All 113 Free Online Tools

PNG to JPG Converter

Convert PNG images to JPG format online for free. Reduce file size while maintaining quality.

JPG to PNG Converter

Convert JPG images to PNG format online for free. Preserve transparency and quality.

Image Resizer

Resize images to any dimension online. Preset sizes for social media, HD, and custom dimensions.

Image Compressor

Compress images online for free. Reduce file size with adjustable quality. JPEG, PNG, WebP.

Aspect Ratio Calculator

Calculate aspect ratio from width and height. Scale dimensions while maintaining ratio.

Favicon Generator

Create custom favicons from text. Choose shape, colors. Download as SVG or PNG.

Image Cropper

Crop images to any size or aspect ratio online. Free image cropping tool.

Image to Base64 Encoder

Convert images to Base64 encoded strings. Embed images directly in HTML and CSS.

SVG to PNG Converter

Convert SVG vector graphics to PNG images online. Choose output size and quality.

WebP to PNG Converter

Convert WebP images to PNG format online for free. Maintain quality and transparency.

PNG to WebP Converter

Convert PNG images to WebP for smaller file sizes. Up to 30% smaller than PNG.

Image Color Picker

Pick any color from an image. Get HEX, RGB, and HSL values from photos.

🛠️ Developer Tools49

JSON Formatter & Validator

Format, validate, and beautify JSON data online. Free JSON pretty printer with syntax highlighting.

JSON to YAML Converter

Convert JSON to YAML format instantly. Free online converter with copy support.

YAML to JSON Converter

Convert YAML to JSON format instantly. Free online converter with validation.

XML Formatter & Minifier

Format, beautify, and minify XML online. Free XML pretty printer and validator.

CSV ↔ JSON Converter

Convert between CSV and JSON formats instantly. Free two-way converter.

Base64 Encoder / Decoder

Encode and decode Base64 strings online. Free Base64 conversion tool.

URL Encoder / Decoder

Encode and decode URLs online. Free URL encoding tool for developers.

HTML Entity Encoder / Decoder

Encode and decode HTML entities online. Convert special characters to HTML-safe strings.

UUID Generator

Generate random UUIDs (v4) online. Free bulk UUID generation tool.

Regex Tester

Test regular expressions online with real-time matching and highlighting. Free regex tool.

JWT Decoder

Decode and inspect JSON Web Tokens online. View header, payload and expiration.

Hash Generator (SHA-1, SHA-256, SHA-512)

Generate SHA-1, SHA-256, and SHA-512 hashes online. Free hash calculator using Web Crypto API.

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Live clock included.

Number Base Converter

Convert between Binary, Octal, Decimal, and Hexadecimal number systems instantly.

CSS Minifier & Beautifier

Minify and beautify CSS online. Reduce file size or make CSS readable again.

Markdown to HTML Converter

Convert Markdown to HTML with live preview. Free online Markdown renderer.

Color Converter (HEX / RGB / HSL)

Convert colors between HEX, RGB, and HSL formats. Free color picker and converter.

Binary Translator

Convert text to binary, hexadecimal, or octal and back. Free encoding translator.

JSON Key Sorter

Sort JSON object keys alphabetically (A-Z or Z-A). Deep sorting for nested objects.

JS Beautifier & Minifier

Beautify or minify JavaScript code online. Format messy JS or compress for production.

SQL Formatter

Format and beautify SQL queries online. Auto-indent and uppercase keywords.

Cron Expression Parser

Parse and explain cron expressions in plain English. See next 5 run times.

JSON to TypeScript

Convert JSON objects to TypeScript interfaces instantly. Generate type-safe code.

HTML to Markdown

Convert HTML to clean Markdown. Handles headings, links, lists, bold, italic, and more.

PX to REM Converter

Convert pixels to REM and REM to pixels. With reference table and custom base size.

JSON Path Tester

Test JSONPath expressions against JSON data. See matched values in real-time.

Data Size Converter

Convert between bits, bytes, KB, MB, GB, TB. SI and binary (IEC) units. Transfer time calculator.

HTML Formatter & Beautifier

Format, beautify, and indent HTML code online. Free HTML pretty printer.

JSON to GraphQL Schema

Generate GraphQL schema types from JSON data. Auto-generate types and queries.

YAML Validator

Validate YAML syntax online. Check for errors and format YAML files.

HTTP Status Codes Reference

Complete HTTP status code reference. Search and explore 1xx to 5xx codes with explanations.

CSS Gradient Generator

Create beautiful CSS gradients visually. Linear, radial, and conic gradient builder.

CSS Flexbox Generator

Visual CSS Flexbox layout builder. Generate flexbox code with a drag-and-drop interface.

CSS Grid Generator

Visual CSS Grid layout builder. Create complex grid layouts with an interactive tool.

Tailwind to CSS Converter

Convert Tailwind CSS classes to vanilla CSS. Extract plain CSS from Tailwind utilities.

SVG Optimizer

Optimize and minify SVG files. Reduce SVG file size by removing unnecessary metadata.

Live HTML/CSS/JS Preview

Write HTML, CSS, and JavaScript with live preview. Free online code playground.

Chmod Calculator

Calculate Unix file permissions. Convert between numeric and symbolic chmod notation.

.htaccess Generator

Generate Apache .htaccess rules. Redirects, caching, security headers, and more.

Regex Generator

Generate regular expressions from examples. Describe what you want to match in plain English.

Git Command Generator

Find the right Git command for any task. Searchable reference with examples.

CSV to HTML Table

Convert CSV data to formatted HTML tables. Copy table code instantly.

JSON to Table Viewer

Convert JSON arrays to readable tables. Visualize JSON data in tabular format.

Markdown Editor

Write Markdown with live preview, syntax highlighting, and toolbar shortcuts.

Text to Binary Converter

Convert text to binary code (0s and 1s). Binary to text decoder included.

Text to Hex Converter

Convert text to hexadecimal encoding and back. Free hex encoder/decoder.

HEX to RGB Converter

Convert HEX color codes to RGB values. Color preview included.

RGB to HEX Converter

Convert RGB values to HEX color codes. Find the hex code for any RGB color.

JSON to XML Converter

Convert JSON data to XML format. Free online JSON to XML transformer.

📝 Text Tools17

Word Counter

Count words, characters, sentences and paragraphs online. Free text analysis tool.

Character Counter

Count characters with social media platform limits. Twitter, Instagram, LinkedIn and more.

Case Converter

Convert text to uppercase, lowercase, title case, camelCase, snake_case and more.

URL Slug Generator

Generate URL-friendly slugs from any text. Free SEO slug tool with live preview.

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text. Free dummy text for designs and prototypes.

Text Diff / Compare

Compare two texts side-by-side and see the differences highlighted. Free online diff tool.

Line Sorter & Deduplicator

Sort lines alphabetically, by length, remove duplicates, or shuffle. Free text line tool.

Text Repeater

Repeat any text multiple times with custom separator. Free text repeat tool.

Morse Code Translator

Translate text to Morse code and Morse code to text instantly. Free online translator.

Find and Replace

Find and replace text with regex support, case sensitivity, and whole word matching.

Remove Line Breaks

Remove or convert line breaks. Join lines with commas, spaces, or merge into one line.

Text to ASCII Art

Convert text to ASCII art banner. Generate large text art for READMEs and comments.

Emoji Picker

Browse and copy emojis by category. Click any emoji to copy to clipboard instantly.

Unicode Character Lookup

Search and browse Unicode characters. Find symbols, emojis, and special characters by name.

Invisible Character Detector

Detect hidden and invisible characters in text. Find zero-width spaces and control characters.

NATO Phonetic Alphabet Converter

Convert text to NATO phonetic alphabet. Alpha, Bravo, Charlie spelling system.

Text to Speech

Convert text to natural-sounding speech. Multiple voices and languages. Download as MP3.

🔍 SEO Tools9

Meta Tag Generator

Generate HTML meta tags for SEO. Title, description, Open Graph, Twitter Cards, and more.

Open Graph Preview

Preview how your page looks when shared on Facebook, Twitter/X, and LinkedIn.

Robots.txt Generator

Generate robots.txt files for your website. Control search engine crawling easily.

Keyword Density Checker

Analyze keyword density in your content. Find most used words and optimize for SEO.

SERP Preview Tool

Preview how your page appears in Google search results. Optimize title and description.

Canonical Tag Generator

Generate canonical URL tags to prevent duplicate content issues.

Schema Markup Generator

Generate JSON-LD structured data. Schema.org markup for articles, products, FAQs, and more.

Headline Analyzer

Analyze headline quality and emotional impact. Score your blog titles and headings.

Readability Score Checker

Check the readability of your text. Flesch-Kincaid, Gunning Fog, and Coleman-Liau scores.

🧰 Miscellaneous26

Password Generator

Generate strong, secure passwords with customizable length and character types. Free and private.

Percentage Calculator

Calculate percentages instantly. What is X% of Y, percentage change, increase and decrease.

Age Calculator

Calculate your exact age in years, months and days. Next birthday countdown included.

Tip Calculator

Calculate tips and split bills easily. Custom tip percentage with per-person breakdown.

BMI Calculator

Calculate your Body Mass Index with metric or imperial units. Free BMI health tool.

Countdown Timer

Count down to any date and time. Live countdown with days, hours, minutes, seconds.

Random Number Generator

Generate cryptographically random numbers with custom range and count. Free RNG tool.

QR Code Generator

Generate QR codes from any text or URL. Download as SVG or PNG. Free online tool.

Unit Converter

Convert between units of length, weight, temperature, speed, data, time, and area.

Online Stopwatch

Free online stopwatch with lap tracking. Accurate to milliseconds. Start, stop, and reset.

Loan Calculator

Calculate monthly payments, total interest, and view full amortization schedule for any loan.

Color Palette Generator

Generate beautiful color palettes with harmony rules. Complementary, analogous, triadic, and more.

Pomodoro Timer

Free online Pomodoro timer. 25/5 minute work-break cycles for maximum productivity.

Roman Numeral Converter

Convert between Roman numerals and decimal numbers. Includes a reference table.

Text Encryption / Decryption

Encrypt and decrypt text with AES, DES, and other ciphers. Secure text online.

Compound Interest Calculator

Calculate compound interest on savings and investments. See growth over time with charts.

Salary Calculator

Convert between hourly, weekly, monthly, and annual salary. Tax estimation included.

Discount Calculator

Calculate sale prices and savings. Find the final price after percentage or fixed discount.

GPA Calculator

Calculate your Grade Point Average. Support for 4.0 and weighted GPA scales.

Grade Calculator

Calculate final grades and what you need on the final exam. Weighted grade calculator.

Fuel Cost Calculator

Calculate fuel costs for your trip. Estimate gas expenses based on distance and MPG.

Electricity Cost Calculator

Calculate electricity costs for your appliances. Estimate monthly and yearly power bills.

Calorie Calculator

Calculate daily calorie needs based on age, weight, height, and activity level.

Date / Duration Calculator

Calculate the difference between two dates. Add or subtract days, months, and years.

Mortgage Calculator

Calculate monthly mortgage payments with taxes and insurance. Full amortization schedule.