UD5 Toolkit
Number to Ordinal (1st, 2nd, 3rd) – Online Multi‑Language
Enter a number and see its ordinal representation in English, Spanish, French, etc. Localized rules.
Converters - Format & Unit Conversion
99+ toolsBaking Pan Size Converter – Online Round, Square, Rectangle Volume
Enter an original pan size and find an alternative pan with the same batter volume. Never overflow or underfill.
Ring Size Converter – Online Circumference/Diameter to US, UK, EU
Measure a ring's inside diameter or circumference and convert to US, UK, European, and Japanese sizes.
Cooking Unit Fool‑Proof Converter – Online Easy Scale & Unit Swap
Select ingredient and convert between grams, cups, ounces, etc. with built‑in density estimates. Also scale recipe.
Stove BTU to Temperature Estimator – Online Gas Mark Conversion
Convert between BTU, gas marks, and approximate Fahrenheit temperatures. Understand your burner output.
International Bra Size Converter – Online US, UK, EU, FR, AUS
Convert band and cup sizes between US, UK, European, French, and Australian systems. Accurate shopping abroad.
Slow Cooker Time Converter – Online High to Low & Stovetop
Convert a recipe from oven or stovetop to slow cooker (high/low) and vice versa. Perfect doneness.
Dvorak Layout Text Converter – Online See Typed Words in QWERTY
Type on your QWERTY keyboard and see the text as if you were on a Dvorak layout. Helps learn Dvorak without switching.
Climbing Grade Converter – Online V‑Scale to Font & YDS
Convert climbing difficulty between V‑scale, Fontainebleau, and Yosemite Decimal System. Quick reference for gym climbers.
Yarn Weight Converter – Online Wrap Per Inch & Gauge Tester
Use wrap‑per‑inch (WPI) to identify mystery yarn and see equivalent standard weights (fingering, worsted). Compensate gauge.
Crochet Hook Size Converter – Online US, UK, Metric, JP
Enter a hook size in any system and instantly see the equivalent in all other standards.
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.
Name to NATO Phonetic Call Sign - Online Spell Your Name
Type your name and see it spelled letter-by-letter in the NATO phonetic alphabet. Useful for radio calls or just for fun.
dBm to Watts Converter - Online RF Power Unit Calculator
Convert between dBm, milliwatts, and watts. Simple calculator for RF engineers and WiFi signal analysis. Instant local calculation.
Leather Thickness Conversion – Online oz to mm Chart
Convert between ounces and millimeters for leather. Visual guide to common project thicknesses.
Number to English Words (Decimal) – Online Check Writer
Convert a number like 1234.56 to English words 'one thousand two hundred thirty-four and 56/100'. For checks.
Salary to Hourly Rate Converter – Online with Vacation Factor
Convert annual salary to effective hourly rate considering holidays, vacation, and work hours per week.
JSON to PlantUML Diagram – Online Visualize Data Structure
Paste a JSON object and generate PlantUML code for a class or object diagram. Preview rendered image.
Embroidery Thread Converter - Online DMC to Anchor to Madeira
Find equivalent colors across DMC, Anchor, and Madeira embroidery floss brands. Enter a code to see matches. Local reference database.
CSV to GeoJSON Converter - Online Map Data Generator
Map CSV columns with latitude/longitude to GeoJSON points. Create map‑ready data instantly. All local.
Running Shoe Size Converter - Online US UK EU CM Chart
Convert running shoe sizes between US (men/women), UK, EU, and centimeters. Also includes brand-specific fit notes (general guide).
YAML to JSON Schema Converter - Online OpenAPI Infer Structure
Paste a YAML example and generate a JSON Schema draft that matches the structure. Helps build API specs. Pure client-side inference.
Upside Down Text Converter - Online Flip Letters & Words
Convert any text to upside down (flipped) characters using Unicode mappings. Copy and paste to social media. 100% local, no data sent.
Audio Bit Depth Converter - Online 16‑bit ↔ 24‑bit
Change the bit depth of a WAV file without leaving the browser. Dithering option included. For audio engineers.
Air Fryer Conversion Calculator – Online Oven to Air Fryer
Convert oven recipe temperature and time to air fryer settings. Quick reference.
Markdown to Word Snippet – Online Copy Formatted Text
Render Markdown and copy the formatted output as rich text to paste directly into Word or Google Docs.
Markdown to PDF Converter - Online Export Clean Documents
Write Markdown and instantly print/save as a styled PDF. Choose from multiple themes. Uses browser print function for high-quality output. Local only.
Kitchen Measurement Converter - Online Cups, Grams, Ounces, Tsp
Convert between common cooking units: cups, tbsp, tsp, ml, grams (for water/flour/sugar), ounces. Quick reference for international recipes.
MySQL ENUM to TypeScript Union - Online Schema Converter
Paste a MySQL ENUM definition and get a TypeScript union type string literal. For type‑safe database schemas.
SVG to React Native Component - Online Converter
Paste an SVG and convert it to a React Native component using react‑native‑svg elements. For mobile apps. Local.
Image Format Batch Converter - Online to PNG, WebP, JPEG, AVIF
Drop a folder of images and convert all to the same format at once. Choose quality and download as ZIP. Local only.
Bulk SVG to PNG Converter - Online Batch Export
Convert multiple SVG files to high‑resolution PNGs at once. Set custom dimensions. All local rendering.
SVG to CSS Mask Converter - Online Non‑Destructive Mask
Convert an SVG shape into a CSS mask‑image. Transparent regions become masked. Great for custom image crops. Client‑side.
Text to Unicode HTML Entities – Online Convert All Chars
Type text and get every character converted to &#xxxx; entities. Useful for encoding.
Horse Hands to cm/in Converter - Online Equine Height Tool
Convert horse height from hands to centimeters/inches and back. Essential for equestrian purposes. Quick and local.
Decimal to IEEE 754 Binary - Online Float Representation
Enter a decimal number and see its 32‑bit and 64‑bit IEEE 754 representation. Learn sign, exponent, mantissa.
N‑Triples to JSON‑LD Converter - Online RDF Translation
Paste N‑Triples data and convert it to a compact JSON‑LD representation. Work with linked open data. Local.
JSON‑LD to Turtle Converter - Online RDF Format
Convert JSON‑LD structured data into Turtle (TTL) notation. For semantic web and linked data developers. Client‑side.
Audio Format Converter - Online MP3 WAV FLAC OGG
Change audio files between MP3, WAV, FLAC, and OGG. Choose codec and bitrate. Works completely offline in the browser.
RGBA to CIELAB Converter - Online Full Color Translation
Convert RGBA colors to CIELAB and other advanced color spaces. For fine‑tuning design tokens. Client‑side math.
SRT to WebVTT Converter - Online Subtitle Format Changer
Convert .srt subtitles to .vtt format for web video players. Preserves all timestamps and formatting. Local.
Video to MP3 Extractor - Online Save Audio from Video
Extract the audio track from any video and save as MP3 or WAV. No re‑encoding; fast demux. Client‑side only.
Image to WebP Converter - Online Bulk Optimize
Convert images to WebP format with configurable quality. See file size savings. Batch process multiple files. All local.
SVG to React Component Converter - Online Named Export
Convert an SVG into a named React component with TypeScript. Clean attributes and add props. Dev tool.
INI to JSON Converter - Online Parse Configuration Files
Paste INI content and convert it to a structured JSON object. Handles sections and comments. Client‑side only.
Image to Markdown Base64 - Online Embed Small Pics
Convert a small image into a Base64 data URI and get a Markdown image tag. Perfect for README files and note‑taking apps. Local.
BBCode to HTML Converter - Online Forum Markup
Translate old‑school BBCode into modern HTML. Supports [b], [i], [url], [img], and more. Keep your legacy content alive. Local.
Emoji Shortcode ↔ Emoji Converter - Online :smile: Translator
Convert between emoji characters and their shortcode representations (e.g., :tada: to 🎉). Supports Slack and GitHub styles.
Microwave Wattage Converter – Online Recipe Time Adjuster
Enter the recipe's wattage and your microwave's wattage to convert cooking time. Prevent burnt or cold food.
Advanced Case Converter – Online snake_case camelCase kebab-case
Convert text between various programming case styles. Includes SCREAMING_SNAKE, PascalCase, etc.
Aircraft Tail Number to Phonetic Callsign – Online Convert
Enter a registration (e.g., N123AB) and convert to the standard phonetic callsign. Aviation enthusiast tool.
WebVTT to SRT Converter - Online Subtitle Format Swap
Convert WebVTT subtitle files to SRT and vice versa. Handles formatting conversion and encoding. No upload, pure client-side parsing.
Video to GIF Converter - Online Local Extract Animated Clip
Convert a short video clip to GIF directly in the browser. Trim, resize, and adjust frame rate. No upload required, uses built‑in video decoder. Perfect for memes.
Base64 to CSS @font‑face Converter - Online Embed Font
Paste a Base64 encoded font string and generate the complete @font‑face CSS rule. Inline small fonts easily.
Quartz Cron to Unix Cron Converter - Online Format Translator
Paste a Quartz cron expression (with seconds field) and translate it to standard Unix cron. For devops migrations.
Pug to HTML Converter - Online Compile Indented Templates
Paste Pug template code and compile it to HTML. See the rendered output instantly. For static site devs.
PDF Text Extractor - Online Copy All Text Locally
Drop a PDF and extract the full text content. Processed locally using PDF.js. No upload. Fast and private.
PDF to Image Converter - Online JPG/PNG Export Per Page
Convert each page of a PDF into a separate image. Choose format and resolution. Rendered locally with PDF.js.
Image to AVIF Converter - Online Next‑Gen Compression
Encode images to the modern AVIF format with lossless or lossy compression. See the quality/size trade‑off. Local WASM.
HTML to React JSX Converter - Online Transform Tags
Paste regular HTML and instantly get valid React JSX with proper self‑closing tags and className attributes.