UTILSBOX⚡ALL TOOLS54+
JSON.FORMATHub of five tools: format, validate, minify, convert to XML, and compare two JSON documents.//REGEX.TESTERReal-time regular expressions tester, cheatsheet, debugger and replacer.//PDF.SUITEMerge, split, extract text, rotate and convert PDF pages to images.//IMAGE.STUDIOIn-browser photo editor: crop, resize, filters, WebP/PNG and Base64 encoder.//HTML.BEAUTIFYHTML code beautifier, production minifier and entity encoder.//CSS.MINIFYCSS code formatter, production stylesheet minifier and CSS to SCSS converter.//SQL.FORMATTERSQL query beautifier, dialect translator (Postgres/MySQL) and minifier.//SVG.EXCALIDRAWInteractive vector visual editor powered by Excalidraw and SVG formatter.//TEXT.DIFFWord counter, reading time estimator and dual-text diff comparator.//YAML.CONVERTYAML & JSON bi-directional validator and formatter with syntax checking.//XML.PARSERXML document formatter, tree inspector and XML to JSON converter.//GRAPHQL.STUDIOGraphQL query & SDL formatter, minifier, AST field sorter and validator.//BASE64.CODECBase64 and URL-Safe encoder / decoder with full UTF-8 verification.//PASSWORD.GENCryptographically secure random password and entropy strength generator.//URL.STUDIO8-tool URL suite: encode, decode, validator, component parser and builder.//QR.STUDIOCustom QR code generator with embedded logos, colors, gradients and shapes.//ASCII.EXPLORERInteractive ASCII 0-255 table, Alt keyboard codes and CP437 symbols.//KEYCODES.LIVELive KeyboardEvent detector and JavaScript keycodes cheat sheet.//JWT.DEBUGGERJWT token decoder, claims inspector and Web Crypto signature verification.//BINARY.CODECBidirectional text to binary converter with digital rain and ASCII table.//CHARTS.STUDIOInteractive chart generator (bars, lines, pie, scatter) from CSV data.//UUID.V7Bulk generator for UUID v4, time-ordered v7, v1 and live UUID validator.//CSV.JSONBi-directional CSV to JSON converter with custom delimiters & table grid.//COLORS.STUDIOHEX/RGB/HSL/CMYK converter, palette harmonies and WCAG 2.1 contrast tester.//SEO.METASEO Meta Tags, Open Graph cards and real-time Google SERP card preview.//SCHEMA.JSONLDSchema.org JSON-LD structured data generator for Google Rich Snippets.//SITEMAP.XMLStandard XML Sitemap generator (Protocol 0.9) for Google Search Console.//ROBOTS.TXTRobots.txt generator, AI scraper blocking presets and live URL rule tester.//FAKE.DATASynthetic mock data generator: export records to JSON, CSV, SQL and TypeScript.//CLOCK.WORLDReal-time world clock with 3D holographic globe and 174 country timezones.//DATE.CALCDays between dates, exact age, business days, Unix timestamp and cron parser.//CALC.SUITESuite of 56+ online calculators: percentage, mortgage, loan, VAT, BMI & salary.//JSON.FORMATHub of five tools: format, validate, minify, convert to XML, and compare two JSON documents.//REGEX.TESTERReal-time regular expressions tester, cheatsheet, debugger and replacer.//PDF.SUITEMerge, split, extract text, rotate and convert PDF pages to images.//IMAGE.STUDIOIn-browser photo editor: crop, resize, filters, WebP/PNG and Base64 encoder.//HTML.BEAUTIFYHTML code beautifier, production minifier and entity encoder.//CSS.MINIFYCSS code formatter, production stylesheet minifier and CSS to SCSS converter.//SQL.FORMATTERSQL query beautifier, dialect translator (Postgres/MySQL) and minifier.//SVG.EXCALIDRAWInteractive vector visual editor powered by Excalidraw and SVG formatter.//TEXT.DIFFWord counter, reading time estimator and dual-text diff comparator.//YAML.CONVERTYAML & JSON bi-directional validator and formatter with syntax checking.//XML.PARSERXML document formatter, tree inspector and XML to JSON converter.//GRAPHQL.STUDIOGraphQL query & SDL formatter, minifier, AST field sorter and validator.//BASE64.CODECBase64 and URL-Safe encoder / decoder with full UTF-8 verification.//PASSWORD.GENCryptographically secure random password and entropy strength generator.//URL.STUDIO8-tool URL suite: encode, decode, validator, component parser and builder.//QR.STUDIOCustom QR code generator with embedded logos, colors, gradients and shapes.//ASCII.EXPLORERInteractive ASCII 0-255 table, Alt keyboard codes and CP437 symbols.//KEYCODES.LIVELive KeyboardEvent detector and JavaScript keycodes cheat sheet.//JWT.DEBUGGERJWT token decoder, claims inspector and Web Crypto signature verification.//BINARY.CODECBidirectional text to binary converter with digital rain and ASCII table.//CHARTS.STUDIOInteractive chart generator (bars, lines, pie, scatter) from CSV data.//UUID.V7Bulk generator for UUID v4, time-ordered v7, v1 and live UUID validator.//CSV.JSONBi-directional CSV to JSON converter with custom delimiters & table grid.//COLORS.STUDIOHEX/RGB/HSL/CMYK converter, palette harmonies and WCAG 2.1 contrast tester.//SEO.METASEO Meta Tags, Open Graph cards and real-time Google SERP card preview.//SCHEMA.JSONLDSchema.org JSON-LD structured data generator for Google Rich Snippets.//SITEMAP.XMLStandard XML Sitemap generator (Protocol 0.9) for Google Search Console.//ROBOTS.TXTRobots.txt generator, AI scraper blocking presets and live URL rule tester.//FAKE.DATASynthetic mock data generator: export records to JSON, CSV, SQL and TypeScript.//CLOCK.WORLDReal-time world clock with 3D holographic globe and 174 country timezones.//DATE.CALCDays between dates, exact age, business days, Unix timestamp and cron parser.//CALC.SUITESuite of 56+ online calculators: percentage, mortgage, loan, VAT, BMI & salary.//
MODULE 02 · DATA

YAML Tools

Format and validate YAML configuration files.

Indentation
InputYAML Document
ResultFormat / Validate
# formatted output appears here
// Technical guide & specifications

Technical Guide: YAML 1.2 Specification, Anchors (&) & Best Practices

Master clean configuration architecture for Docker Compose, Kubernetes, and CI/CD pipelines.

1. YAML 1.2 Specification & Space-Based Indentation

YAML structures hierarchy using strict whitespace indentation. Tab characters (\t) are categorically disallowed by the specification to prevent visual discrepancies across different developer IDEs. YAML implicitly infers scalar data types (booleans, numbers, strings), meaning words like "yes", "no", "true", or "false" must be explicitly quoted if intended as literal text.

2. Anchors (&), Aliases (*), and Merge Keys (<<)

To eliminate redundancy (DRY principle), YAML features native anchors (&anchor_name) to declare reusable nodes and aliases (*anchor_name) to reference them elsewhere. Combined with merge keys (<<: *anchor_name), DevOps engineers can inherit shared base environment settings in Docker Compose or Kubernetes manifests.

3. Multiline Block Scalars: Literal (|) vs Folded (>)

For multiline string payloads, YAML provides two distinct operators: the pipe (|) preserves literal line breaks verbatim (essential for bash shell scripts and PEM certificates), while the folded operator (>) replaces single line breaks with spaces (ideal for prose descriptions).

// Architecture & best practices

❓ Frequently Asked Questions about YAML Tools

Why do tabs cause syntax errors in YAML parsers?

Because tabs have ambiguous column widths depending on terminal and editor configurations. To guarantee uniform AST structure across environments, YAML mandates spaces only.

Are my private infrastructure manifests or secrets uploaded anywhere?

No. All parsing, validation, and indentation adjustments take place entirely within your local browser memory.

Is valid JSON also valid YAML?

Yes. Under the official YAML 1.2 standard, JSON is a formal syntactic subset of YAML.

Related Configuration & Data Tools

DATA

JSON Studio

Format, validate, and compare structured JSON data trees.

Open tool →DEV

XML Converter

Format and validate hierarchical XML markup documents.

Open tool →SYS

Cron Expression Parser

Parse and debug recurring task schedules for CI/CD runners.

Open tool →