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HomeAll Tags › # Code

# Code

Work with code: format, convert and inspect it.

Tools with this tag · 37 tags
Related Articles

Why JSON: The Advantages of a Universal Data Format

Simple, cross-language, fast to parse, with a mature tool ecosystem — JSON became the default for APIs and config files thanks to these traits. Here are its core advantages and use cases.

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JSON Guide: Format, Validate and Convert

JSON error driving you mad? API responses hard to read? This guide shows how to format, minify and validate JSON, plus convert between JSON, CSV, YAML and XML — all free on HeronTool.

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The History of JSON: From JavaScript to the Lingua Franca of APIs

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Why Markdown: Advantages for Writers and Developers

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Markdown Guide: Write, Preview and Convert

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The History of Markdown: Twenty Years of Minimal Markup

Released in 2004 by John Gruber and Aaron Swartz to make web writing easier, Markdown has become the common language of developers, writers and documentation systems. Here is its origin, standardization and rise.

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Code Highlighter Paste code and highlight it into colored HTML in one click. Code XML Formatter Pretty-print and indent XML. Code XML to JSON Convert XML nodes to JSON. Code HTML Formatter Format and indent HTML code. Code CSS Formatter Tidy up CSS rules. Code JS Minifier Minify JavaScript code. Code CSS Minifier Minify CSS code. Code HTML Minifier Minify HTML code. Code SQL Formatter Format and indent SQL. Code UUID Generator Generate RFC4122 UUIDs. Code Hash Generator Compute MD5/SHA1/SHA256/SHA512 of text. Code Diff Checker Diff two code or text blocks. Code Random String Generate a random string of given length. Code HTTP Status Look up HTTP status code meanings. Code JSON to TypeScript Generate TypeScript interfaces from JSON. Code Basic Auth Generator Build an Authorization: Basic header from credentials. Code Docker Run to Compose Convert a docker run command into compose YAML. Code Bcrypt Hash Generator Hash text with bcrypt or verify against an existing hash. Code AES Encrypt / Decrypt Encrypt or decrypt text with AES-GCM (WebCrypto). Code RSA Key Pair Generator Generate an RSA public/private key pair in PEM. Code HMAC Generator Compute HMAC-SHA1/SHA256/SHA512 message auth codes. Code TOTP Authenticator Generate 2FA time-based one-time passwords. Code Chmod Calculator Convert between numeric and symbolic file permissions. Code Crontab Generator Build cron expressions with a human-readable description. Code ULID Generator Generate sortable, time-ordered ULID identifiers. Code Random Port Generator Pick a random TCP/UDP port within a range. Code Keycode Info Press any key to see its event.key, code and keyCode. Code