Developer Tools

Beautify, minify, validate, and fix JSON with syntax highlighting.

Convert JSON to Go struct definitions with tags and options.

Convert JSON to TypeScript interfaces or types.

Convert between JSON and YAML formats with preserved structure.

Convert CSV files to JSON and JSON to CSV with custom delimiters.

Format and beautify SQL queries with syntax highlighting.

Generate API keys, secure tokens, passwords, and cryptographic keys with customizable formats.

Convert Unix timestamps (seconds/milliseconds) to human-readable dates and vice versa.

Convert time between different timezones worldwide.

Encode text to Base64 or decode Base64 to text. Supports files.

URL encode (percent-encode) or decode strings for safe web transmission.

Generate UUIDs (v4, v7) for unique identifiers in applications.

Convert between bytes, KB, MB, GB, TB, PB with precision.

Test regular expressions against text in real time. Shows all matches, groups, and positions.

Generate SHA-1, SHA-256, SHA-384, SHA-512 cryptographic hash values from any text.

Decode and inspect JWT (JSON Web Token) header, payload, and signature without server-side verification.

Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).

Encode special characters to HTML entities and decode HTML entities back to plain text.

Parse and explain cron expressions in plain English. Understand scheduling syntax instantly.

Format, beautify, or minify HTML code. Clean up messy HTML with proper indentation.

Minify and compress CSS code by removing comments, whitespace, and redundant characters to reduce file size.

Fake names, emails, phones, and addresses for mockups. example.com only; all generated locally.

Paste JSON arrays or CSV with headers; convert both ways using PapaParse locally.

Replace text with regex and capture groups ($1, $2…). Preview-safe, all client-side.