

Paste text and hear it read aloud using Web Speech API. Adjust voice, speed, and pitch in real time.

Compare two blocks of text side-by-side and highlight differences instantly.

Paste text and instantly remove duplicate lines while preserving order.

Strip extra whitespace, fix line breaks, and normalize text for clean output.

Search and replace text with support for regex, case-sensitive, and whole-word matching.

Record audio via your microphone and transcribe speech to text in real time using Web Speech Recognition.

Sort lines alphabetically, numerically, by length, or in reverse order.

Prepend line numbers to each line of text with customizable formatting.

Reveal hidden spaces, tabs, newlines, and zero-width characters in text.

Analyze text to find the most frequently used words and their counts.

Paste text and format it into newspaper-style columns (2, 3, or 4 columns). Live CSS preview and download as image.

Find and remove zero-width spaces, BOM markers, and other hidden Unicode characters.

Calculate keyword density and frequency for SEO content optimization.

Preview how your page title and meta description appear in Google search results.

Convert any text into a clean, URL-friendly slug with customizable separators.

Interactive browsable Unicode table with arrows, math symbols, currency, Greek letters, and box drawing blocks. Click to copy any character.

Type text and render it in a handwriting-style font on lined paper canvas. Download as a PNG image.

Visual WYSIWYG table builder - click to add rows and columns, edit cells inline. Generates markdown table syntax.

Three-way merge tool: paste base text, version A, and version B. Highlights conflicts and lets you click to resolve.

Spin-the-wheel UI to generate random creative writing prompts with genre, setting, and character dials.

Preview text overlaid on images with adjustable font, size, color, and position.

Format, validate, and beautify JSON with syntax highlighting and error detection.

Encode text or files to Base64 and decode Base64 strings back to their original form.

Format and indent SQL queries for better readability across all major dialects.

Convert HTML markup into clean Markdown syntax with support for tables and lists.

Write Markdown and see the rendered HTML output in real time with live preview.

Visualize unified diffs and patch files with color-coded additions and deletions.

Test regular expressions against sample text with real-time match highlighting.

Encode special characters for URLs or decode percent-encoded URL strings.

Convert special characters to HTML entities and decode entities back to characters.

Minify CSS for production or beautify compressed CSS for readability.

Minify JavaScript to reduce file size or beautify minified code for debugging.

Decode and inspect JSON Web Tokens to view header, payload, and signature claims.

Build HTTP requests visually with method, headers, body, and params. Send via fetch and see the full response. Like a mini Postman.

Generate unique UUIDs (v4) and GUIDs individually or in bulk with one click.

Connect to a WebSocket endpoint, send and receive messages, and see a live message log with timestamps.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or file input.

Visualize JSON data as an interactive collapsible tree with type annotations.

Experiment with Flexbox properties visually and copy the generated CSS code.

Design CSS Grid layouts visually with drag-and-drop and export clean CSS code.

Create beautiful code screenshots with syntax highlighting, themes, and padding.

Edit SVG markup with live rendering, syntax highlighting, and instant preview.

Generate favicons in all required sizes from an image, including ICO and PNG formats.

Convert CSV data into structured JSON arrays or objects with automatic type detection.

Transform JSON arrays and objects into downloadable CSV spreadsheet format.

Convert YAML configuration files to JSON format with validation and formatting.

Parse XML documents and convert them to equivalent JSON structure with attributes.

Convert tab-separated values to comma-separated format with proper escaping.

Convert numbers between binary, octal, decimal, and hexadecimal bases.

Convert between Roman numerals and Arabic numbers with validation.

Convert between Celsius, Fahrenheit, and Kelvin with real-time calculation.

Convert between metric and imperial length units including meters, feet, miles, and more.

Convert between kilograms, pounds, ounces, grams, and other weight units.

Convert between square meters, acres, hectares, square feet, and other area units.

Convert between bytes, KB, MB, GB, TB, and PB with binary and decimal options.

Convert between mph, km/h, knots, m/s, and other speed units instantly.

Convert between pixel, rem, and em CSS units with a customizable base font size.

Calculate viewport-relative CSS units (vw, vh, vmin, vmax) for responsive layouts.

Generate a harmonious typographic scale using modular ratios for consistent design.

Translate text to Morse code and back with audio playback of the signal.

Convert between Unix epoch timestamps and human-readable dates across time zones.

Strip all Markdown formatting and output clean plain text content.

Convert Apple HEIC/HEIF photos to widely compatible JPG format in your browser.

Convert WebP images to PNG format for broader compatibility and transparency support.

Extract individual frames from animated GIFs as separate PNG images.

Pick colors visually and convert between HEX, RGB, HSL, and CMYK formats.

Preview how screen colors translate to print with CMYK simulation and proofing.

Preview any Google Font at various sizes, weights, and with custom sample text.

Create linear, radial, and conic CSS gradients with a visual editor and code output.

Generate harmonious color palettes from a base color using color theory rules.

Simulate how colors appear to people with various types of color vision deficiency.

Design box shadows visually with multiple layers and copy the CSS code.

Adjust border-radius values for each corner visually and copy the CSS output.

Create frosted-glass UI effects with adjustable blur, transparency, and border.

Input brand color and font to auto-generate a complete design system: buttons, cards, forms, and typography scale with live preview.

Visual SVG path editor. Click to place points, drag Bezier curves, and see SVG path code update live.

Generate repeating CSS patterns and textures with customizable colors and scale.

Calculate and convert aspect ratios for images, videos, and responsive containers.

Convert SVG vector graphics to PNG or JPG raster images at custom resolutions.

Upload an image and extract its dominant colors as a usable palette.

Generate placeholder images of any size with custom colors, text, and formats.

Design text shadows with multiple layers, blur, and color controls plus CSS output.

Generate strong, random passwords with customizable length, character sets, and complexity requirements.

Analyze password strength with entropy scoring, crack-time estimates, and improvement suggestions.

Create cryptographically random strings for API keys, tokens, salts, and unique identifiers.

Create QR codes for URLs, text, Wi-Fi credentials, vCards, and more with customizable size and colors.

Scan and decode QR codes from uploaded images or your device camera to extract embedded data.

Compute MD5, SHA-1, SHA-256, and SHA-512 checksums to verify file integrity and detect tampering.

Encrypt and decrypt text using AES-256, RSA, or other ciphers with password-based key derivation.

Create encrypted, self-destructing messages with expiration timers and single-view access links.

Generate a customizable privacy policy for your website or app covering GDPR, CCPA, and cookie disclosures.

Build a compliant cookie policy detailing cookie types, purposes, and user consent options.

Build and validate Content-Security-Policy headers with directive helpers and inline hash generation.

Scan any URL and grade its HTTP security headers including HSTS, CSP, X-Frame-Options, and more.

Check SSL/TLS certificate validity, expiration date, issuer chain, and protocol support for any domain.

Encrypted password storage using AES-256 with a master password. All data in localStorage - zero-knowledge, no server.

Hide secret text messages inside images using LSB encoding. Upload an image to encode or decode hidden text.

Generate TOTP codes from a secret key (RFC 6238). Verify codes and test your 2FA setup in real time.

Remove EXIF data, GPS coordinates, camera info, and other metadata from images to protect privacy.

Redact sensitive information from screenshots with blur, pixelate, and black-box tools.

Automatically detect and blur faces in photos to anonymize individuals and protect identities.

Calculate percentages, percentage change, and what percent one number is of another with step-by-step breakdowns.

Calculate tips and split bills between multiple people with customizable tip percentages and rounding options.

Calculate monthly payments, total interest, and generate amortization schedules for loans and mortgages.

Calculate Body Mass Index from height and weight with category classification and healthy range guidance.

Calculate sale prices, savings amounts, and final costs after single or stacked percentage discounts.

Compute mean, median, mode, standard deviation, variance, and other descriptive statistics from a data set.

Convert between fractions, decimals, and percentages instantly with simplification and step-by-step work.

Convert numbers to and from scientific notation with precision control and engineering notation support.

Perform matrix operations including addition, multiplication, determinant, inverse, transpose, and eigenvalues.

Estimate page load times based on file sizes, connection speeds, and resource counts with optimization tips.

Estimate the return on investment for SEO campaigns based on traffic projections, conversion rates, and costs.

Set and validate performance budgets for page weight, request counts, and load-time targets by connection type.

Calculate exact age in years, months, days, and upcoming birthday countdowns from any date of birth.

Calculate the exact difference between two dates in years, months, weeks, days, and business days.

Calculate compound interest growth over time with customizable principal, rate, frequency, and contributions.

Calculate weighted and unweighted GPA from course grades and credit hours with 4.0 and 5.0 scale support.

Solve quadratic equations using the quadratic formula with step-by-step solutions, discriminant analysis, and graphing.

Estimate image file sizes based on dimensions, color depth, format, and compression level before export.

Calculate dots per inch and pixels per inch from screen or print dimensions for optimal image resolution.

Calculate new image dimensions while maintaining aspect ratio for common screen, print, and social media sizes.

Calculate gross, operating, and net profit margins from cost and revenue with breakeven analysis.

Convert between annual salary and hourly rate with adjustments for work hours, overtime, and benefits.

Calculate sales tax amounts, tax-inclusive and tax-exclusive prices for any tax rate or jurisdiction.

Calculate return on investment from initial cost and final value with annualized ROI and comparison tables.

Convert between markup and margin percentages, calculate selling price, and compare pricing strategies.

Convert numeric amounts to written words for invoices, checks, and legal documents in multiple currencies.

Calculate the number of business days between dates or find a future date excluding weekends and holidays.

Estimate net take-home pay after federal and state taxes, Social Security, Medicare, and deductions.

Estimate advertising revenue from impressions, CPM, CPC, and conversion rates across ad networks.

Estimate the revenue potential of ranking for specific keywords based on volume, CTR, and conversion data.

Estimate website development and maintenance costs based on features, complexity, and hosting requirements.

Calculate the break-even point in units and revenue with fixed costs, variable costs, and pricing analysis.

Calculate compound annual growth rate from beginning and ending values over a specified time period.

Fill in company, client, line items, and tax to generate a styled invoice. Print or download as a document.

Estimate product photography costs based on shot count, complexity, retouching, and studio requirements.

Estimate printing costs per page based on paper size, color mode, quantity, and finishing options.

Reference guide for product image size requirements across Amazon, Shopify, eBay, Etsy, and other platforms.

Upload an image and crop to presets for 8 social platforms. Adjust position and zoom, then download the cropped result.

Shorten URLs with local redirect tracking via localStorage. See click counts and generate a QR code for each link.

Build UTM-tagged URLs for campaign tracking with source, medium, campaign, term, and content parameters.

Enter 2+ headlines and see simulated previews in Google results, email subject lines, and social posts side-by-side.

Count characters for Twitter/X, LinkedIn, Facebook, and Instagram with platform-specific limits and warnings.

Calculate click-through rates from impressions and clicks with industry benchmarks and trend analysis.

Check email subject line length against best practices for desktop and mobile with preview text optimization.

Validate meta description length for search engines with pixel-width preview and SERP snippet simulation.

Search, browse, and copy emojis by category or keyword with skin tone variants and recently used tracking.

Upload a receipt photo and manually enter total, date, vendor, and line items. Copy or save structured data locally.

Convert between 30+ currencies using approximate reference rates. Quick conversions with a common-amounts table.

Compare product prices per unit ($/oz, $/ml, $/count) with visual comparison bars. Great for grocery shopping.

Quick reference for image dimensions across Facebook, Instagram, Twitter/X, LinkedIn, YouTube, and TikTok.

Crop and resize images to exact social media dimensions with platform presets and aspect ratio locking.

Preview how thumbnails and OG images will appear on YouTube, social platforms, and search engine results.

Create customizable checklists with groups, due dates, and priorities for any project.

Design a printable daily planner with time blocks, goals, and priority sections.

Measure your typing speed in WPM and accuracy with real-time feedback and stats.

A quick scratch pad for jotting down notes, ideas, and snippets with auto-save.

Pomodoro timer with built-in ambient noise (rain, cafe, forest) generated via Web Audio API oscillators.

Set page weight budgets for scripts, images, and fonts to keep your site fast.

Drag-and-drop Kanban board with To Do, In Progress, and Done columns. Cards persist in localStorage.

Stay focused with a customizable Pomodoro timer featuring work and break intervals.

A precise stopwatch with lap tracking, split times, and exportable results.

Set a countdown timer for events, deadlines, or presentations with audio alerts.

View current times across multiple timezones and convert between them instantly.

Calculate the real cost of meetings based on attendee count, salaries, and duration.

Track daily habits with streaks, completion rates, and visual progress charts.

Spin a customizable wheel or flip a coin to make random decisions quickly.

Select participants' timezones and find overlapping business hours. Interactive visual timeline for scheduling.

On-screen pixel ruler to measure anything on the page. Horizontal and vertical guides with draggable positioning.

Plan responsive image gallery layouts with grid, masonry, and carousel previews.

Track clipboard copies during your session. Search, re-copy, and organize snippets using the Clipboard API.

Convert between bytes, KB, MB, GB, and TB with precise binary and decimal calculations.

View and inspect EXIF data, GPS coordinates, camera settings, and metadata from images.

Open, view, and edit CSV files in a spreadsheet-style table with sorting and filtering.

Visualize JSON data as a collapsible tree with syntax highlighting and search.

Generate Code 128, EAN, UPC, and other barcode formats with customizable size and labels.

Convert images to Base64 data URLs and decode Base64 strings back to images.

Build a robots.txt file with crawler rules, sitemaps, and crawl-delay directives.

Generate Apache .htaccess redirect rules for 301, 302, and rewrite configurations.

Create valid XML sitemaps with priority, change frequency, and last modified dates.

Upload CSV data and instantly preview it as bar, line, pie, or scatter charts.

Upload or paste two JSON files and see a visual tree diff showing added, removed, and changed fields. Collapsible nodes.

View and edit EXIF data including title, description, copyright, and GPS. Re-save image with updated metadata.

View dimensions, file size, format, and color profile for multiple images at once.

Compare two images side-by-side with an interactive slider to spot differences.

Generate thumbnails from images at custom sizes with crop, fit, and fill options.

Create professional HTML email signatures with logos, social links, and custom styling.

Paste HTML email code and preview it in simulated email client frames (Gmail, Outlook, Apple Mail). Responsive test.

Fill in vCard fields and generate a QR code plus styled digital business card. Download both as images.

Enter two colors and check WCAG AA/AAA contrast ratios. Live preview of text on background with pass/fail badges.

Analyze text readability using Flesch-Kincaid, Gunning Fog, and other scoring methods.

Visual drag-and-drop email template builder. Add sections, images, buttons, and export clean HTML code.

Generate JSON-LD structured data markup for articles, products, events, and more.

Create Open Graph meta tags for perfect social media previews on Facebook, Twitter, and LinkedIn.

Build FAQ structured data markup that enables rich results in Google search.

Input one brand color and auto-generate a full color system with shades, tints, semantic colors, and dark mode palette.

Browse Google Fonts pairings. Preview heading and body font combos with live sample text. Filter by style.

Paste HTML or enter a URL to preview at iPhone, iPad, and desktop viewport sizes side-by-side with real iframe rendering.

Resize and crop images to standard email banner dimensions for all major clients.

Crop and resize photos to standard profile picture dimensions for social platforms.

Preview business card designs with standard dimensions, bleed areas, and safe zones.

Interactive periodic table - click elements, enter quiz mode, and guess elements from their properties. Gamified learning.

Explore the periodic table with element details, properties, and category filtering.

Browse and search ASCII, Unicode, and binary character codes with copy-to-clipboard.

Practice identifying WCAG-compliant color contrast ratios with interactive exercises.

Test your knowledge of semantic HTML elements with quizzes and best-practice tips.

Check text readability and accessibility compliance with WCAG guidelines and scoring.

Structured typing lessons with finger placement guide. Track WPM improvement over time with localStorage persistence.

Timed multiplication drills with accuracy tracking per table (1-12). Progress chart saved across sessions.

Identify countries and capitals on a continent-organized world grid. Filter by region, track scores, and learn capitals.

Upload diagrams and add labeled callouts, arrows, and annotations interactively.

Resize and format images to standard presentation slide dimensions (16:9, 4:3).

Interactive unit circle: drag the angle and see sin, cos, tan values update live. Visual trigonometry learning.