JSON → YAML
Convert JSON data into readable YAML.
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Search by name or format, filter by category, or jump back into something you used recently. 169 of 174 tools run entirely in your browser; the rest process your input on a server.
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63 tools match
JSON → YAML — open tool
YAML → JSON
Parse YAML and output formatted JSON.
CSV → JSON
Turn CSV rows into an array of JSON objects.
JSON → CSV
Convert an array of JSON objects into CSV.
JSON → XML
Build a well-formed XML document from JSON data.
XML → JSON
Parse XML elements and attributes into formatted JSON.
CSV → XML
Build a well-formed XML document from CSV rows.
CSV → Markdown
Format CSV data as a Markdown table.
Markdown → CSV
Extract the first Markdown table as CSV data.
JSON to YAML Text
Convert JSON text into readable YAML directly in your browser.
YAML to JSON Text
Convert YAML text into formatted JSON locally.
XML Formatter
Format XML with consistent indentation and readable structure.
JSON Validator
Check JSON syntax and get a clear validation result instantly.
Regex Tester
Test regular expressions against sample text with match details.
JSON Formatter
Format, validate and minify JSON without leaving the page.
Base64 Encoder/Decoder
Encode text as Base64 or decode Base64 back to text, with full Unicode support.
SQL Formatter
Format SQL queries for any major dialect with clean indentation and optional uppercase keywords.
HTML Formatter
Pretty-print HTML with consistent indentation, right in your browser.
CSS Formatter
Format CSS with readable indentation and one declaration per line.
JavaScript Formatter
Format JavaScript with consistent indentation, locally.
JSON to TypeScript
Generate TypeScript types from a JSON sample, with named types for nested objects.
QR Code Generator
Create QR codes for any text with size, color and error-correction control, downloadable as PNG or SVG.
Color Converter
Convert between HEX, RGB and HSL, with a live swatch and WCAG contrast ratios.
JS Minifier
Minify JavaScript with real terser — comments, whitespace and identifiers — with ES5/ES6 target and console stripping.
CSS Minifier
Strip comments, collapse whitespace, shorten hex colors and drop empty rules from CSS.
HTML Minifier
Remove comments, normalize tag whitespace and collapse text whitespace — safely, around scripts, styles and textareas.
XML Validator
Check XML well-formedness with the line and column of the first structural error.
YAML Validator
Validate YAML documents — including multi-document streams — with line and column for errors.
JSON Schema Validator
Validate a JSON document against a JSON Schema (draft-07 plus common formats) and list every violation.
HTML Entity Encoder/Decoder
Encode text as HTML entities (named or numeric) or decode an entity-laden string back to plain text.
Unicode Escapes
Convert text to \uXXXX escapes and back, with a code-point breakdown of every character used.
IP & CIDR Calculator
Analyze IPv4 and IPv6 addresses: network, broadcast, usable hosts and block size from a CIDR.
JSON to Python
Generate Python dataclass definitions from a JSON sample with correct type annotations.
JSON to Go
Generate Go struct definitions from a JSON sample with correct types and JSON tags.
JSON to C#
Generate C# class definitions from a JSON sample with auto-properties.
JSON to Java
Generate Java class definitions from a JSON sample with getters, setters and typed fields.
JSON to SQL
Generate CREATE TABLE SQL statements from a JSON sample with appropriate column types.
Cron Generator & Explainer
Build cron expressions with sliders and presets, and get a plain-English explanation.
HTTP Status Code Lookup
Search HTTP status codes by number or name — get a clear explanation for every code.
MIME Type Lookup
Search MIME types by name, extension or category — get the correct Content-Type value.
User-Agent Parser
Parse any User-Agent string to extract browser, engine, OS, device type and bot detection.
JSON Diff
Compare two JSON objects and see every added, removed and changed field.
HTML to JSX
Convert HTML to React-compatible JSX — classes, styles, self-closing tags.
CSS Units Converter
Convert between px, rem, em, pt, vh, vw and % for responsive CSS.
Regex Cheatsheet & Tester
Common regex patterns with a syntax reference — test them against your text.
Keyboard Key Code Tester
Press any key to see its key, code, keyCode, which, location and modifier state.
CSV Column Extractor
Select specific columns from CSV data by index — reorder, filter and export.
Font Size Converter
Convert between px, pt, rem, em, % and viewport units for web typography.
Screen Resolution Tester
See your current screen dimensions, pixel ratio and responsive breakpoints.
Text ↔ Binary Converter
Convert text to binary and binary back to text, one click away.
WCAG Contrast Checker
Check color-pair contrast against WCAG AA and AAA accessibility standards.
JSON Minifier
Compress JSON by removing all whitespace — see bytes saved instantly.
Markdown to HTML
Convert Markdown to HTML with headings, lists, links, code blocks and more.
Color Blindness Simulator
See how images look with protanopia, deuteranopia, tritanopia or achromatopsia.
JSON Schema Generator
Generate a JSON Schema (draft-07) from a sample JSON document automatically.
HTTP Headers Reference
Search and explore HTTP request/response headers with descriptions and examples.
CORS Headers Explainer
Configure and visualize CORS headers — see the preflight request and response.
Docker Compose Generator
Build docker-compose.yml visually — add services, ports, volumes and env vars.
package.json Generator
Build a package.json interactively — name, deps, scripts, all in one place.
Cron Expression Validator
Validate cron expressions — check each field against its range with clear errors.
AI Regex Generator
Describe what to match in plain English — get a regex with explanation and tester.
AI SQL Generator
Describe a query in English, provide your schema — get the SQL instantly.
AI JSON Schema Generator
Describe your data structure in English — get a complete JSON Schema (draft-07).
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