Learn and master flag semaphore signals.
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Create any type of certificate
View satellite images by day taken
Track seizures, medications, and identify patterns.
Create professional event tickets.
Various calculators for crafters
Analyze keyword frequency and density.
A surprisingly statategic game based on Tic-Tac-Toe.
Tools & calculators for Ham Radio
Drag-to-rank S/A/B/C tier chart with image upload.
Learn the periodic table of elements
Encode and decode URLs, query strings, and special characters.
Visually construct complex git commands.
Add subtitles to your videos!
Pricing, taxes, inventory, etc.
Find the perfect name for your baby!
Calculate Pearson, Spearman, or Kendall correlations with interactive charts
Seawater, Salinity, pH, etc.
Edit HTML files visually or via code.
Calculate and track your net worth over time.
Learn about different phobias.
Convert to/from Roman Numerals
Create detailed organization charts
Compare stats & calculate fuel costs.
Auto-scrolling lyrics display for live performances and practice.
For RPG gaming, etc.
Keep track of your projects.
A free POS / Cash Register app
Free Online Metronome for Musicians
Helps you build Linux commands with flag and parameter explanations and a live preview.