All tools

Encode text to Base32 (RFC 4648) and decode Base32 to text, with UTF-8 support. All in the browser.

B64

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 to text online. Supports UTF-8. Free Base64 converter tool.

💻

Binary Calculator

Perform arithmetic on binary numbers: add, subtract, multiply, divide. Convert results between bases.

rwx

Chmod Calculator

Calculate Unix file permissions. Convert between symbolic (rwxr-xr-x) and numeric (755) chmod notation. Free chmod permission calculator.

⏰

Cron Expression Builder

Build and understand cron expressions visually. See next run times and get human-readable descriptions. Free cron job scheduler tool.

🧪

Fake Data Generator

Generate fake test data for development. Names, emails, addresses, phone numbers. Export as JSON or CSV.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes online. Hash text or verify checksums. Free cryptographic hash generator.

⚙

.htaccess Generator

Generate Apache .htaccess files. Redirects, HTTPS forcing, GZIP compression, caching headers, security headers. Free htaccess tool.

HTML Entity Encoder / Decoder

Encode special characters to HTML entities or decode entities back to characters. Prevent XSS and display special characters. Free HTML encoder.

▦

HTML Table Generator

Create HTML tables visually. Set rows, columns, headers, styling. Generate clean HTML code. Free table generator.

H→M

HTML to Markdown Converter

Convert HTML to Markdown and Markdown to HTML. Paste HTML code and get clean Markdown output. Free HTML/Markdown converter.

🔢

HTTP Status Codes Reference

Complete searchable list of all HTTP status codes with descriptions and common usage. Filter by category, search by number or name, click to copy. Free HTTP status code reference.

JavaScript Minifier / Beautifier

Minify JavaScript to reduce file size or beautify compressed JS for readability. Remove comments and whitespace. Free JS minifier.

JWT

JWT Decoder

Decode and inspect JSON Web Tokens (JWT) online. View header, payload, signature and expiration. Free JWT decoder and debugger.

Markdown Preview

Write Markdown and see the HTML preview in real-time. Supports headings, lists, code blocks, tables, links and images. Free Markdown editor.

📋

Markdown Table Generator

Create Markdown tables visually with an editable grid. Set column alignment, import CSV/TSV data, and copy the generated Markdown syntax. Free online tool.

nid

NanoID Generator

Generate secure, URL-friendly NanoID identifiers with a custom length. Cryptographically random, generated in the browser.

Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal. Support for any base from 2 to 36. Free number system converter.

PX to REM Converter

Convert px to rem and back based on the root font-size. Handy for responsive, accessible CSS.

Random Color Generator

Generate random colors with HEX and RGB codes, copy with one click. Useful for palettes, mockups and tests. In the browser.

📝

Regex Cheat Sheet

Complete regular expression cheat sheet with examples. Character classes, anchors, quantifiers, groups, lookahead, lookbehind, flags. Search patterns, click to copy. Free regex reference.

Regex Tester

Test regular expressions online with real-time matching, highlighting and capture groups. Free regex debugger with cheat sheet.

SQL

SQL Formatter

Format and beautify SQL queries online. Indent SELECT, JOIN, WHERE clauses for readability. Free SQL formatter and beautifier.

Text to Binary Converter

Convert text to binary code and binary to text. Also converts to/from octal and hexadecimal. Free binary converter.

Hex

Text to Hex

Convert text to hexadecimal and back, with full UTF-8 support. All in the browser, no data sent.

⏱

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Current epoch time, UTC and local time. Free timestamp converter.

URL Encoder / Decoder

Encode or decode URLs and query strings online. Percent-encode special characters for safe URLs. Free URL encoding tool.

URL

URL Parser

Break a URL into its components: protocol, host, port, path, query parameters and hash. In the browser.

UUID Generator

Generate random UUID v4 identifiers online. Bulk generate, copy and validate UUIDs. Free UUID/GUID generator tool.

Data & JSON (12)

CSV

CSV to JSON Converter

Convert CSV data to JSON format and JSON to CSV. Parse spreadsheet data for APIs and databases. Free CSV/JSON converter.

🔍

JSON Diff Viewer

Compare two JSON objects and see the differences highlighted. Find added, removed and changed values.

esc

JSON Escape / Unescape

Escape a string to place it in JSON, or unescape a JSON string. In the browser.

{ }

JSON Formatter

Format, validate and beautify JSON data online. Minify or pretty-print JSON with syntax highlighting. Free JSON formatter and validator.

{.}

JSON Path Finder

Explore JSON structure as an interactive tree. Click any value to get its JSONPath. Find and copy paths for API data extraction.

📋

JSON Schema Generator

Generate JSON Schema from JSON data automatically. Supports draft-07. Validate JSON against a schema. Free JSON Schema tool.

📊

JSON to CSV Converter

Convert JSON arrays to CSV format. Handles nested objects. Download as CSV file. Free JSON to CSV converter.

JSON to TypeScript Interface

Generate TypeScript interfaces from JSON data automatically. Convert API responses to typed interfaces. Free JSON to TS converter.

{✓}

JSON Validator

Validate JSON and pinpoint syntax errors with the exact line and column. Format valid JSON, all in the browser.

Query String to JSON

Convert a query string to JSON and a JSON object to a query string. Two-way, in the browser.

XML

XML Formatter

Format and indent XML, check it is well-formed and flag errors. Processed entirely in the browser.

YML

YAML to JSON Converter

Convert YAML to JSON and JSON to YAML online. Validate YAML syntax. Free YAML/JSON converter for configuration files.

CSS & Design (16)

◐

CSS Border Radius Generator

Create CSS border-radius shapes visually. Control each corner independently. Generate circles, pills, blobs and custom shapes. Free border radius tool.

▦

CSS Box Shadow Generator

Create CSS box shadows visually with live preview. Adjust offset, blur, spread, color and opacity. Multiple shadows support. Free box shadow maker.

👁️

Color Blindness Simulator

See how colors look to people with color blindness. Simulate Protanopia, Deuteranopia, Tritanopia and more.

🎨

Color Converter

Convert colors between HEX, RGB, HSL and HSV formats. Color picker with live preview. Free online color converter tool.

🎨

Color Palette Generator

Generate beautiful color palettes. Complementary, analogous, triadic, split-complementary schemes. Export as CSS variables, Tailwind or SCSS.

🖌

Color Picker

Pick colors from a visual color wheel. Get HEX, RGB, HSL values. Eyedropper tool. Free online color picker.

◑

Contrast Checker

Check the contrast between two colors against the WCAG guidelines. See whether text and background pass the AA and AAA levels.

✨

CSS Animation Generator

Create CSS animations visually. Choose from preset animations or build custom keyframes. Free CSS animation tool.

✂

CSS Clip-Path Generator

Visual CSS clip-path generator with shape presets. Create circles, ellipses, polygons, stars, hearts and more. Preview on images or colored backgrounds. Free clip-path maker.

⊞

CSS Grid Generator

Create CSS Grid layouts visually. Set columns, rows, gap. Generate CSS code. Free CSS Grid tool.

CSS

CSS Minifier / Beautifier

Minify CSS to reduce file size or beautify compressed CSS for readability. Free online CSS minifier and formatter tool.

🔤

CSS Text Shadow Generator

Create CSS text-shadow effects visually with live preview. Multiple shadow layers, presets for neon, emboss, retro, 3D, fire and outline effects. Free text shadow generator.

⬛

CSS Flexbox Generator

Create CSS Flexbox layouts visually. Control direction, wrap, justify, align. Generate CSS code instantly. Free flexbox tool.

Font Pair Suggester

Find beautiful font pairings for your website. Preview heading + body combinations with Google Fonts. Free font pairing tool.

🌈

CSS Gradient Generator

Create beautiful CSS gradients visually. Linear, radial and conic gradients with custom colors and angles. Free gradient maker tool.

🌊

Tailwind to CSS Converter

Convert Tailwind CSS classes to plain CSS and vice versa. Real-time conversion with extensive class mappings. Supports spacing, colors, typography, layout, flexbox, grid and more. Free Tailwind converter.

Images (12)

⬛

Favicon Generator

Create favicons from text, emoji, or image. Generate favicon in multiple sizes (16x16, 32x32, 48x48). Free online favicon maker with preview.

🗜️

Image Compressor

Compress images online for free. Reduce file size while maintaining quality. Supports PNG, JPG, WebP. No upload to server — 100% client-side.

✂️

Image Cropper

Crop images online for free. Set custom dimensions or use preset aspect ratios. No upload to server — 100% client-side.

Image Format Converter

Convert images between PNG, JPG, WebP and BMP formats. Free online image converter — no upload, 100% client-side.

📐

Image Resizer

Resize images online. Maintain aspect ratio. Set exact width and height. Download resized images. Free image resizer.

Image Rotate & Flip

Rotate images 90°, 180°, 270° or flip horizontally/vertically. Free online image rotator.

🎭

Image to ASCII Art

Convert any image to ASCII art text. Adjustable width and character set. Copy or download your ASCII artwork.

🖼

Image to Base64 Converter

Convert images to Base64 encoded strings for use in HTML, CSS and data URLs. Drag & drop or upload any image. Free image encoder.

💧

Image Watermark

Add text watermarks to images. Custom text, size, color, opacity and position. Free online watermark tool.

🏞

Random Image Placeholder

Generate random placeholder images from Lorem Picsum. Set dimensions, apply effects. Get URLs for mockups. Free placeholder image API.

🖼

Placeholder Image Generator

Generate placeholder images with custom size, color and text. Download as PNG or get HTML/CSS code. Free placeholder image tool.

SVG to PNG Converter

Convert SVG files to PNG images with custom resolution. Free online SVG to PNG converter — 100% client-side.

Utility (47)

🎂

Age Calculator

Calculate your exact age in years, months, days, hours and minutes. Find days until next birthday. Free age calculator.

▢

Aspect Ratio Calculator

Calculate aspect ratios, resize dimensions proportionally and find common screen resolutions. Free aspect ratio calculator for images and video.

📊

Barcode Generator

Generate barcodes: Code 128, EAN-13, Code 39, ITF. Download as PNG. Free online barcode maker.

⚖

BMI Calculator

Calculate your Body Mass Index. Supports metric and imperial units. BMI categories and healthy weight range. Free BMI calculator.

🫁

Breathing Exercise

Guided breathing exercises for relaxation, focus and stress relief. Box breathing, 4-7-8, and more techniques.

📈

Compound Interest Calculator

Free compound interest calculator. Calculate investment growth with initial deposit, monthly contributions, and different compounding frequencies. Year-by-year breakdown included.

🍳

Cooking Unit Converter

Convert cooking measurements: cups, tablespoons, teaspoons, ounces, grams, liters and more. Free kitchen converter.

⏳

Countdown Timer

Set a countdown to any future date. See days, hours, minutes and seconds remaining. Shareable countdown links. Free countdown timer.

Δd

Date Difference Calculator

Calculate the difference between two dates in days, weeks, months and years. Instant and in the browser.

🏷️

Discount Calculator

Calculate discount price, savings and final amount. Multiple discounts, bulk pricing. Free online discount calculator.

🎨

Drawing Pad

Simple online drawing tool. Draw with mouse or touch. Choose colors, brush size. Download as PNG.

💡

Electricity Cost Calculator

Calculate electricity cost for appliances. Enter watts, hours, rate. See daily, monthly, yearly costs.

✉

Email Address Validator

Validate email addresses for correct format. Check syntax, domain, common typos. Bulk email validation. Free email checker.

🃏

Flashcard Maker

Create study flashcards online. Add questions and answers, flip cards to study. Export and import your deck.

🔢

Fraction Calculator

Add, subtract, multiply and divide fractions. Simplify fractions, convert to decimals. Free online fraction math.

⛽

Fuel Cost Calculator

Calculate fuel costs for your trip. Enter distance, fuel efficiency and gas price. Free trip cost estimator.

GCD and LCM Calculator

Compute the greatest common divisor (GCD) and least common multiple (LCM) of two or more integers.

🎓

GPA Calculator

Calculate your Grade Point Average. Add courses, credits and grades. Supports 4.0 and weighted scales.

🌐

IP Address Lookup

Find your public IP address and geolocation. Look up any IP for country, city, ISP and timezone. Free IP lookup tool.

💰

Loan Calculator

Free online loan calculator. Calculate monthly payments, total interest, and view a full amortization schedule for any loan amount, rate, and term.

🏠

Mortgage Calculator

Free mortgage calculator with monthly payment breakdown, property tax and insurance estimates, extra payment analysis, and total cost over the life of the loan.

🔊

White Noise Generator

Generate white, pink, brown noise for focus, sleep and relaxation. Free online noise machine.

📝

Online Notepad

Simple online notepad with auto-save. Write notes, count words, download as TXT. No signup needed.

🔤

Number to Words

Convert numbers to words in English. Supports decimals, negatives, and currency format. Free online converter.

Password Generator

Generate strong, secure random passwords with custom length, uppercase, lowercase, numbers and symbols. Free online password generator tool.

Percentage Calculator

Calculate percentages: X% of Y, percentage increase/decrease, what percent X is of Y. Free online percentage calculator.

PIN Generator

Generate secure random numeric PINs of the length you want, with a cryptographic generator. No data saved or sent.

🍅

Pomodoro Timer

Free online Pomodoro timer for productivity. 25-minute work sessions with breaks. Track completed sessions. Customizable intervals.

Prime Number Checker

Check whether a number is prime and, if not, show its prime factorization. In the browser.

QR Code Generator

Create scannable QR codes for URLs, text, WiFi networks, email and more. Download as PNG. Free online QR code generator.

🎲

Random Name Generator

Generate random names for characters, babies, pen names or fiction writing. First names, last names, full names.

🎲

Random Number Generator

Generate random numbers, dice rolls, coin flips and lottery numbers. Cryptographically secure random number generator. Free RNG tool.

🎰

Random Picker & Spinner

Pick random items from a list. Spin the wheel to decide. Coin flip, dice roll, random choice maker.

📈

ROI Calculator

Calculate Return on Investment. Compare investments, annualized ROI, break-even analysis. Free ROI calculator.

🏛️

Roman Numeral Converter

Convert between Roman numerals and Arabic numbers. Supports 1 to 3,999,999. Free online converter.

🧾

Sales Tax Calculator

Free sales tax calculator. Calculate tax amount and total price, reverse-calculate pre-tax price, use state tax presets, and calculate bulk items with different tax rates.

🔢

Scientific Calculator

Free online scientific calculator with trigonometry, logarithms, powers, roots and more.

📐

Screen Resolution Tester

Check your current screen resolution, viewport size, DPI and device pixel ratio. Test responsive breakpoints. Free screen info tool.

⏱

Online Stopwatch

Free online stopwatch with lap times. Millisecond precision. Start, stop, lap and reset. Export lap data.

🌡️

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin. Instant conversion with formula display.

🔐

Text Encryption / Decryption

Encrypt and decrypt text with AES-256 encryption using a password. Secure client-side encryption. Free online text encryptor.

🕐

Date & Time Converter

Convert between time zones. Find time differences. Date formatting tool. Free date time converter.

🍽

Tip Calculator

Free tip calculator. Calculate tip amount, total bill, and split between multiple people. Preset tip percentages with round-up option.

⌨️

Typing Speed Test

Test your typing speed and accuracy. Measure WPM, CPM and error rate. Free online typing test.

⚖

Unit Converter

Convert between units of length, weight, temperature, volume, speed and more. Free online unit converter.

👤

Username Generator

Generate unique usernames for social media, gaming, email. Multiple styles and customization.

🌍

World Clock

See current time in multiple cities worldwide. Compare time zones, add your favorite cities. Live updating clock.

Text (23)

Add Line Numbers

Add numbering to each line of a text, with a custom start number and separator. In the browser.

Case Converter

Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more. Free text case converter.

280

Character Counter for Social Media

Check character limits for Twitter/X, Instagram, LinkedIn, YouTube, TikTok and more. Real-time character counting with platform-specific limits.

✂

Duplicate Line Remover

Remove duplicate lines from text instantly. Find and eliminate repeated lines with case-sensitive or case-insensitive matching. Free online tool.

Email and URL Extractor

Extract all email addresses or URLs from a text, deduplicated and counted. Processed locally in the browser.

😀

Emoji Picker & Search

Search and copy emojis by name or category. Browse all Unicode emojis with one-click copy. Free emoji finder and picker tool.

⇄

Find and Replace

Find and replace text on the fly, with case and regular-expression options. All in the browser.

✅

Grammar Checker

Check your text for common grammar, spelling and style mistakes. Free online grammar checker — 100% client-side, no data sent to servers.

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text in paragraphs, sentences or words. Free dummy text generator for designers and developers.

📖

Readability Checker

Analyze text readability with Flesch-Kincaid, Gunning Fog, Coleman-Liau and more. Free readability score tool.

Remove Empty Lines

Remove blank lines from a text, with options to trim extra spaces and collapse multiple blank lines.

R13

ROT13 and ROT47 Cipher

Encode and decode text with ROT13 and ROT47. Reversible transformation, all in the browser.

String Reverser

Reverse text strings, words, sentences, or individual words. Check if text is a palindrome. Free online string reverse tool.

</>

Strip HTML Tags

Remove HTML tags from a text, keeping only the readable content with entities decoded. In the browser.

Text Diff Checker

Compare two texts and highlight the differences. Side-by-side diff view with additions, deletions and modifications. Free online diff tool.

×N

Text Repeater

Repeat any text multiple times with custom separator. Generate repeated text for testing, filler content and more. Free text repeat tool.

↕

Text Sorter

Sort text lines alphabetically, by length, numerically, or randomly. Remove duplicates and empty lines. Free online text sorting tool.

📝

Text Summarizer

Summarize long text into key points. Extractive summarization — picks the most important sentences. Free online text summarizer — 100% client-side.

•

Text to HTML Converter

Convert plain text to HTML with line breaks, paragraphs, clickable links, and mailto links. Also strip HTML tags to plain text. Free online tool.

📡

Morse Code Translator

Convert text to Morse code and Morse code to text. Play audio beeps. Free online Morse translator.

🔊

Text to Speech

Convert text to speech using your browser's built-in voices. Adjust speed, pitch and choose from multiple languages. Free TTS tool.

Word Counter

Count words, characters, sentences and paragraphs in your text. Estimate reading and speaking time. Free online word counter tool.

📊

Word Frequency Counter

Count word frequency in any text. Find most used words, bigrams and trigrams. Exclude common stop words. Free word frequency analyzer.

SEO & Marketing (14)

#️⃣

Hashtag Generator

Generate relevant hashtags for Instagram, Twitter/X, TikTok and LinkedIn. Copy with one click.

Heading Checker

Analyze HTML heading structure for SEO. Check H1-H6 hierarchy, find missing headings, duplicate H1s, skipped levels. Free heading analyzer tool.

📰

Headline Analyzer

Analyze your headline for emotional impact, power words, length and readability. Score your title for SEO and engagement.

Keyword Density Checker

Analyze keyword density and frequency in your text. Check SEO keyword distribution with 1-word, 2-word and 3-word phrase analysis. Free keyword density tool.

•

Meta Tag Generator

Generate HTML meta tags for SEO, Open Graph and Twitter Cards. Preview how your page appears in Google and social media. Free meta tag generator.

Open Graph Preview

Preview how your page will look when shared on Facebook, Twitter/X, LinkedIn and Discord. Edit and generate Open Graph meta tags. Free OG preview tool.

↪

Redirect Rule Generator

Generate redirect rules for Apache .htaccess, Nginx, Cloudflare _redirects, Next.js, and Vercel. Bulk CSV import. Free redirect config generator.

🤖

Robots.txt Generator

Generate robots.txt files for your website. Control which pages search engines can crawl. Free robots.txt generator with templates.

{}

Schema Markup Generator

Generate JSON-LD structured data for SEO. Create schema markup for Article, LocalBusiness, Product, FAQ, HowTo, Event, Person, Organization. Free schema generator.

🗺

XML Sitemap Generator

Generate XML sitemaps for your website. Add URLs with priority and change frequency. Free sitemap generator for SEO.

URL Slug Generator

Convert titles and text into clean URL slugs. SEO-friendly slugs for blog posts, articles and pages. Free slug generator.

✨

Social Media Post Formatter

Format text for social media with bold, italic, unicode fonts. Works on Instagram, Twitter, Facebook, LinkedIn.

🐦

Twitter Card Validator

Preview and generate Twitter/X card meta tags. Create summary and summary_large_image cards with live preview. Free Twitter card generator.

🔗

UTM Link Builder

Build campaign URLs with UTM parameters for Google Analytics tracking. Free UTM generator.

Security (9)

🔐

Bcrypt Hash Generator

Generate and verify bcrypt password hashes. Choose salt rounds. 100% client-side — your password never leaves your device.

🔗

CORS Header Generator

Generate Cross-Origin Resource Sharing headers. Configure allowed origins, methods and headers.

🛡️

CSP Header Generator

Generate Content Security Policy headers to protect your site from XSS and injection attacks. Free CSP builder.

🔍

Hash Identifier

Identify hash types from a hash string. Detects MD5, SHA-1, SHA-256, SHA-512, bcrypt, CRC32 and more. Free online hash analyzer.

🖥️

MAC Address Generator

Generate random MAC addresses. Choose format and vendor prefix. Bulk generation support.

🔑

Passphrase Generator

Generate strong, memorable passphrases from random words. Secure and easy to remember. Customizable length and separator.

🔒

Password Strength Checker

Check how strong your password is. Analyzes entropy, patterns, and crack time. 100% client-side — your password never leaves your device.

🔎

Security Headers Checker

Check which security headers your website uses. Learn which headers to add for better protection.

🌐

Subnet Calculator

Calculate network address, broadcast, host range and CIDR notation. Free online subnet calculator.

PDF (6)

🖼️

Image to PDF

Convert images to PDF. Combine multiple images into one PDF document. Free online converter — no upload, 100% client-side.

📦

PDF Compress

Compress PDF files to reduce file size. Free online PDF compressor — no upload to server, 100% client-side.

📑

PDF Merge

Merge multiple PDF files into one document. Drag to reorder. Free online PDF merger — no upload to server, 100% client-side.

🔀

PDF Page Reorder

Reorder, rotate and delete pages in a PDF. Drag and drop to rearrange. Free online PDF organizer — 100% client-side.

✂️

PDF Split

Split PDF files by page range. Extract specific pages from any PDF. Free online PDF splitter — no upload, 100% client-side.

📸

PDF to Image

Convert PDF pages to JPG or PNG images. Extract all pages as images. Free online PDF to image converter — 100% client-side.

Business (3)

Invoice Generator

Create professional invoices online for free. Add line items, tax, discounts and download as printable HTML. Free invoice maker for freelancers.

business

💰

Markup & Margin Calculator

Calculate markup percentage, profit margin, cost and selling price. Essential business pricing tool.

business

🔒

Privacy Policy Generator