All Developer Tools

26 free, fast, privacy-first tools for developers

No login required100% client-sidePrivacy-first

Data & Format

Transform, validate, and convert data formats

HOT

JSON Formatter

Format, validate, Tree View

JSON Diff

Compare JSON visually

Schema Generator

JSON → TS, Zod, Go, Rust

Regex Lab

Real-time matching

Base64 Encoder

Encode/decode Base64

Escape/Unescape

HTML, URL, JSON, SQL

API & Backend

Tools for API development and testing

HOT

CURL Converter

8 language outputs

Mock API Generator

Instant fake endpoints

URL Parser

Parse URLs & params

HOT

JWT Decoder

Decode & verify tokens

Security & Encoding

Hash, encode, and secure data

Hash Generator

MD5, SHA-256, SHA-512

UUID Generator

v4, ULID, NanoID + bulk

NEW

Password Generator

Secure random passwords

Code & Debugging

Format, beautify, and debug code

NEW

Code Beautifier

JS, CSS, HTML, SQL

Stack Trace Formatter

Parse JS/Python/Java

Error Explainer

Error solutions

Time & System

Timestamp and scheduling utilities

Timestamp Converter

Unix, ISO, live clock

Cron Builder

Visual cron generator

Colors & Design

Color tools for designers and developers

Color Converter

HEX, RGB, HSL + palette

Text & Content

Text processing and content tools

Markdown Preview

Live markdown editor

Text Diff

Compare text files

Lorem Ipsum

Placeholder text

Slug Generator

URL-friendly slugs

Productivity

Save time on repetitive tasks

Naming Converter

camelCase ↔ snake_case

Commit Generator

Conventional commits

Number Converter

Binary, Hex, Octal

More Coming Soon

Image Compressor, CSS Gradient Builder, ASCII Art Generator, and more