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.
UD5 Toolkit
Instantly convert MySQL ENUM definitions into TypeScript string union types. Perfect for backend → frontend type sync.
// Your union type will appear here
ENUM('value1','value2',...) into a TypeScript string union type like 'value1' | 'value2', optionally wrapped as a named type alias. This keeps your frontend types in sync with database constraints.'admin','user','moderator'. The converter will automatically parse them and generate the union.status ENUM('active','inactive') NOT NULL DEFAULT 'active'.\') are correctly converted to TypeScript's escaped single quotes. Double quotes inside values are preserved. The output is valid TypeScript.UserRole gives type UserRole = 'admin' | 'user';Paste a YAML example and generate a JSON Schema draft that matches the structure. Helps build API specs. Pure client-side inference.
Parse an iCalendar file and output the events as a clean JSON array. For developers integrating calendar data. Client‑side only.
Paste CSV data and instantly get a formatted MediaWiki table code. Ideal for Wikipedia editors and internal wikis.
Generate an Article or BlogPosting structured data with headline, author, and image. For rich blog results.
Convert between scientific notation (a Ă— 10^n) and decimal form. Also supports engineering notation. Instant, local.
Paste the content of an XML sitemap and extract a plain list of all the URLs. For further analysis. Local.
View thousands of digits of Euler's number (e). Click to copy a block. For math enthusiasts.
Transliterate English text into Anglo‑Saxon runes (Futhorc). Different from Elder Futhark. For history and art.
Check if a number of the form 2^p‑1 is a Mersenne prime. Quick Lucas‑Lehmer test simulation for small p.
Convert dates between Hijri and Gregorian using the Umm al‑Qura algorithm. Approximate local moon sighting may vary.
Convert any PNG image into a proper .ico favicon file with multiple sizes embedded. For website icons. Local.
Convert hex or RGB to CIELAB L*a*b* values. Understand perceptual lightness and color opponents. Local math.
Paste a human‑readable date (like 'next Friday' or 'March 5, 2023') and convert it to ISO 8601 format. Quick and tolerant.
Convert any image into colored ASCII art using divs with background colors. Creates a stunning text‑based replica. View & copy HTML.
Paste a list of words or lines and convert all to UPPERCASE or lowercase at once. Also supports title case.
Select multiple images, arrange their order, and merge them into a single PDF document. Works offline in your browser.
Convert between Gregorian and Hijri (Islamic) dates. Approximate visual reference. Local algorithm.
Translate between binary and Gray code (reflected binary code). See the bit changes. Useful for digital logic.
Encode decimal integers into signed magnitude binary representation and decode back. Learn computer arithmetic.
Convert a decimal number to 32-bit single precision IEEE 754 format. See sign, exponent, mantissa bits. Developer tool.
Convert any date into Roman numerals (day‑month‑year) for tattoos or special occasions. Clean and local.
Convert minutes to decimal hours and vice versa. Essential for billing and payroll. Instant conversion with a handy chart.
Upload a logo and generate a pack of favicon sizes plus a .ico file. All conversion in your browser.
Convert between units of absorbed dose and equivalent dose (Gray, Rad, Rem, Sievert). Educational and reference. Local calculation.
Convert power units: watt, kilowatt, horsepower, BTU/h. Quick reference for electrical and mechanical engineering. Browser-based.
Convert torque units between Newton-meter, foot-pound, inch-pound, and more. Essential for mechanics and engineers. Instant local conversion.
Trim a video clip and convert it into an animated GIF. Adjust frame rate and size. Processing stays on your computer for privacy.
Convert audio files between popular formats like WAV, MP3, and OGG directly in the browser. No upload, fast encoding using WebAudio and ffmpeg wasm.
Strip HTML tags and convert web content to plain Markdown. Preserve headings, lists, and links. Perfect for content migration. All processing in browser.
Easily convert JSON data arrays into CSV format for Excel or database import. Handles nested structures with flattening options. All conversions happen locally, no data uploaded.