JSON, YAML & XML

{ }

JSON Formatter

Pretty-print, validate and repair JSON, with exact error locations.

{▸}

JSON Viewer

Explore JSON as a collapsible tree, search keys and values, and copy any path.

{…}

JSON Minifier

Strip whitespace to shrink JSON and see the bytes saved.

{ } → ,

JSON to CSV

Flatten JSON arrays into CSV for Excel or Google Sheets.

, → { }

CSV to JSON

Turn CSV with a header row into a typed JSON array.

</>

XML Formatter

Pretty-print or minify XML and find errors by line and column.

</>→{}

XML to JSON

Convert XML to JSON, with attributes, repeated elements and text handled.

{}→</>

JSON to XML

Convert JSON to well-formed XML, with @keys as attributes and arrays as repeated tags.

</>→,

XML to CSV

Convert XML to CSV: each repeated element becomes a row, attributes become columns.

Y→J

YAML to JSON

Convert YAML to JSON as you type, with exact error locations. Supports multiple documents.

J→Y

JSON to YAML

Convert JSON to clean, readable YAML as you type. Choose indentation and sort keys.

Y✓

YAML Validator

Check YAML for errors with the exact line and column, and see it cleanly formatted.

{}→▦

JSON to Excel

Convert JSON to a real Excel .xlsx file: columns from keys, one sheet per list.

▦→{}

Excel to JSON

Turn an Excel sheet into JSON: one object per row, keys from the header row.

TS

JSON to TypeScript

Generate TypeScript interfaces or types from JSON, with optional fields and nested types.

Z

JSON to Zod

Generate a Zod schema (v4 or v3) from JSON, with inferred TypeScript types.

◭

JSON to Prisma

Turn sample JSON into Prisma models with relations, ready for schema.prisma.

Encode & decode

b64

Base64

Encode text or files to Base64 and decode Base64 back to text, images or files.

%20

URL Encode

Percent-encode text for URLs and decode %20-style strings, with a query string breakdown.

&lt;

HTML Escape

Escape text into HTML entities like &lt;, or decode entities back to plain text.

JWT

JWT Decoder

Decode JSON Web Tokens, check expiry and verify HS, RS, PS, ES and EdDSA signatures.

\"

JSON Escape

Escape text for use inside a JSON or JavaScript string, or unescape \n, \" and \u sequences.

01

Binary Translator

Translate text to binary code and binary back to text, with emoji and every language.

🖼→64

Image to Base64

Turn images into Base64 data URIs, ready-made img tags or CSS backgrounds.

A=65

ASCII Table

Every ASCII code in decimal, hex, octal and binary, with a text-to-ASCII converter.

·−

Morse Code

Translate text to Morse code and back, then hear it as sound or watch it flash.

A→D

Caesar Cipher

Encode and decode Caesar shift ciphers, or crack one by trying every shift.

Numbers & hashes

01

Base Converter

Convert numbers between binary, decimal, hex, octal and any base, with step-by-step working.

#

Hash Generator

MD5, SHA-1, SHA-256 and SHA-512 hashes of text or files, with HMAC and checksum compare.

Text & Markdown

±

Diff Checker

Compare two texts or files and highlight every added, removed and changed line.

.*

Regex Tester

Test regular expressions live with match highlighting, capture groups and replace.

M↓

Markdown Preview

Write Markdown and see it rendered live, GitHub-style. Copy or download the HTML.

</>→M↓

HTML to Markdown

Convert HTML into clean GitHub-flavored Markdown, tables and code included.

Web, SQL & network

{css}

CSS Minifier

Minify CSS to make it smaller and faster, or beautify messy CSS to make it readable.

SQL

SQL Formatter

Beautify messy SQL queries for MySQL, PostgreSQL, SQL Server, BigQuery and more.

svg

SVG Optimizer

Shrink SVG files by removing editor junk and simplifying paths. Powered by SVGO.

</>▶

HTML Viewer

Paste or write HTML, CSS and JavaScript and see the result live as you type.

/24

Subnet Calculator

Network, broadcast, host range and mask for any IPv4 or IPv6 subnet, plus subnet splitting.

★ico

Favicon Generator

Make favicon.ico, Apple and Android icons and the HTML tags from an image, text or emoji.

</>

HTML Formatter

Indent messy or minified HTML neatly, including the CSS and JavaScript inside it.

<…>

HTML Minifier

Shrink HTML by removing comments and extra whitespace, and minify inline CSS.

16:9

Aspect Ratio

Find the aspect ratio of any size, or work out a missing width or height.

W→</>

Word to HTML

Paste from Word or Google Docs and get clean HTML without the clutter.

UA

User Agent

See your browser's user agent, version, OS and screen details, or parse any UA string.

⌨ 13

Keycode Finder

Press any key to see its event.key, event.code and keyCode for JavaScript.

755

chmod Calculator

Convert Linux file permissions between checkboxes, numbers like 755 and rwxr-xr-x.

Aa

Contrast Checker

Check text and background colors against WCAG AA and AAA, and get a passing fix.

⇢

cURL Converter

Convert curl commands to JavaScript fetch, Axios or Python requests code.

🐳

Docker Run to Compose

Convert docker run commands to a docker-compose.yml with ports, volumes and env.

Generators

id

UUID Generator

Generate random v4 or time-ordered v7 UUIDs in bulk, and inspect any UUID.

Lo

Lorem Ipsum

Generate lorem ipsum placeholder text as paragraphs, sentences, words or list items.

aZ7

Random String

Generate random strings and tokens of any length, from the characters you choose.

Date & time

⏱

Unix Timestamp

Convert Unix timestamps to dates and back, in any time zone, with a live epoch clock.

<t:>

Discord Timestamp

Make Discord timestamps that show in everyone's own time zone. All 7 formats, one click to copy.

* * *

Cron Generator

Turn cron expressions into plain English, build new ones and see the next run times.