DevKit Free Online Developer Tools

v0.9.0Portfolio

Format, encode, test, compare, and inspect code and data locally in your browser. Choose a tool below to get started.

18 tools available · 3 in development

Text Tools

3 tools

Notepad

Simple text editor with tabs

Regex Tester

Test and debug regular expressions

Markdown

Write and preview markdown

Formatters

4 tools

JSON Formatter

Format and validate JSON

SQL Formatter

Format and beautify SQL queries

CSS Minifier

Minify and prettify CSS

HTML Formatter

Format and validate HTML

Encoding Tools

5 tools

URL Encoder

Encode and decode URLs

Base64

Encode and decode Base64 strings

HTML Entity

Encode and decode HTML entities

URL Parser

Parse URLs and edit query params

JWT Decoder

Decode JWT tokens

Diff Tools

1 tool

Diff Tool

Compare two texts side by side

Misc

5 tools

Color Converter

Convert between color formats

Hash Generator

Generate hash values

Timestamp

Convert timestamps

Cron Expression

Parse and build cron expressions

Queens

One queen per row, column and region

◈ Coming soon ◈

◈Network Tools

3 planned

CORS Tester

Test CORS headers for any URL

SOON

Headers Inspector

Inspect HTTP request/response headers

SOON

IP Lookup

Get info about any IP address

SOON