Developer Tools

Everyday developer utilities — JSON/XML formatting and validation, Base64 and URL encoding, hashing, UUIDs, JWT decoding, timestamps, regex testing and more.

27 tools

JSON Formatter

Beautify and indent JSON

JSON Validator

Validate JSON and find errors

JSON Minifier

Minify JSON to the smallest size

XML Formatter

Beautify and indent XML

HTML Viewer

Preview and format HTML

Base64 Encoder

Encode text or files to Base64

Base64 Decoder

Decode Base64 back to text

URL Encoder

Percent-encode URLs and queries

URL Decoder

Decode percent-encoded URLs

UUID Generator

Generate UUIDs in bulk

Hash Generator

SHA-1, SHA-256, SHA-384 & SHA-512

Timestamp Converter

Unix time to human dates and back

JWT Decoder

Decode and inspect JWTs

Lorem Ipsum Generator

Generate placeholder text

Regex Tester

Test regular expressions live

Diff Checker

Compare two texts line by line

Case Converter

Convert text between letter cases

Slugify

Turn text into URL-friendly slugs

CSV to JSON

Convert CSV ↔ JSON

YAML to JSON

Convert YAML ↔ JSON

Number Base Converter

Binary, octal, decimal & hex

Markdown Preview

Render Markdown to HTML live

Query String Parser

Parse URL query params to JSON

Cron Expression Explainer

Cron syntax in plain English

Password Generator

Strong random passwords

JSON to TypeScript

Generate TS interfaces from JSON

Word Counter

Count words, characters & reading time