Skip to content
StringNook
Menu

About StringNook

StringNook makes free, private text tools: a word and character counter, case converter, online notepad, list sorter and text compare, Morse code, number-to-words and binary converters, a fancy font generator and a JSON formatter. Your text is processed in your browser and never sent anywhere.

How our tools work

Every tool on StringNook runs inside your web browser. When you open a file, your own device does the work using built-in browser technology and WebAssembly. Nothing is uploaded, so the tools are fast, work with large files, and keep your files private.

Free, without sign-ups

You'll never need an account or an email address. The site is paid for by ads, which we keep out of the way of the tools themselves.

Who we are

StringNook is built and maintained by BlueEra. We'd love to hear which tool you'd like next, or about anything that doesn't work: get in touch.

More free tools from us

  • VitalsNook: free TDEE, calorie deficit, due date and running pace calculators.
  • FolderNook: free PDF tools: combine, split, PDF to JPG and compare, with no uploads.
  • RiddleNook: free 5 letter word finder, word unscrambler, sudoku and solitaire.
  • ChalkNook: free printable graph paper, calendars, bingo cards and a GPA calculator.
  • StoutNook: free password generator, leak check, file encryption and DMARC checker.
  • CentNook: free margin, VAT and ROI calculators and a barcode generator.
  • SundialNook: free hours, time card, overtime and days-from-today calculators.
  • WrenchNook: free concrete, gravel, square footage and tire size calculators.
  • PrismNook: free image compressor, resizer and HEIC to JPG converter.
  • WaveNook: free mic test, voice recorder, audio cutter and converter.

Open-source software

StringNook is built with Preact, Lucide icons, Mona Sans font. Thank you to their authors. See the open-source licences for versions, source code and licence texts.