Free tools, no sign-up. Pick one below to get started.
Enter your current grade and instantly find your expected high school graduation year.
Open tool →Calculate weighted or simple grade averages. Supports weighted, simple, and points modes.
Open tool →Randomly pick students from your class list. No repeats until everyone's been chosen.
Open tool →Visual countdown timer with presets, custom time, full-screen mode, and audio alert.
Open tool →Create and print customizable grading rubrics. Adjust criteria, levels, and point values.
Open tool →Analyze text readability with Flesch-Kincaid, Gunning Fog, and Coleman-Liau scores.
Open tool →Randomly divide students into balanced groups by count or size. Shuffle anytime.
Open tool →Calculate your GPA from course grades and credit hours. Color-coded results.
Open tool →Create flashcards and study with flip-to-reveal. Shuffle, navigate with keyboard shortcuts.
Open tool →Interactive times table grid with a quiz mode. Track correct answers and streaks.
Open tool →Generate random seating charts for your classroom. Customize rows/columns. Print-ready.
Open tool →Create formatted citations in MLA, APA, and Chicago for books, websites, and journals.
Open tool →Build a color-coded weekly class timetable. Customizable periods, times, and colors. Printable.
Open tool →Track your essay writing progress toward a word goal with a visual progress ring.
Open tool →Create spelling tests that read words aloud. Students type what they hear and get scored.
Open tool →Multiple percentage calculations: X% of Y, percent of, percentage change, increase/decrease.
Open tool →Generate customizable QR codes with custom colors and sizes. Download as PNG instantly.
Open tool →Create strong, secure passwords with custom length, characters, and a strength meter.
Open tool →Generate beautiful color palettes with multiple harmony modes. Copy HEX, RGB, or HSL.
Open tool →Generate placeholder text by paragraphs, sentences, or words. Optional HTML wrapping.
Open tool →Design beautiful linear, radial, and conic gradients visually. Copy CSS with one click.
Open tool →Create clean, printable invoices with line items, tax, and notes. Print or save as PDF.
Open tool →Write Markdown and see a live HTML preview side by side. Copy the rendered HTML.
Open tool →Convert between length, weight, temperature, volume, speed, area, and data units.
Open tool →Calculate tips and split bills between friends. Supports custom tip percentages.
Open tool →Calculate days between dates or set up a live countdown to any event.
Open tool →Calculate and maintain aspect ratios for images, video, and screens. Common presets included.
Open tool →Calculate monthly payments, total interest, and view a full amortization schedule.
Open tool →Calculate your Body Mass Index with imperial or metric units. See your BMI category.
Open tool →Stay focused with the Pomodoro technique. Customizable work sprints and break intervals.
Open tool →Count words, characters, sentences, and paragraphs. Estimate reading time instantly.
Open tool →Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more.
Open tool →Format, validate, and minify JSON with syntax highlighting and error detection.
Open tool →Encode text to Base64 or decode Base64 back to text. Swap input and output instantly.
Open tool →Test regular expressions in real time with live match highlighting and capture groups.
Open tool →Resize images right in your browser. Lock aspect ratio, choose format, and download.
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