Record and edit audio files
Select a similar tool:
Create auditory illusions
Identify, track, and log birds
Design and print your own business cards
Track blood pressure, medications, and lifestyle factors.
Track books you have read, are currently reading, and want to read.
Test your knowledge of dog & cat breeds
View and remove cookies, storage, etc.
Country and Phone Dialing Codes
Create any type of certificate
Play checkers, free!
A Set of Important Checklists
Build Linux & Unix file permissions visually.
Classroom document creator for teachers.
Validate Luhn, EAN, IBAN, VIN, etc.
Learn about cognitive biases
Test yourself for colorblindness.
Print pages or color them online.
Check your compatibility with your partner.
Extract contact info from web pages. API
Learn about different countries!
Monitor favorite cryptocurrencies.
Create beautiful buttons for your site!
XML, JSON, TOML, YAML, CSV, TSV, INI,
Find differences in modified texts
Look-up DNS records online
A relaxing dominoes game.
Track pregnancy & milestones
Find the emoji that's different
Tools to help plan your party!