Super Tools

Shuffle the order of words in any text. Perfect for brainstorming and random lists.

Convert text between uppercase, lowercase, title case, and sentence case.

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

Generate placeholder text in paragraphs, words, or sentences.

Format minified JSON with indentation and validate syntax.

Encode text or decode Base64 strings. Handles UTF-8 safely.

Convert between length, weight, volume, and temperature units.

Calculate what is X% of Y, or what percent X is of Y.

Calculate tip amount and total bill for any percentage.

Set a countdown in hours, minutes, and seconds. Get notified when time is up.

Simple stopwatch with lap times. No signup required.

Generate random numbers within a range. Pick integers or decimals.

Generate APA 7 citations for books, articles, and websites.

Generate MLA 9 citations for books, articles, and websites.

Calculate semester or cumulative GPA from letter grades and credits.

Create and flip through simple flashcards for memorization.

Clean and format messy notes: fix spacing, bullets, and headings.

Calculate what score you need on a final to reach a target grade.

Estimate how long it takes to read your article or post.

See how often a keyword appears and its density percentage.

Get a simple readability score (grade level) for your text.

See sentence lengths to check variety (short vs long).

Analyze writing quality: long sentences, adverbs, passive voice, and readability.

Generate HTML meta tags for SEO from title, description, and keywords.

Randomly assign students to groups of a given size.

Create a simple grading rubric with criteria and levels.

Calculate weighted grades and final scores.

Arrange names in a grid for seating (random or manual).

Generate simple math problems (add, subtract, multiply) by grade.

Track participation by student (simple checklist).

Create a simple invoice with line items and total.

Calculate hourly rate from desired annual salary and hours.

Calculate profit margin from cost and price.

Calculate return on investment percentage.

Calculate break-even point in units and revenue.

See how much you save over time with regular contributions.

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

Calculate daily protein, carbs, and fat targets from calorie goal.

Calculate running or cycling pace from distance and time.

Estimate body fat percentage using the U.S. Navy method.

Calculate 5 heart rate training zones from resting HR and age.

Calculate recommended daily water intake based on weight and activity.