All Free Online Tools

Calculate your exact age in years, months, days, total days, and total hours from your birth date.

Convert area between square meters, square kilometers, square feet, acres, hectares, and more.

Decode Base64 strings back to plain text. Convert Base64 encoded data to readable text.

Encode text to Base64 format. Convert plain text to Base64 encoded string instantly.

Convert a Base64 data URI back into a downloadable image file. Decode inline images to PNG or JPG.

Calculate your Body Mass Index (BMI) to determine if you're underweight, normal, overweight, or obese.

Find your break-even point in units and revenue. Calculate how many sales you need before your business becomes profitable.

Calculate car loan payments including down payment and trade-in value. See monthly payment, total interest, and true vehicle cost.

Convert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case, and kebab-case.

Count characters, letters, numbers, spaces, and lines in your text with detailed statistics.

Generate harmonious color palettes from a single starting hue. Perfect for designs, themes, and brand colors.

Select colors using a visual color picker, view HEX/RGB values, and explore preset palettes.

Calculate compound interest growth on investments with monthly contributions. See future value across yearly to daily compounding.

Reduce PDF file size while maintaining quality. Optimize PDFs for web sharing and storage.

Check the contrast ratio between two colors and verify WCAG accessibility compliance for text.

Find out how long until your credit card is paid off with fixed monthly payments, plus total interest you will pay.

Crop images online by selecting a custom aspect ratio. Square, 16:9, 4:3, and free-form crops supported.

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

Calculate the final price after a discount. Find the savings amount and final price from original price and discount percentage.

Remove duplicate lines from your text and keep only unique lines. Sort output alphabetically if needed.

Create a QR code that opens a pre-filled email to your address. Add optional subject and message.

Calculate loan EMI with prepayment savings. See how extra monthly payments shorten your tenure and reduce total interest.

Flip images horizontally or vertically. Mirror images along the X or Y axis in one click.

Generate beautiful CSS gradients. Create linear and radial gradients with custom colors and copy the CSS instantly.

Calculate GST for your business. Add or remove GST from amounts using the Indian GST rates of 5%, 12%, 18%, and 28%.

Convert HEIC or HEIF images to JPG format for broad compatibility across devices and apps.

Convert HEX color codes to RGB format. View a live preview of the converted color.

Convert hourly pay to annual, monthly, weekly, and daily salary. Adjust hours per week and weeks worked per year.

Resize images to specific dimensions. Maintain aspect ratio or set custom width and height.

Convert an image to a Base64 data URI. Perfect for embedding images directly in HTML, CSS, or JSON.

Convert one or more images into a single PDF document. Perfect for combining screenshots, photos, and scanned pages.

Convert PNG, JPG, and other image formats to WEBP. WEBP provides superior compression for smaller file sizes.

See how inflation erodes purchasing power over time. Calculate future prices of goods and what your money will be worth.

Convert JPG and PNG images into a single PDF document. Turn photos into a professional PDF file.

Convert JPG images to PNG format. Preserve quality and add transparency support.

Decode JSON Web Tokens (JWT) and view the header and payload. Inspect token contents without any server calls.

Convert lengths between meters, kilometers, centimeters, millimeters, miles, yards, feet, and inches.

Calculate monthly payments, total payment, and total interest for loans with adjustable amount, rate, and term.

Generate placeholder Lorem Ipsum text for your designs and prototypes. Customize paragraphs and sentences.

Generate MD5 cryptographic hashes from text. Compare checksums and verify data integrity.

Generate SEO meta tags for your website including title, description, keywords, Open Graph, and Twitter Card tags.

Calculate monthly mortgage payments, total interest, and the true cost of a home with adjustable down payment, rate, and term.

Generate Open Graph meta tags for rich social media previews on Facebook, LinkedIn, and other platforms.

Check the strength and security level of your passwords. Get detailed analysis and security tips.

Convert the first page of a PDF into a PNG image preview for quick sharing and visual review.

Convert each PDF page into a high-quality JPG image. Extract pages from PDF as individual photos.

Calculate percentages in multiple ways: what is X% of Y, X is what % of Y, X is Y% of what, and percentage change.

Convert PNG images to JPG format. Useful for reducing file size and improving compatibility.

Calculate gross profit, profit margin, and markup from cost and selling price. Understand the difference between margin and markup.

Generate single or multiple random numbers within your custom minimum and maximum range.

Remove extra spaces from your text. Trim leading/trailing spaces and collapse multiple spaces into one.

Project your retirement savings based on current savings, monthly contributions, return rate, and years until retirement.

Convert RGB color channel values (Red, Green, Blue) into a hexadecimal color code.

Generate robots.txt files to control search engine crawling. Configure allow/disallow rules and crawl delays.

Calculate return on investment with total ROI and annualized ROI (CAGR). Compare investments of different sizes and periods.

Rotate uploaded images by 90 degrees for corrected orientation.

Rotate PDF pages by 90, 180, or 270 degrees. Fix incorrectly oriented PDF documents.

Estimate take-home pay from gross salary for the US, UK, and Canada. See estimated tax, effective tax rate, and monthly net income.

Generate SHA1 hashes from text. Useful for checksums and integrity verification of non-critical data.

Generate cryptographic SHA256 hashes from text input instantly. Perfect for security and data verification.

Generate SHA512 hashes from text. SHA-2 family hash producing a strong 512-bit digest.

Calculate simple interest instantly using principal, rate, and time. See interest earned, total amount, and yearly interest.

Calculate returns on your monthly SIP investment. See total invested, estimated gains, and maturity value for any period.

Generate XML sitemaps for your website. Add URLs with priority, change frequency, and last modified date.

Generate a QR code that opens an SMS text message to a phone number with an optional pre-filled body.

Convert speed between meters per second, kilometers per hour, miles per hour, knots, and feet per second.

Split PDF files by page range or extract specific pages. Separate pages into new PDF documents.

Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly.

Reverse your text, words, or lines. Flip entire strings, reverse word order, or reverse each line.

Calculate restaurant tips instantly with quick percentage buttons and bill splitting between any number of people.

Generate Twitter Card meta tags for rich previews when your pages are shared on X (Twitter).

Convert between different units of measurement including length, weight, and temperature.

Remove password protection from PDF files. Unlock secured PDFs with the correct password.

Decode percent-encoded URLs and query strings back to their original readable form.

Encode URLs and text to a valid URL-encoded format. Escape special characters for safe use in URLs and query strings.

Create a QR code that opens your website, link, or app store page when scanned.

Generate random UUIDs (Universally Unique Identifiers). Generate multiple UUIDs at once for testing and development.

Generate a QR code that shares your contact details as a vCard. Add name, phone, email, company, and website.

Convert WEBP images to PNG or JPG format. Make WEBP images compatible with older browsers and tools.

Convert weight between milligrams, grams, kilograms, tonnes, ounces, pounds, and stones.

Generate a WhatsApp QR code that opens a chat or pre-filled message when scanned.

Generate a QR code that shares your WiFi credentials. Guests scan and connect instantly without typing a password.

Convert area between square meters, square kilometers, square feet, acres, hectares, and more.

Find your break-even point in units and revenue. Calculate how many sales you need before your business becomes profitable.

Calculate car loan payments including down payment and trade-in value. See monthly payment, total interest, and true vehicle cost.

Generate harmonious color palettes from a single starting hue. Perfect for designs, themes, and brand colors.