Learn. Create. Get things done.

Small tools.
New possibilities.

Explore practical web apps for learning, teaching and everyday work. Choose a tool and get started.

Choose your app

2 apps

Learning & coding

Code Puzzle

Reassemble shuffled code pieces in the correct order. Drag them into your solution, adjust their indentation and check your answer to practise reading and understanding code.

  • Choose an exercise from the file list
  • Drag and reorder code pieces
  • Adjust indentation and toggle piece labels
  • Check your answer and generate the assembled code
CodeLogicExercises
Open Code Puzzle

For coding lessons, individual practice and classroom activities.

Language & communication

Spell — Phonetic Spelling Translator

Turn names, words and email addresses into spelling-alphabet words. Choose an alphabet, display IPA pronunciation and listen to the result using your browser's speech synthesis.

  • NATO / ICAO, German, French, Swiss and Spanish alphabets
  • English and German children's alphabets, plus Luxembourgish Wollef
  • Optional IPA pronunciation guides
  • Spoken playback using browser voices
  • Spelling of digits and common punctuation
SpellingPhonetic alphabetNATOIPALanguages
Open Spell

For spelling names and email addresses over the phone, language lessons and pronunciation practice.