13 Services from coinslot.dev

Parses a 5-field cron expression into a plain-English explanation and returns the next N scheduled run times in UTC.

Validates identifiers using real checksum algorithms: credit cards (Luhn + brand detection), IBANs (mod-97), EAN-13/UPC-A barcodes, ISBN-10/13, and UUIDs (with version detection)

Fetches a public URL and returns its content as clean Markdown along with the page title and metadata in a single API call.

Parses RSS 2.0 or Atom feed XML (or fetches from a URL) into clean JSON with title, items, links, dates, and HTML-stripped summaries

Validates one or more email addresses by checking RFC syntax, live MX DNS records via DNS-over-HTTPS, and disposable-domain screening

Extracts structured, deduplicated entities (emails, URLs, IPv4/IPv6, phone numbers, dates) from raw text with occurrence counts

Computes a unified line-based diff of two text strings, returning the unified diff output plus structured change statistics (added/removed/unchanged line counts and hunks).

Converts GitHub-flavored Markdown (tables, fenced code, task lists) to clean HTML with raw inline HTML stripped

Converts HTML documents or fragments into clean, structured Markdown, stripping scripts, styles, and comments.

Converts an array of JSON objects to CSV (with nested keys flattened to dot-path column headers) or converts a CSV string back to an array of JSON objects.

Validates a JSON document against a JSON Schema (draft-07 core subset) and returns all violations with their paths

Convert a timestamp between up to 20 IANA timezones, returning local times, UTC offsets, weekday, and hour-of-day per zone with correct DST handling.

Generates a QR code as a standalone SVG from input text, with configurable error correction level, margin, and dark/light colors.