UtilYard — Free Online Tools

Format, validate, and minify JSON data.

Encode and decode Base64 strings instantly — paste any text to encode, or paste Base64 to decode it back to plain text.

Generate version 4 random UUIDs.

Convert Unix timestamps to dates and back.

Encode and decode URLs and URI components — supports percent encoding, encodeURI, and encodeURIComponent.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes.

Test regular expressions with live highlighting.

Convert between HEX, RGB, HSL, and HSV.

Count words, characters, sentences, and more.

Convert text to camelCase, snake_case, and more.

Decode and inspect JSON Web Tokens in your browser.

Encode and decode HTML entities and special characters.

Write Markdown and see the live rendered HTML preview instantly.

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

Count characters, letters, digits, spaces, and lines in text.

Remove duplicate lines from text with options for case and trimming.

Convert text to a clean URL-friendly slug.

Remove leading/trailing spaces, blank lines, and extra whitespace from text.

Calculate how long it takes to read any text at a given reading speed.

Free lorem ipsum generator — instantly create paragraphs, sentences, or words of placeholder text for mockups and wireframes.

Format and beautify SQL queries with proper indentation.

Beautify or minify HTML markup.

Minify and compress CSS to reduce file size.

Remove comments and whitespace from JavaScript.

Translate cron expressions into plain English.

Detect browser, OS, and device type from a user agent string.

Compare two texts and highlight line-by-line changes.

Sort lines alphabetically, by length, or remove duplicates.

Count lines, empty lines, and analyze line length distribution.

Reverse characters, words, or lines — or flip text upside-down.

Find and replace text with regex and case-sensitivity options.

Check if text is a palindrome and find the longest palindromic substring.

Compare two texts word-by-word and highlight inline changes.

Calculate your monthly mortgage payment, total interest, and loan cost.

See how your money grows over time with compound interest and regular contributions.

Generate a full loan amortization schedule showing principal and interest per payment.

Calculate percentages, percent change, and percent difference.

Calculate how much to tip at a restaurant, split the bill among multiple people, and see the total per person.

Estimate your 2025 US federal income tax and effective tax rate by bracket.

Calculate ROI, CAGR, and average annual rate of return on any investment — including annualized return and total gain or loss.

Convert between hourly, daily, weekly, bi-weekly, monthly, and annual salary.

Split your income using the 50/30/20 rule — needs, wants, and savings.

Calculate sale prices, discount percentages, and how much you save.

Add up your assets and liabilities to find your current net worth.

Calculate how long it takes to pay off a debt, total interest paid, and how much extra payments save.

Calculate how long it takes to reach a savings goal and how much interest you will earn along the way.

Calculate the inflation-adjusted value of money over time using a custom or historical inflation rate.

Convert any image to a Base64-encoded string for embedding in HTML, CSS, or JSON.

Generate custom placeholder images for mockups and wireframes with custom dimensions, colors, and text.

Resize images to custom dimensions with aspect ratio lock. Export as JPEG, PNG, or WebP.

Convert PNG, JPEG, or GIF images to WebP format for smaller file sizes and faster page loads.

Compress images and reduce file size. Export as JPEG, WebP, or PNG with adjustable quality.

Generate favicon PNG files at all standard sizes (16px to 512px) from any image.

Upload an image and click anywhere to pick a color. Get HEX, RGB, and HSL values instantly.

View EXIF metadata from JPEG photos — camera model, date taken, ISO, aperture, shutter speed, and more.

Calculate interest, total amount, and interest rate using the simple interest formula.

Estimate your retirement savings with monthly contributions, compound growth, and a target retirement age.