Tool directory

One index. Every tool.

Browse the full Raytolfas library, filter by category, and jump straight into the tool you need. Everything is organized to stay simple and easy to scan.

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36 tools available.

Word Counter

Count words, characters, sentences, and paragraphs in plain text.

Character Counter

Measure characters with and without spaces for metadata and UI copy.

Reading Time Calculator

Estimate reading and speaking time from any text block.

Case Converter

Convert text to lower, upper, title, sentence, and alternating case.

Slug Generator

Create clean URL slugs from headlines and page titles.

Text Reverser

Reverse characters or word order in any text block.

Duplicate Line Remover

Remove repeated lines while keeping the first occurrence.

Whitespace Cleaner

Trim extra spaces and normalize blank lines in pasted text.

Line Sorter

Sort lines alphabetically or numerically in ascending or descending order.

Base64 Encoder Decoder

Encode plain text to Base64 or decode Base64 back to text.

URL Encoder Decoder

Encode strings for URLs or decode percent-encoded values.

JSON Formatter

Validate, pretty-print, and minify JSON in the browser.

Developer Tools

SHA256 Generator

Create a SHA-256 hash for text input in your browser.

Developer Tools

Password Generator

Create strong random passwords with custom length and character sets.

Developer Tools

UUID Generator

Generate one or more random UUID v4 values instantly.

Developer Tools

Binary Decimal Converter

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

Developer Tools

HEX RGB Converter

Convert HEX colors to RGB and RGB colors back to HEX.

Developer Tools

PX to REM Converter

Convert between px and rem using any root font size.

Developer Tools

Aspect Ratio Calculator

Simplify width and height into an aspect ratio and scaled dimensions.

Developer Tools

Lorem Ipsum Generator

Generate lightweight lorem ipsum placeholder paragraphs for mockups.

Finance Calculators

Percentage Calculator

Find what percentage one number is of another.

Finance Calculators

Percentage Change Calculator

Measure percentage increase or decrease between two values.

Finance Calculators

Discount Calculator

Calculate sale price and savings from a percentage discount.

Finance Calculators

Tip Calculator

Calculate tip amount, total bill, and per-person split.

Finance Calculators

Loan Calculator

Estimate monthly payment, total paid, and total interest.

Finance Calculators

ROI Calculator

Calculate return on investment from gain and cost.

Finance Calculators

Profit Margin Calculator

Calculate profit, margin, and markup from revenue and cost.

Finance Calculators

Unit Price Calculator

Calculate cost per item, gram, liter, or any other unit.

Date & Time Tools

Age Calculator

Calculate exact age in years, months, and days.

Date & Time Tools

Date Difference Calculator

Find the difference between two dates in days, weeks, months, and years.

Date & Time Tools

Days Until Calculator

Count how many days remain until a future date or elapsed since a past date.

Date & Time Tools

Timestamp Converter

Convert Unix timestamps to readable dates and readable dates to Unix time.

BMI Calculator

Estimate body mass index using metric or imperial values.

Calorie Calculator

Estimate daily maintenance calories with activity level.

Ideal Weight Calculator

Estimate ideal weight using a simple height-based formula.

Developer Tools

Random Number Generator

Generate one or more random numbers inside a custom range.