Local-first utilities
Small tools.
Clear answers.
Focused helpers for the moments when you want a result, not an account, an upload, or a maze of settings.
Tools
10 available now
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Text Case Converter
Convert text to upper case, lower case, title case, or sentence case locally in your browser.Open tool →text
Word Counter
Count words, characters, sentences, and paragraphs instantly in your browser.Open tool →calculator
Percentage Calculator
Calculate a percentage of a number with a simple, transparent local calculation.Open tool →text
Duplicate Line Remover
Remove repeated lines from a list while preserving the first occurrence and original order.Open tool →developer
JSON Formatter & Validator
Format, validate, and neatly indent JSON locally in your browser.Open tool →converter
Unit Converter
Convert common length, weight, temperature, and volume units locally in your browser.Open tool →developer
URL Encoder/Decoder
Encode text for use in a URL or decode URL-encoded text locally in your browser.Open tool →developer
Base64 Encoder/Decoder
Encode text as Base64 or decode Base64 text locally in your browser.Open tool →developer
UUID Generator
Generate a random version 4 UUID locally in your browser.Open tool →calculator