Print pages or color them online.
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Emergency care instructions for dogs, cats, birds, and more.
View and remove cookies, storage, etc.
Generate a batch of license keys
Choose which scenario you would prefer
Add custom text or logo watermarks to your photos.
Geolocate by IP address
Answer riddles
Generate UUID's
A dozen useful SSL tools
Create and Export Beat Patterns
Multiple tests to assess your vision
Edit HTML files visually or via code.
Track seizures, medications, and identify patterns.
Create professional event tickets.
Compare stats & calculate fuel costs.
Calculate the financial impact of selling a larger home and buying/renting smaller.
Play crossword puzzles online
Create beautiful gift registries
Detect & generate DTMF tones.
A timer / countdown tool
Karaoke player; upload music, add lyrics, sing along, and optionally record it!
A Set of Important Checklists
Calculate Pearson, Spearman, or Kendall correlations with interactive charts
Visualize Audio Frequencies
Assign family chores, print & track.
Create your own Japanese rock garden
An analog-style chess time clock for timing players.
20 great medical related tools
Plot mathematical functions, explore graphs interactively, and perform analysis.