UD5 Toolkit
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.
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.
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.
Bold & Italic Text Generator - Online Unicode Style Tool
Create styled text using Unicode math symbols that render as bold, italic, bold-italic, etc. Copy and paste to social media bios. Local generator.
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.
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.
Online Blackout Poetry Creator – Paste Text & Redact Words
Paste an article and click to black out words, leaving a poem. Print your final creation.
CSV to GeoJSON Converter - Online Map Data Generator
Map CSV columns with latitude/longitude to GeoJSON points. Create map‑ready data instantly. All local.
Diceware Passphrase Generator - Online Secure Word-based Password
Generate strong, memorable passphrases using the Diceware word list (EFF). Choose number of words. Cryprographically random selection. Privacy guaranteed.
Text to SMS Lingo - Online Convert Plain to Chat Speak
Turn your normal message into 2000s SMS language (e.g., 'you' → 'u', 'great' → 'gr8'). Choose intensity level. Pure fun.
XKCD‑Style Password Generator - Online Correct Horse Battery Staple
Create a strong, memorable password using 4 random common words. The famous xkcd method. Local wordlist.
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.
Fake Chat Generator - Online Prank Messenger Conversation
Create a fake WhatsApp/iMessage chat screenshot. Customize names, messages, and timestamps. Just for fun.
Remove HTML Tags - Online Strip Code Cleaner
Paste HTML and instantly remove all tags, leaving only the text content. Optional keep line breaks. Quick cleaning.
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.
Open Graph Generator - Online OG Meta Tags Builder
Build perfect Open Graph meta tags for rich social media previews. Preview how your link will look on Facebook and LinkedIn. Structured data tools for better CTR.
DKIM Record Generator - Online Public Key DNS Entry
Generate a DKIM DNS record from a public key and selector. Check syntax. Improve your domain’s email deliverability.
Is It Down or Just Me - Online Website Uptime Checker
Check if a website is globally reachable or experiencing issues. Status code and latency displayed. Quick browser-side test.
ASCII Art Text Border - Online Decorate Your Message
Wrap your text inside an ASCII art frame or bubble. Multiple designs (speech bubble, box). Copy to clipboard.
Encrypted Note Taker - Online Write & Encrypt in Browser
Write notes that are encrypted in your browser before saving to localStorage. Only accessible with your passphrase.
Capacitor Code Calculator - Online 3-Digit to Picofarad & Nanofarad
Convert 3-digit capacitor codes (like 104, 222) to capacitance value in pF, nF, µF. Also converts back. Useful for reading tiny ceramic capacitors.
@font‑face Generator - Online Custom Web Font Snippet
Upload a font file or specify a URL and generate the complete @font‑face rule with modern formats and font‑display. Copy instantly.
Sine Wave Art Generator - Online Parametric Curves
Generate flowing geometric art by layering sine waves with different frequencies, amplitudes, and colors. Download SVG.
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 to Emoji Cipher - Online Encode Secret Messages
Convert your text into a string of emojis using a simple substitution cipher. Share secret messages that look fun. Decode them with the same tool. All local.
Internet Slang & Acronym Dictionary - Online Quick Lookup
Search a curated dictionary of modern internet acronyms (IMO, TBH, IYKYK) and slang. Simple offline-capable reference. No tracking.
Open Graph Debugger - Online Fetch & Preview Social Card
Enter a URL to see exactly what Open Graph and Twitter card tags will be shown when shared on social media. Fetch from browser.
Cash Stack Visualizer – Online See How Much $1 Billion Looks Like
Enter an amount and see a virtual stack of $100 bills with height comparison to everyday objects.
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.
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.
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.