Browse Tools

Generate secure API keys with customizable length, format, and prefix options for authentication and authorization.

Generate secure passwords with customizable options including length, character types, and complexity settings.

Create memorable and secure passwords with kid-friendly humor. Makes password security fun and engaging for children.

Encode and decode text to/from Base64 format for data transmission and storage.

Encode and decode URLs for safe transmission and proper formatting in web applications.

Generate clean, SEO-friendly URL slugs from text with customizable options for separators, case, and special characters.

Generate MD5, SHA-1, SHA-256, and other hash values for text and data verification.

Create QR codes for URLs, text, contact information, and more with customizable options.

Generate multiple unique identifiers (UUIDs) in various formats for your applications and databases.

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

Pick colors and convert between different formats (HEX, RGB, HSL, HSV) with an intuitive interface.

Generate cron expressions for scheduling tasks with an intuitive interface.

Convert seconds to minutes, hours, days, weeks, months, years and more time units with precision.

Encode and decode text to/from Morse code with audio playback and download functionality. Practice Morse code with sound.

Interactive JSON tree viewer with expand/collapse, syntax highlighting, and copy functionality.

Censor images with blur and pixelate effects. Select areas with rectangle or ellipse tools, adjust intensity, and download results.

Convert JSON data to CSV format with editable table interface. Upload JSON files, edit data structure, and download as CSV.

Convert JSON data to HTML, CSV, or Markdown tables with advanced formatting options. Support for nested objects, arrays, and custom styling.

Convert Markdown tables to HTML, CSV, or JSON format. Perfect for documentation, web pages, and data processing with support for complex tables.

Convert XML data to CSV format with editable table interface. Upload XML files, edit data structure, and download as CSV.

View CSV data with color-coded columns in both raw CSV and table formats. Upload files or paste CSV text for easy visualization.

Convert CSV files between different delimiters (comma, semicolon, tab, pipe) and quote marks. Customize field separators and quoting styles.

Decode URL-encoded CSV data instantly. Convert percent-encoded CSV strings back to readable comma-separated values.

Remove leading and trailing whitespace from CSV cell values. Clean up messy CSV data with options to trim specific columns, remove comments, and delete empty lines.

Transpose CSV data by swapping rows and columns. Convert rows to columns and vice versa with options to handle missing fields.

Convert YAML configuration files to .env format. Upload YAML files or paste YAML text with real-world examples and templates.

Convert YAML data to JSON format instantly. Perfect for parsing configuration files, API responses, and data transformation.

Convert JSON data to TOML format instantly. Perfect for Rust Cargo.toml, Python pyproject.toml, and configuration files.

Convert TOML configuration files to JSON format instantly. Parse Cargo.toml, pyproject.toml, and other TOML files to JSON.

Convert internationalized domain names (IDN) to Punycode and vice versa. Handle Unicode domain names for DNS compatibility.

Convert JSON data to XML format with advanced customization options. Configure root element, attributes, formatting, and more.

Convert JSON data to YAML format with clean formatting. Perfect for configuration files, Kubernetes manifests, and DevOps workflows.

Calculate work hours, breaks, overtime, and wages with an intuitive weekly timesheet. Perfect for payroll and time tracking.

Precision stopwatch with Unix timestamps down to milliseconds. Track elapsed time with both human-readable dates and Unix timestamps.

Convert multiple Unix timestamps at once from text lists or CSV files. Convert to UTC, local time, and relative dates with CSV download.

Generate valid test credit card numbers using the Luhn algorithm for multiple brands. Export results to JSON, CSV, XML, YAML, TOML, and NDJSON.

Bulk add or replace affiliate tags in Amazon URLs. Paste a list of URLs and set your affiliate tag in one click.

Convert annual, monthly, or weekly salary to hourly rate with customizable working hours and detailed calculation breakdown.

Comprehensive text analysis tool with word count, character count, readability scores, reading time estimation, and file upload support.

Flip text in multiple ways: reverse, upside down, mirror text. Support for CSV files with column-specific flipping and batch processing.

Generate cron expressions for N8N workflows with human-readable format, random generator, and common samples.

Compare heights of people, buildings, and celebrities with visual silhouettes. Add custom heights and see side-by-side comparisons.

Generate text fragment URLs that automatically scroll to and highlight specific text on web pages using the #:~:text= syntax.

Random wheel spinner to decide whose turn it is. Choose from templates or add custom options with smooth animations.

Check color contrast ratios for web accessibility compliance. Test text and background colors against WCAG AA and AAA standards.

Decode JWT tokens with interactive JSON viewer and browser-based history log for successful decodes.

Generate secure htpasswd entries for Apache authentication with multiple encryption methods including bcrypt, MD5, SHA, and crypt.

Remove duplicate lines from text input. Supports file upload, preserves order, and can keep first occurrence only.

Generate hreflang tags for multiple URLs and languages. Support for file upload, multi-select countries/languages, and export to various formats.

Compare text files and content with visual diff highlighting. Side-by-side, unified, and inline diff views with file upload support.

Create animated chat conversations with custom participants, avatars, and colors. Design realistic chat interfaces for presentations and mockups.

Convert email addresses in text to clickable HTML mailto links. Upload TXT files or paste text with automatic email detection and HTML preview.

Generate multiple WhatsApp links (wa.me) from phone numbers with custom messages. Bulk create clickable WhatsApp links with automatic phone number normalization.

Calculate SLA percentages, uptime, and downtime periods. Convert between SLA percentages and actual downtime with industry standard examples.

Convert between different byte units (bits, bytes, KB, MB, GB, TB, PB) with interactive slider and comparison table.

Generate Google disavow files to remove harmful backlinks from your SEO profile. Protect your website from toxic links and negative SEO attacks.

Advanced Unicode text spoofing with homoglyphs, invisible characters, RTL override, and combined techniques. Real-time spoofing with intensity control and preview mode.

Track and analyze sleep debt with customizable goals, interactive charts, recovery planning, and scientific insights into sleep health.

Calculate caffeine levels in your system over time with interactive charts, consumption tracking, and personalized recommendations for better sleep.

Add custom text to the beginning or end of each line. Upload files or paste text, then specify prefix/suffix strings for bulk line modification.

Convert tabs to spaces and vice versa with configurable tab size. Perfect for code formatting and maintaining consistent indentation across different editors.

Convert between Roman numerals and decimal numbers in both directions. Learn about Roman numeral system with examples and explanations.

Add or subtract years, months, weeks, days, hours, minutes, and seconds to datetime inputs. Supports batch processing and file uploads.

Add comments to JSON files using _comments sections. Parse JSON keys and generate comment fields for documentation and explanation.

Convert between hexadecimal and decimal numbers with browser-based conversion history and explanations.

Convert between Celsius, Fahrenheit, Kelvin, and Rankine with browser-based conversion history and formulas.

Convert between kilograms, pounds, ounces, grams, and metric tons with browser-based conversion history.

Convert between 13 area units including acres, hectares, square meters, square miles, guntha, cent, ground, and marla with browser-based conversion history.

Convert between 18 volume units including liters, gallons, cups, pints, quarts, fluid ounces, cubic feet, and more with browser-based conversion history.

Convert between 9 length units including meters, kilometers, feet, inches, miles, yards, and millimeters with browser-based conversion history.

Convert between PSI, Pascal, Bar, Atmosphere, kPa, mmHg, Torr and more with browser-based conversion history.

Generate beautiful color schemes including triad, tetrad, split complementary, analogous, and square color schemes with explanations and examples.

Calculate age differences between multiple people. Input names and birthdates to see age gaps between all persons in an easy-to-read card format.

Compare weight and height measurements between multiple people. Input names, weights, and heights to see detailed comparisons and BMI calculations.

Estimate race finish times and calculate required pace for any distance. Plan your training with precise pace calculations and export results to CSV.

Calculate running pace times for different distances with minute/second per km/mile input. Generate pace tables with highlighted special distances like 5K, 10K, half marathon.

Clean text by removing AI-generated markers, hidden characters, and formatting artifacts. Normalize Unicode characters for readable, standard text.

Calculate time differences between consecutive timestamps in CSV data. Process CSV text or files and select timestamp columns for delta analysis.

Calculate investment returns for lumpsum investments with CAGR, future value, and compound interest calculations. Browser-based history tracking for all calculations.

Calculate and compare unit prices (cost per ounce, pound, kilogram, liter) to find the best value when shopping. Track calculation history.

Calculate discounts with tax considerations. Support for percentage off, fixed amounts, bulk deals (2 for 1, 3 for 2), and complex discount scenarios.

Calculate electricity costs for multiple appliances. Add appliances with power ratings, quantities, and runtime to estimate daily consumption and costs.

Calculate the true cost of meetings based on attendee salaries, meeting duration, setup time, and supplementary costs. Support for one-time and recurring meetings.

Calculate Cost Per Click (CPC) and Cost Per Mille (CPM) for advertising campaigns. Convert between CPC and CPM using CTR with detailed calculation history and examples.

Calculate customer retention rate and attrition rate with detailed breakdown. Track existing customers, new acquisitions, and analyze customer loyalty metrics.

Calculate customer churn rate based on starting customers and customers lost during a period. Track customer retention with detailed breakdown and analysis.

Calculate gross and net rental yield for property investments. Track rental income, expenses, vacancy rates, and compare property ROI with detailed analysis and log history.

Calculate probability of coin flip outcomes with step-by-step examples. Track results with browser-based calculation history and detailed explanations.

Remove XML tags from text while preserving content. Clean XML data by stripping all markup and keeping only the inner text.

Remove empty items and whitespace from lists with customizable separators. Clean up lists by removing empty entries and invisible whitespace characters.

Convert CSV data to JSON format with options for custom column names or header row detection. Upload files or paste CSV text with sample data.

Convert CSV data to JSONL (JSON Lines) format with each JSON object on a separate line. Perfect for streaming data processing and big data applications.

Convert CSV data to markdown table format with option to treat first row as column headers. Perfect for documentation and README files.

Calculate fair tip distribution based on hours worked. Divide total tips proportionally among employees based on their work hours with detailed breakdown.

Estimate how long it takes for an investment to double using the Rule of 72 formula. Calculate time to double based on interest rate with both approximation and exact calculations.

Interactive JSONL (JSON Lines) viewer with expand/collapse, syntax highlighting, and line-by-line navigation. Visualize and explore newline-delimited JSON data.

Calculate credit card debt-to-limit ratio (credit utilization) with support for multiple cards. Helps optimize your FICO score by tracking credit utilization.

Calculate asset depreciation using the straight-line method. Includes depreciation schedule, annual breakdown, and visual chart for accounting and tax purposes.

Add bullet points, symbols, or custom characters to plain text lists. Choose from various bullet styles or use your own custom prefix.

Estimate crowd size using the Jacobs Method. Calculate number of people in an area based on space dimensions and crowd density levels.

Calculate expected waiting time in queues using queueing theory (M/M/1 model). Estimate wait times based on arrival rate, service rate, and number of servers.

Calculate call center staffing requirements using Erlang C formula. Determine agents needed based on call volume, handle time, and service level targets.

Assess fatigue risk for shift workers based on sleep duration, hours awake, shift type, and circadian factors. Get personalized safety recommendations.

Calculate memory retention using the Ebbinghaus forgetting curve. Plan spaced repetition schedules for optimal learning and long-term knowledge retention.

Project future affiliate marketing earnings with traffic growth, conversion rates, and commission calculations. Visualize income projections over time.

Calculate the monetary value of your email list based on subscriber count, open rate, click rate, conversion rate, and commission. Essential for email marketers.

Calculate the return on investment for your blog posts and videos. Track content costs, revenue, and performance metrics to optimize your content strategy.

Identify where leads drop off in your marketing funnel. Calculate conversion losses at each stage from impressions to checkout and optimize your funnel performance.

Calculate the real value loss from fake followers on influencer accounts. Estimate wasted spend and true engagement metrics for brand and agency partnerships.

Calculate your TikTok affiliate content virality score. Analyze views, share rate, and conversion rate to get momentum indicators and optimal post timing suggestions.

Fun viral calculator to see if your affiliate income can cover your monthly expenses. Get a reality check with emoji reactions and shareable results.

Estimate your Reddit karma growth based on posts per week, average upvotes, and comment engagement. Calculate time to reach karma milestones like 1K or 5K.

Calculate potential ROI from subreddit promotions. Enter subscribers, online users, CTR, conversion rate, and AOV to estimate revenue and ROI for Reddit marketing.

Calculate depth of field for photography. Enter focal length, aperture, subject distance, and sensor size to determine the zone of sharpness in your images.

Master the exposure triangle by calculating EV from ISO, aperture, and shutter speed. Understand how these three elements work together for perfect exposure.

Calculate effective focal length based on sensor crop factor. Convert lens focal lengths between full-frame and crop sensor cameras (APS-C, Micro 4/3, etc.).

Calculate the hyperfocal distance for maximum depth of field in landscape photography. Enter focal length, aperture, and circle of confusion to find the optimal focus point.

Calculate the required ISO for low-light photography conditions. Enter aperture, shutter speed, and light level (EV) to determine optimal ISO settings.

Estimate bokeh blur intensity based on focal length, aperture, and subject distance. Visualize background blur potential for portrait and artistic photography.

Calculate the minimum shutter speed for sharp handheld photos. Based on focal length and crop factor to avoid camera shake blur.

Calculate storage requirements for photography. Enter megapixels, file format (RAW/JPEG), and number of shots to estimate memory card and storage needs.