Text Tools Guide
How to efficiently process, clean, and transform text data with developer tools.
Developers process text constantly — comparing config files, cleaning log data, sorting lists, counting characters for API limits. The right tool turns a 10-minute manual task into 10 seconds.
Text Diff
Uses the Myers diff algorithm to find the minimum set of changes between two inputs. Essential for comparing API responses, config files, or log outputs — without needing a full IDE.
Regular Expressions
/^[\w.-]+@[\w.-]+\.[a-z]{2,}$/i // Email validation
/https?:\/\/[^\s]+/g // Extract URLs
/\d{4}-\d{2}-\d{2}/ // ISO dates (YYYY-MM-DD)
/\b(?:\d{1,3}\.){3}\d{1,3}\b/ // IP addresses
// Flags: g=global i=case-insensitive m=multiline s=dotAllCase Conversion Reference
- camelCase — JS variables:
myVariableName - PascalCase — Class names:
MyClassName - snake_case — Python/DB:
my_variable_name - kebab-case — CSS/URLs:
my-variable-name - SCREAMING_SNAKE — Constants:
MY_CONSTANT
Frequently Asked Questions
How do I remove duplicate lines?
Use the Remove Duplicate Lines tool, or on the command line: sort file.txt | uniq > output.txt
How many tokens is my text?
Roughly 1 token per 0.75 English words, or ~4 characters. A 1000-word article ≈ 1300 tokens for GPT-style models.
What does the word counter count?
Words (split on whitespace), characters (with and without spaces), sentences (split on . ! ?), paragraphs (blank-line separated), and reading time estimate.
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JSON-Syntax sofort validieren mit detaillierten Fehlermeldungen.
JSON-Minifizierer
JSON durch Entfernen von Leerzeichen komprimieren.
JSON zu CSV
JSON-Arrays in CSV-Format für Tabellen konvertieren.
JSON zu XML
JSON-Daten sofort in gültiges XML-Format konvertieren.
JSON-Vergleich
Zwei JSON-Objekte vergleichen und Unterschiede hervorheben.