PrismKit

JSON & data

Encode & convert

Text & writing

Web & design

URLs

URL Builder URL Cleaner UTM Builder Text Fragment Link

Slugify String

Outlook Safelink Decoder SharePoint URL Decoder

HTTP & headers

HTTP Status Codes

MIME Types Cache-Control Builder Cookie Parser HAR Sanitizer

User-Agent Parser

Basic Auth Generator

API Tester WebSocket Tester

Security

CSP Generator Security Headers Generator security.txt Generator

URL Defanger

HTML

HTML Minifier

HTML WYSIWYG Editor HTML Prettifier HTML to Markdown HTML Table to CSV / JSON HTML to XHTML HTML Cleaner

CSS Selector ↔ XPath

SEO

OG Meta Generator robots.txt Generator Web App Manifest Generator Social Share Links

Mailto Link Generator

Email Normalizer Email Parser (.eml)Email Bounce Parser

DMARC Report Analyzer

Browser & device

Device Info

Keyboard Tester

Keycode Info Screen Test Stopwatch & Timer

Markdown

Markdown to HTML

Markdown to Plain Text

Markdown TOC Generator

Markdown Table Generator Markdown Table Formatter Markdown Editor Markdown Format Converter Paste as Markdown Markdown Table to Data

Markdown Lorem Ipsum

EPUB to Markdown

Dev & ops

Security

Generate & media

Calculators & reference

English

Changelog Attributions

PrismKit

URL Defanger

URL Defanger

Runs in your browserLocal

Markdown

Defang or refang URLs, IP addresses and emails for safely sharing threat-intel indicators.

security.txt Generator

Create an RFC 9116 security.txt file with contact, expiry and policy fields, checked for required values.

HTML Minifier

Shrink HTML by removing comments and collapsing whitespace, while leaving pre, textarea, script and style content untouched.