Essential Developer Tools

A privacy-first suite of utilities for modern developers. Format, convert, debug, and generate code directly in your browser.

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Converters
terminal
cURL Converter

Convert cURL to Python, JS, Go...
data_object
CSV to JSON

Convert CSV data to JSON format.
table_view
JSON to CSV

Convert JSON objects to CSV tables.
javascript
JSON to TypeScript

Generate TypeScript interfaces.
transform
YAML <-> JSON

Convert YAML to JSON and vice-versa.
description
HTML to Markdown

Convert HTML to Markdown syntax.
schedule
Timestamp Converter

Epoch to Human-readable dates.
Formatters & Editors
code
JSON Formatter

Prettify, minify, and validate JSON.
database
SQL Formatter

Beautify and format SQL queries.
html
HTML Formatter

Beautify and format HTML code.
edit_note
Markdown Editor

Live Markdown preview and editing.
auto_stories
My Snippets

Save and organize your code snippets.
Encoders & Decoders
link
URL Encoder

Encode/Decode URL parameters.
lock
Base64 Encoder

Base64 encode and decode text.
image_search
Image Tools

Convert, resize, and compress images.
image
Image to Base64

Convert images to Data URIs.
key
JWT Debugger

Decode and inspect JWT tokens.
Security & Identity
fingerprint
UUID Generator New

Generate v1 and v4 UUIDs.
pattern
Hash Generator New

Calculate MD5, SHA-1, SHA-256.
vpn_key
Password Generator New

Create strong, random passwords.
Design & Frontend
palette
CSS & Color Utilities

Color converter, contrast checker and PX/REM.
colorize
Image Color Picker

Extract colors from images (HEX, RGB).
draw
System Design Sketchpad

Sketch architecture diagrams using basic shapes.
Testers & Generators
cloud_sync
API Client

Test HTTP requests like Postman.
manage_search
Regex Tester

Test regular expressions real-time.
lan
Subnet Calculator

Calculate CIDR, masks and IP ranges.
update
Cron Generator

Build cron schedules easily.
difference
Diff Checker

Compare text or code side-by-side.
Playgrounds
javascript
JS Playground

Run JavaScript code in browser.
terminal
Python Playground

Run Python code via Pyodide.
AI & Prompting
smart_toy
Prompt Playground

Craft and test prompts for LLMs.
segment
Text Chunker

Split large text for RAG systems.
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