Developer tools.
Format, validate, encode, convert, and inspect common web and configuration formats locally.
Work locally, download directly
A practical workbench for code snippets, configuration files, HTTP values, schemas, and structured formats without a remote paste service.
YAML & JSON Converter
Convert nested YAML and JSON documents locally in either direction.
CSV to SQL
Turn CSV or TSV rows into typed CREATE TABLE and INSERT statements.
SQL Formatter
Format standard, PostgreSQL, MySQL, SQLite, or SQL Server queries.
HMAC Generator
Sign text with HMAC-SHA-256, SHA-384, or SHA-512 using Web Crypto.
JSON to TypeScript
Generate nested TypeScript interfaces and types from example JSON data.
JSON Schema Generator
Infer a JSON Schema Draft 2020-12 document from example values.
.env Validator & Formatter
Find malformed or duplicate environment variables and normalize the file.
HTTP Header Parser
Convert raw request or response headers into duplicate-safe JSON.
INI & JSON Converter
Convert INI configuration sections and typed values to JSON and back.
JSON Flattener
Flatten nested JSON into portable dot paths or rebuild the original structure.
JSON Path Finder
List safe JSONPath expressions with the type and value at each location.
Query String & JSON Converter
Convert URL query parameters to JSON and preserve repeated values in both directions.
Text & Hex Converter
Encode Unicode text as UTF-8 hexadecimal bytes or decode bytes back to text.
Text & Binary Converter
Convert Unicode text to 8-bit UTF-8 binary bytes and decode them locally.
CSS Formatter
Expand compact CSS into readable nested rules with two- or four-space indentation.
CSS Minifier
Remove comments and unnecessary CSS whitespace while preserving quoted values.
HTML Formatter
Indent HTML structure while preserving scripts, styles, and preformatted content.
HTML Minifier
Remove ordinary comments and redundant HTML whitespace without touching raw content.
URL Parser
Inspect URL components and duplicate-safe query parameters using browser standards.
Basic Auth Utility
Generate or decode UTF-8 HTTP Basic Authorization headers locally.
Content Security Policy Builder
Build enforce or report-only Content-Security-Policy response headers.
Cookie Header Parser
Parse Cookie and Set-Cookie headers, attributes, and encoded values into JSON.
Base32 Encoder & Decoder
Encode UTF-8 text with RFC 4648 Base32 or decode it back locally.
Color Format Converter
Convert hexadecimal colors into normalized HEX, RGB, and HSL values.
Number Base Converter
Convert large signed integers between binary, octal, decimal, hex, and base 36.
URL Query Builder
Build a correctly encoded URL from readable name-value query lines.
Cron Expression Builder
Generate readable hourly, daily, weekly, and monthly cron schedules.
Meta Tag Generator
Create escaped SEO, canonical, Open Graph, and Twitter metadata.
robots.txt Generator
Build crawler access rules and sitemap discovery for a website.
XML Sitemap Generator
Create a standards-compatible XML sitemap from a list of page URLs.
JSON-LD Generator
Generate paste-ready Organization or WebSite schema.org markup.