Utilities

Utilities — 4 free browser-based developer tools including Character Difference Counter, Regex Escape and Epoch Converter. Everything runs locally with no signup or uploads, so your data stays private and results are instant.

4 tools
Character Difference CounterCharacter-level diff tool that compares two texts side by side and highlights added, removed and changed characters in color. It also counts the exact number of differences, free in your browser.
Regex EscapeRegex escape tool that escapes special characters such as dot, asterisk, parentheses and brackets in your text. Any string becomes safe to use as a literal pattern in a regular expression, free in your browser.
Epoch ConverterFree online epoch converter to turn Unix timestamps into readable dates and back. Convert seconds or milliseconds, view local and UTC time, and get the current epoch instantly.
Text StatisticsFree online tool to analyze text with character count, word count, sentence count, reading time, and word frequency. It counts Korean syllables separately, lists the top 10 words, and updates statistics in real time.

How to Use

  1. 1
    Measure the text first— Text Statistics counts words, characters, sentences and paragraphs and estimates reading time, which is what you want before writing a meta description or a post.
  2. 2
    Compare two strings character by character— The character difference counter finds the single invisible difference — a trailing space, a non-breaking space, a look-alike Unicode letter — that makes two seemingly identical strings fail a comparison.
  3. 3
    Convert timestamps and escape literals— The epoch converter turns a Unix timestamp into a readable date in your chosen timezone and back, and Regex Escape neutralises the metacharacters in a string so it can go into a pattern as literal text.

Frequently Asked Questions

Because characters like the dot, asterisk, parentheses and brackets change what the pattern means: searching for 3.14 unescaped also matches 3x14, since the dot stands for any character. The Regex Escape tool turns any literal text into a safe pattern, which matters most when the search term comes from user input.

A Unix timestamp has no time zone at all — it simply counts seconds since 1970-01-01 UTC. The converter shows the same number rendered both in UTC and in your local time, which is usually enough to tell whether a bug is a wrong value or a nine-hour time zone mistake.

It reports characters with and without spaces, words and sentences, plus an estimated reading time and the ten most frequent words, and it counts Korean syllables separately. That makes it useful for checking a meta description against a length budget or spotting a word you have overused in a draft.

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