Source by Jean Pierre Kolb

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JPKCom Developer Tools

Code & Text Tools

Beautify Cheat Sheets Coder Compiler Convertor PRO CSV Editor JSON Editor Lorem Ipsum Markdown Editor Playground Regex Debugger Source Viewer WP Code Generator WYSIWYG Editor

Design & Graphics

Colors Fonts Geopattern Graphic Editor PDF Tools Periodensystem (PSE) Placeholder Service Trianglify UI

AI & SEO

llms.txt Generator Meta Tags Generator robots.txt & Sitemap SEO & GEO Analyzer

Security & Utilities

Cron Job Helper Cryptor (AES-256) DNS, SSL, Redirect & URL Docker/Podman Composer Generator Hash Generator Info Tools IP Tools Mail Header Analyzer PKI Viewer QR Code SSH Proxy Time Converter UUID Generator

About

JPKCom Developer Tools

Free online tools for web developers and designers.

40 Tools available.

Load from URL

Code Editor

W3C Markup Validator
PageSpeed Insights
Structured Data Testing
SSL Server Test
IP Geolocation
Redirect Checker

Keyboard Shortcuts

File Operations

`Ctrl`+`S`	Save file
`Ctrl`+`O`	Open file

Navigation

`Ctrl`+`G`	Go to line
`Ctrl`+`L`	Go to line (alt)
`Ctrl`+`Home`	Go to start
`Ctrl`+`End`	Go to end
`Alt`+`←`/`→`	Word navigation

Search & Replace

`Ctrl`+`F`	Find
`Ctrl`+`H`	Replace
`F3`	Find next
`Shift`+`F3`	Find previous
`Ctrl`+`K`	Find next occurrence

Editing

`Ctrl`+`Z`	Undo
`Ctrl`+`Y`	Redo
`Ctrl`+`D`	Duplicate line
`Ctrl`+`Shift`+`K`	Delete line
`Tab`	Indent
`Shift`+`Tab`	Outdent
`Ctrl`+`/`	Toggle comment
`Alt`+`↑`/`↓`	Move line up/down

Selection

`Ctrl`+`A`	Select all
`Ctrl`+`Shift`+`L`	Select all occurrences
`Alt`+`Click`	Add cursor
`Ctrl`+`Alt`+`↑`/`↓`	Add cursor above/below

Code Folding

`Ctrl`+`Shift`+`[`	Fold
`Ctrl`+`Shift`+`]`	Unfold
`Alt`+`0`	Fold all
`Alt`+`Shift`+`0`	Unfold all

HTML Preview

Scripts off

Extract from HTML

Links Images Scripts Stylesheets Headings

Remove duplicates

Result

Snapshots

Snapshots are stored in this browser (code, language and file name). One is also taken automatically before edited code is replaced. Up to are kept.

Go to line

Line number

Editor Settings

Font Size

px

Tab Size

Theme

Word wrap

Show invisible characters

Show indent guides

Show line numbers

Highlight active line

Autocomplete

Syntax validation (linting)

Text/Markdown Preview

Source by Jean Pierre Kolb. Imprint/Privacy Policy. ACE Editor, JS Beautifier, html-to-markdown, markdown-it and highlight.js.