Nobel Prizes searches laureate records by first name, last name, and award category. Each result includes the winner's full name, award year, and category, while paid plans add year filtering, motivations, and biographical details.

NSFW Image Detector scans uploaded photos to determine whether an image contains adult content. Send a JPG, PNG, or GIF file up to 10 MB to receive safe and adult content boolean flags.

Number Base Converter converts numbers between any base from 2 to 36, including binary, octal, decimal, and hexadecimal. Pass a value with optional source and target bases to receive the converted string, base names, and exact decimal values.

Number to Words is a number to words API that converts numeric values into written cardinal words and counts whole and fractional digits. Pass any integer or float to get the spelled-out text along with digit counts and locale information.

Nutrition returns the nutrition facts for a generic whole food by name - calories and the core macronutrients per 100 grams straight from the USDA food composition database - plus, on paid plans, a full micronutrient panel and derived nutrition intelligence like calories per gram and the protein,...

Office to PDF converts Word, Excel, PowerPoint, OpenDocument, RTF, text and CSV files to PDF and returns a download link valid for 2 days, with the page count of the result. Upload the file or send its URL. Paid plans can convert only selected pages and set landscape orientation.

Open Source Licenses is a software license API that looks up open source license details by name or identifier. It returns SPDX identifiers, canonical URLs, OSI approval status, legacy IDs, and domain applicability for software, content, or data.

Ovulation Calculator estimates ovulation dates, fertile windows, and provides detailed cycle phase information based on menstrual cycle data.

Palindrome Checker tests whether a string reads the same forwards and backwards, with options to ignore casing, spacing, and punctuation. It returns the boolean verdict, the normalized text, the reversed comparison string, and the length of the longest palindromic sequence.

Palladium Price tracks real-time spot rates for palladium per ounce, gram, and kilogram in USD. It supplies 24-hour price changes and update timestamps, while paid plans add custom currencies and 24-hour hourly history.

Parts Of Speech extracts words from text based on grammatical categories like nouns, verbs, and adjectives. Pass any text passage and a category to receive an array of matching words.

Password Breach Checker tells you whether a password appears in the Pwned Passwords corpus of passwords exposed in data breaches. Send the password or its SHA-1 hash and get a breached flag. Paid plans add how many times it was seen and a risk level.

Password Generator creates random passwords, pronounceable strings, and multi-word passphrases configured by length, complexity, and character sets. It outputs generated strings with character counts and configuration metadata.

Password Strength is a password strength checker API that scores how strong a password is. It returns a strength label and score, a breakdown of the character types used, weak-pattern detection, theoretical entropy in bits, and recommendations to improve it.

PDF Merge combines 2 to 10 PDFs into one file, keeping their order, and returns a download link valid for 2 days. Upload the files or send their URLs. Paid plans add a breakdown of where each source document starts and ends in the merged file.

PDF Page Numbers stamps a page number on every page of a PDF, uploaded or fetched from a URL, and returns a download link to the numbered file. Choose the corner or edge and the font size. Paid plans can also set a label format such as Page 3 of 12, the starting number, and skip a cover page.

PDF to Image renders the pages you choose from a PDF, uploaded or fetched from a URL, as PNG or JPG images and returns a download link for each, valid for 2 days, with its pixel size. The Free plan renders one page per call at 150 dpi; paid plans render up to 10 pages per call and can set the res...

PDF to Text extracts the text layer of a PDF, uploaded or fetched from a URL, and returns it as plain text with the page, word and character counts. Paid plans add the text of each page separately and the document metadata, such as title, author and creation date.

Periodic Table retrieves chemical element data by element name or symbol. Responses include atomic number, category, phase, block, standard group and period positions, and CPK hex colors, with paid plans adding atomic mass and thermal metrics.

Calculate permutations (P(n,r)) and combinations (C(n,r)) for any given values of n and r.