🧰 FreeTools

🛠️ Developer Tools

JSON formatter, Base64 encoder, regex tester, and more essential tools for developers.

JSON Formatter

Format, beautify, and validate JSON data instantly. Free online JSON formatter for developers.

Base64 Encoder / Decoder

Encode and decode Base64 strings online. Supports UTF-8 text and binary data.

Regex Tester

Test and debug regular expressions online. Real-time matching with highlights and capture groups.

Markdown Preview

Live Markdown preview with GitHub-flavored rendering. Write and preview in real-time.

HTML Entity Encoder

Encode and decode HTML entities. Convert special characters like <, >, & to their entity equivalents.

JWT Decoder

Decode JWT tokens and inspect header, payload, and signature. No server needed.

Code Minifier

Minify CSS, JavaScript, and HTML code. Remove whitespace and comments to reduce file size.

SQL Formatter

Format and beautify SQL queries. Keywords are automatically uppercased and indentation is applied.

Diff Checker

Compare two texts line by line. See added, removed, and unchanged lines with color highlighting.

Cron Expression Parser

Parse and explain cron expressions. Understand what each field means in human-readable language.

HTTP Status Code Reference

Browse all HTTP status codes with descriptions. Search by code number, name, or description.

Morse Code Translator

Translate text to Morse code and vice versa. Supports letters, numbers, and common punctuation.

Binary to Text

Convert text to binary and binary to text. Each character is represented as 8-bit binary.

HEX to Text

Convert text to hexadecimal and hexadecimal to text. Each character is two hex digits.