Free Developer Tools Online

Convert JSON, XML, CSV and YAML, beautify or minify code, format SQL, test regular expressions, convert timestamps and number bases, generate UUIDs, parse URLs and draw folder trees. Everyday helpers for developers.

11 tools

JSON / XML / CSV Converter

Convert data between JSON, XML and CSV.

Code Beautifier

Format HTML, CSS and JavaScript code so it is easy to read.

Regex Tester

Test regular expressions: highlighted matches, capture groups and replacements.

Unix Timestamp Converter

Convert Unix timestamps to dates and back, in local time or UTC.

UUID Generator

Generate random v4 or time-ordered v7 UUIDs, and inspect any UUID.

Code Minifier

Minify HTML, CSS and JavaScript to make files smaller.

YAML ↔ JSON Converter

Convert YAML to JSON and back, with the line and column of syntax errors.

SQL Formatter

Format or minify SQL for MySQL, PostgreSQL, SQL Server, Oracle and more.

URL Parser

Break a URL into protocol, host, domain, path, file name and more.

Number Base Converter

Convert numbers between binary, octal, decimal, hex and any base 2–36.

Folder Tree Generator

Turn an indented list, paths or a real folder into a folder tree diagram, with icons by file type.