Developer Tools
Essential tools for developers — format, encode, decode, convert, and debug JSON, URLs, JWT tokens, regex, timestamps, and more. All in your browser.
JSON Formatter
Prettify and validate JSON instantly.
JSON Minifier
Compact JSON to reduce payload size.
JSON Viewer
Inspect and explore JSON structure.
JSON to YAML
Convert JSON to YAML format.
YAML to JSON
Convert YAML to JSON format.
Base64 Tool
Encode and decode Base64 strings.
URL Encoder
URL-encode or decode query strings.
URL Parser
Break down and analyse URL components.
Query Builder
Build and visualise URL query strings.
Regex Tester
Test and debug regular expressions.
JWT Decoder
Decode and inspect JWT tokens.
Timestamp Converter
Convert Unix timestamps to human dates.
HTML Beautifier
Format and indent HTML code.
JSON to CSV
Convert JSON arrays to CSV tables.
JSON to SQL
Generate SQL INSERT statements from JSON.
Looking for something else?
Browse all toolsZadein provides a set of everyday developer utilities including JSON formatting, Base64 encoding, regex testing, JWT decoding, hash generation, and more. Each tool is designed for speed and runs entirely in the browser.
Developer tools process data entirely in the browser. No input data is sent to Zadein servers.
Outputs use standard formats compatible with all major programming languages and environments.