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.
Tag: Converter - 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.
Hat Size Finder – Online Head Circumference to US/UK Size
Enter your head circumference in cm or inches and get the corresponding hat size in US, UK, and EU scales.
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.
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.
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.
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.
Bird Age Converter - Online Parakeet & Cockatiel to Human
Convert popular pet bird ages (budgie, cockatiel, macaw) to human years. Lifespan reference included. Fun educational tool.
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.
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.
Eye Prescription Converter - Glasses to Contact Lens Rx Tool
Approximate conversion from eyeglass prescription to contact lens power. Uses vertex distance formula. For educational purposes only, consult your optometrist.
Advanced Number Base Converter - Online Bin Oct Dec Hex Custom
Convert numbers between binary, octal, decimal, hex, and any custom base up to 36. With live preview of all bases.
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.
Sentence Case Converter - Online Capitalize After Period
Convert any text to proper sentence case. Capitalize the first letter after every period, question mark, or exclamation.
Color to Tailwind Class Converter - Online Map Hex to closest
Enter any hex color and find the nearest Tailwind CSS color class. Also shows the Tailwind palette shade.
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.
SVG Transform Merger - Online Combine Transforms
Take an SVG element with multiple transform attributes and merge them into a single matrix. Simplify your SVG code locally.
SVG Path Reverser - Online Flip Direction
Reverse the direction of an SVG path so that it draws from end to start. Useful for animation direction. Client‑side.
Air Fryer Conversion Calculator – Online Oven to Air Fryer
Convert oven recipe temperature and time to air fryer settings. Quick reference.
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.
Bionic Reading Converter - Online Bold First Letters
Transform any text into the Bionic Reading® format that bolds the first few letters of each word. Improve reading speed.
Bulk SVG to PNG Converter - Online Batch Export
Convert multiple SVG files to high‑resolution PNGs at once. Set custom dimensions. All local rendering.
Recipe Servings Converter - Online Scale Ingredients
Enter a recipe and scale the ingredient quantities up or down by servings. Supports fractions and mixed units. Cooking helper.
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.
OKLCH Color Picker & Converter - Online Perceptive Color
Select colors in the OKLCH space with lightness, chroma, and hue. Convert to hex, RGB, and CSS oklch(). Perceptually uniform gradients.
URL Query String to JSON – Online Parse & Format
Paste a full URL or query string and instantly get a pretty JSON object. Parse arrays and nested keys.
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.
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.
Emoji to Image Converter - Online Download Emoji as PNG
Pick any emoji and download it as a high‑resolution PNG image with transparent background. For social media or icons.
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.
Advanced Case Converter – Online snake_case camelCase kebab-case
Convert text between various programming case styles. Includes SCREAMING_SNAKE, PascalCase, etc.
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.
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.
Text to Handwriting Converter - Online Realistic Pen Notes
Type notes and convert them into a realistic handwriting image with varied pen styles, ink colors, and paper backgrounds. Perfect for study notes.
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.