GadgetHumans API

Generate lorem ipsum placeholder text with a chosen paragraph or word count. Pure CPU, instant.

Convert a colour between hex, RGB, HSL and CMYK. Pure CPU, instant.

Generate a strong random password with a chosen length and character classes, plus its entropy. Pure CPU, instant, and nothing is stored.

Return the caller's IP address and its network classification. Live request.

Check whether text is valid JSON and, when it is not, return the exact parse error position and message. Pure CPU, instant. Use to gate a payload before sending it downstream.

Convert JSON into equivalent YAML, preserving nesting and types. Pure CPU, instant. Use for config files and Kubernetes or CI manifests.

Convert a JSON array of objects into CSV rows with a header line, ready for a spreadsheet or import. Pure CPU, instant.

Convert CSV text into a JSON array of row objects, with an optional custom delimiter and header handling. Pure CPU, instant. Use to turn a pasted table or exported report into structured JSON.

Query a JSON document with a JSONPath expression and return the matched nodes. Pure CPU, instant.

Flatten a deeply nested JSON object into dotted keys, or unflatten dotted keys back into a tree. Pure CPU, instant.

Convert TOML configuration into JSON, including nested tables and arrays. Pure CPU, instant.

Parse XML into an equivalent JSON tree with attributes and text preserved. Pure CPU, instant. Use to read SOAP, RSS or legacy feeds as JSON.

Encode text to RFC 4648 Base32 or decode it back to plaintext. Pure CPU, instant.

Encode text to Base85 (ASCII85) or decode it back. Pure CPU, instant. Use for compact binary-safe payloads inside JSON.

Convert an integer between bases 2 and 36. Pure CPU, instant.

Percent-encode text for a URL or query string, or decode it back, with component or full-URL modes. Pure CPU, instant.

Escape text to HTML entities or decode entities back to plain text and Unicode. Pure CPU, instant. Use to sanitise output or read scraped text.

Render text or bytes as a classic offset, hex and ASCII dump, with a mode to decode a dump back to text. Pure CPU, instant.

Generate ULIDs: 26-character, lexicographically sortable, timestamp-prefixed identifiers. Pure CPU, instant.

Generate NanoID strings of a chosen length, with the entropy per id. Pure CPU, instant. Use for short, collision-safe ids.

Compare two hashes for equality and detect which algorithm produced them by digest length. Pure CPU, instant.

Decode a JWT into its header and payload without verifying the signature, and report expiry and time-to-live. Pure CPU, instant. Use to inspect a token's claims and clock skew.

Turn a title into a clean URL slug: accents removed, punctuation dropped, words lowercased and hyphenated. Pure CPU, instant. Use for CMS paths, filenames and anchors.

Count words, characters, sentences and paragraphs, with reading time and the longest words. Pure CPU, instant.

Rank the most frequent words in a text with counts and share of total, ignoring common stop words. Pure CPU, instant.

Compute edit distance between two strings with a similarity percentage. Pure CPU, instant. Use for fuzzy matching and dedupe.

Convert an integer to Roman numerals or parse a Roman numeral back to an integer, with validation. Pure CPU, instant.

Write a number out in English words, with optional currency and ordinal forms. Pure CPU, instant.

Convert text to Morse code and Morse back to text. Pure CPU, instant.

Apply ROT13 to text in either direction, preserving case. Pure CPU, instant.

Shift letters by any amount to encrypt, or reverse the shift to decrypt, keeping case and punctuation. Pure CPU, instant.

Apply the Atbash substitution (A to Z, Z to A) to encode or decode text. Pure CPU, instant.

Encrypt or decrypt text with a Vigenere keyword cipher. Pure CPU, instant.

Compare two texts line by line and return added, removed and unchanged lines with a unified view. Pure CPU, instant. Use to review what changed between two versions.

Test a regular expression against sample text and return every match, capture group and index. Pure CPU, instant. Use to debug a pattern before shipping it.

Explain a cron expression in plain English and return the next scheduled run times. Pure CPU, instant. Use to verify a schedule before deploying it.

GadgetHumans API request (1 credit)

Look up the MIME type for a file extension, or the usual extensions for a MIME type. Pure CPU, instant.

Compare two semantic version strings and report which is higher. Pure CPU, instant. Use to gate a dependency bump.

Expand a CIDR block into network address, broadcast, netmask, wildcard, usable host range and host count. Pure CPU, instant. Use to plan a subnet or test whether an IP is in range.

Validate an IPv4 address and report whether it is private, loopback, link-local or public, with its integer form. Pure CPU, instant.

Validate an IBAN checksum and return the country, bank code, account number and formatted groups. Pure CPU, instant. Use before storing or paying to an IBAN.

Validate an EU or UK VAT number format and checksum and return the country and normalised form. Pure CPU, instant.

Mask sensitive parts of a string, such as emails or card numbers, keeping a configurable number of characters at each end. Pure CPU, instant.

Parse a phone number into country code, national number, E.164 and national formats, and report whether the length is plausible. Pure CPU, instant.

Convert between Unix timestamps (seconds or milliseconds) and ISO 8601 dates, both directions, with relative age. Pure CPU, instant.

Add or subtract days and months from a date and return the result with weekday, day-of-year and ISO week. Pure CPU, instant.

Look up a timezone by IANA name and return its current UTC offset, DST state and local time. Pure CPU, instant.

Convert a time between IANA timezones and return the UTC offset for each. Pure CPU, instant.

Compute exact age in years, months and days from a birth date, with the next birthday. Pure CPU, instant.