UD5 Toolkit
Emoji Shortcode ↔ Emoji Converter - Online :smile: Translator
Convert between emoji characters and their shortcode representations (e.g., :tada: to 🎉). Supports Slack and GitHub styles.
Markdown to Slack mrkdwn Converter - Online
Markdown to Slack mrkdwn Converter
Convert standard Markdown into Slack's mrkdwn format for messages.
Frequently Asked Questions
Slack mrkdwn is a lightweight markup language used by Slack to format messages. It supports bold, italic, strikethrough, code, links, and lists, but with a slightly different syntax than standard Markdown.
Key differences: bold uses single asterisks
*bold* instead of double, italics use underscores _italic_, strikethrough uses single tildes ~strike~, and links are formatted as <url|text>. Headings are not supported and must be converted to bold or plain text.
Slack's API requires that the characters
&, <, and > be escaped to their HTML entities in regular text to prevent misinterpretation. Our converter does this by default, while leaving code blocks untouched.
Absolutely. The output follows Slack's mrkdwn specification, making it suitable for use in Slack API calls, incoming webhooks, and block kit messages.
Slack mrkdwn does not support embedded images. The tool converts images to links using the syntax
<url|alt text> so you can still share the URL.
UwU / OwO Text Converter – Online Furry Speak Generator
Transform normal sentences into cutesy UwU speak. Customizable intensity. Internet fun.
HTML to Text with Line Breaks - Online Just the Words
Convert HTML to plain text while preserving paragraph breaks. Remove images, links, and scripts. Quick data extraction.
SVG Editor - Online Vector Drawing & Code Tool
Draw and edit SVG vector graphics in the browser. Basic shapes, text, and freehand. Export raw SVG code or as a file. No server, fully local.
SVG Path Point Extractor - Online d to Coordinates
Parse an SVG path’s d attribute and list all the commands and absolute coordinates. Convert relative to absolute. Local.
Text Lines to JSONL Converter - Online Newline Delimited JSON
Turn every line of a text file into a separate JSON object in a JSONL file. Configure key name and add line numbers. Perfect for data importing.
HTML to SVG Converter - Online Render DOM to Vector
Paste an HTML snippet and convert it into an SVG image that visually replicates the DOM. Useful for creating static snapshots. Local canvas rendering.
CSV to GeoJSON Converter - Online Map Data Generator
Map CSV columns with latitude/longitude to GeoJSON points. Create map‑ready data instantly. All local.
Vertical Text Layout Generator - Online writing‑mode CSS
Create vertically oriented text layouts with `writing‑mode`. See the effect and copy the complete CSS. For vertical languages.
Fake Chat Generator - Online Prank Messenger Conversation
Create a fake WhatsApp/iMessage chat screenshot. Customize names, messages, and timestamps. Just for fun.
Digital Signature Sign & Verify - Online Web Crypto
Sign a message with a private key and verify the signature with the public key. Learn digital signature flow.
Data URL to File Downloader - Online Decode & Save
Paste a data: URL and instantly download the file it represents. Supports all MIME types. Simple extraction.
SVG to Icon Font Generator - Online Create Custom Webfont
Upload multiple SVGs and combine them into a single icon font (TTF, WOFF). Also get the CSS classes. Client‑side conversion.
Emoji to CSS Class Generator - Online Icon Font Style
Assign a CSS class to any emoji and generate a snippet that displays the emoji as a background image or pseudo element. Useful for icon systems.
Text Encrypt/Decrypt (Web Crypto) - Online AES & RSA
Encrypt and decrypt text using the browser's Web Crypto API. Supports AES‑GCM and subtle key generation. No server required.
CSS Wave Generator - Online Animated SVG & Keyframes
Create smooth, animated CSS waves (like water or sound) by adjusting amplitude, colors, and speed. Copy the ready‑to‑use SVG/CSS code.
Fake Text Message Generator - Online iMessage/Android Prank
Create a realistic fake text message conversation. Choose iOS or Android style, set contact name, messages, and times. For laughs.
Webcam Recorder - Online Capture Video & Save
Use your webcam to record a video clip and download it as WebM. Adjust resolution. Works offline. Privacy‑friendly.
Webcam Recorder - Online Capture Video & Save
Use your webcam to record a video clip and download it as WebM. Adjust resolution and see a preview. Works offline.
Video Still Frame to GIF – Online Snap & Animate
Extract a few seconds from a video and convert to a short looping GIF. Use browser video decoder.
SVG Line Drawing Animation Generator - Online stroke‑dasharray
Create a 'drawing' effect for any SVG path. Adjust speed and delay. Copy the CSS and SVG code. No JS needed.
What Are My DNS Servers - Online Detect via Browser
Attempt to detect your current DNS resolver IPs using DNS‑leak test queries. Educational. Privacy‑friendly.
Hijri to Gregorian Converter – Online Umm al‑Qura Estimate
Convert dates between Hijri and Gregorian using the Umm al‑Qura algorithm. Approximate local moon sighting may vary.
PNG to ICO Converter - Online Favicon Maker
Convert any PNG image into a proper .ico favicon file with multiple sizes embedded. For website icons. Local.
Color to CIELAB Converter - Online Perceptual Space
Convert hex or RGB to CIELAB L*a*b* values. Understand perceptual lightness and color opponents. Local math.
Text to ISO Date Converter - Online Parse Any Date String
Paste a human‑readable date (like 'next Friday' or 'March 5, 2023') and convert it to ISO 8601 format. Quick and tolerant.
Hijri to Gregorian Date Converter - Online Islamic Calendar
Convert between Gregorian and Hijri (Islamic) dates. Approximate visual reference. Local algorithm.
Julian Date Converter - Online Calendar to JD
Convert a Gregorian calendar date to its Julian Day Number and vice versa. Used in astronomy and mainframe computing.
Gray Code Converter - Online Binary to Reflected Code
Translate between binary and Gray code (reflected binary code). See the bit changes. Useful for digital logic.
Signed Magnitude Converter - Online Negative Binary Numbers
Encode decimal integers into signed magnitude binary representation and decode back. Learn computer arithmetic.