Free · Ad-free · No installs

30 dev tools.
One tab. Zero installs.

Convert, encode, hash, parse — everything you Google “json to csv online” for,
but actually fast and ad-free.

JSON→CSVlive preview

name,role,joined
"Alice","Engineer",2021
"Bob","Designer",2022

Edit the JSON on the left — try it now

⚡

Data Format

JSON ↔ CSV

Convert JSON arrays to CSV and back.

JSON ↔ YAML

Convert JSON to YAML and YAML to JSON.

JSON ↔ XML

Convert JSON objects to XML and back.

CSV ↔ TSV

Convert comma-separated to tab-separated values.

JSON ↔ Query String

Convert JSON objects to URL query strings and back.

JSON Formatter / Minifier

Pretty-print or minify JSON. Validates syntax on the fly.

JSON → TypeScript Types

Generate TypeScript interfaces from a JSON object.

JSON Schema Generator

Generate a JSON Schema from any JSON document.

🔤

Encoding

Base64 Encode / Decode

Encode text or decode Base64 strings instantly.

URL Encode / Decode

Percent-encode or decode URL components.

HTML Entity Encode / Decode

Escape or unescape HTML entities.

Hex ↔ ASCII

Convert text to hexadecimal and hex back to ASCII.

Number Base Converter

Convert numbers between binary, decimal, hex, and octal.

Unicode Escape ↔ Characters

Convert Unicode escape sequences to characters and back.

🔐

Crypto & Hash

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.

JWT Decoder

Decode JWT tokens and inspect header, payload, signature.

UUID v4 Generator

Generate cryptographically random UUID v4 identifiers.

Password Generator

Generate strong, random passwords with custom rules.

Bcrypt Hash Generator

Hash passwords with bcrypt client-side (cost factor configurable).

📝

Text Tools

Regex Tester

Test regular expressions with live match highlighting.

Text Diff Viewer

Compare two text blocks and see differences side by side.

Lorem Ipsum Generator

Generate placeholder Latin text by paragraphs or words.

Slugify

Convert any text to a URL-safe slug.

Case Converter

Convert text between camelCase, snake_case, kebab-case, PascalCase, and TITLE CASE.

🌐

Web Dev

CSS Unit Converter

Convert between px, rem, em, and % with a configurable base font size.

Color Picker & Converter

Pick colors and convert between HEX, RGB, HSL, and OKLCH.

Cron Expression Parser

Parse cron expressions and preview the next 5 scheduled runs.

HTTP Status Codes

Searchable reference for all HTTP status codes with descriptions.

SVG Optimizer

Minify SVG files by removing comments, metadata, and whitespace.

.env → JSON