Fifty tools · live where a source exists
Tools
Each tool does one job. A live tool reads a public source when you ask and shows that answer. A local tool computes on this server and does not call out. An empty result stays empty.
50 of 50
World
- Open-Meteo
Weather
The current temperature and the next three days for a city.
Open → - Open-Meteo
Air
The US AQI and PM2.5 at a city, read when you ask.
Open → - Open
Quakes
Earthquakes from the last day. Leave it blank for the significant ones, or type a place.
Open → - Nager.Date
Holidays
Public holidays left in the year for a country.
Open → - World Bank
Country
Region, capital, income group, and coordinates for a country.
Open → - World Bank
Population
The latest population figure the World Bank published for a country.
Open → - Zippopotam
Postal code
The places a postal code maps to.
Open → - Open
Space station
Where the ISS is right now: latitude, longitude, altitude, and speed.
Open →
Words
Web
- Google Public DNS
DNS
Public DNS answers for a hostname. Add a type, such as MX.
Open → - RDAP
Domain record
Registration status, nameservers, and events for a domain.
Open → - ipwho.is
IP address
Country, region, and network for a public IP you paste.
Open → - The feed you paste
Feed
The latest titles in a public RSS or Atom feed.
Open → - Internet Archive
Wayback
Whether the Internet Archive has a snapshot of a URL.
Open → - GitHub
GitHub user
Name, bio, public repos, and followers for a GitHub login.
Open → - Hacker News
HN user
Karma, about text, and the account date for a Hacker News user.
Open → - Open Food Facts
Barcode
The product name behind a barcode.
Open →
Code
- npm
npm downloads
How many times an npm package was downloaded in the last week.
Open → - crates.io
Crate
Description, latest version, and downloads for a Rust crate.
Open → - RubyGems
Ruby gem
Version and download count for a Ruby gem.
Open → - Packagist
Composer
Description and a published version for a PHP package.
Open → - Crossref
DOI
Title, authors, and the link for a DOI.
Open →
Chain
Local
- Computed here
Address checksum
The EIP-55 checksum of an Ethereum-style address.
Open → - Computed here
SHA-256
The SHA-256 hex of the text you type.
Open → - Open
UUID
A random UUID version 4. Type a count from 1 to 10.
Open → - Open
ULID
A sortable ULID. Type a count from 1 to 10.
Open → - Computed here
JWT decode
The header and payload of a JWT. The signature is not checked.
Open → - Open
Unix time
Now as Unix time, or a timestamp turned into a UTC date.
Open → - Computed here
Cron
What a five-field cron expression means, and the next five UTC runs.
Open → - Computed here
Date gap
Days and weeks between two dates.
Open → - Computed here
Loan payment
The monthly payment for an amount, a yearly rate, and a term.
Open → - Computed here
Subnet
Network, broadcast, and host count for an IPv4 CIDR.
Open → - Computed here
Hex
A number shown in hex, decimal, and binary.
Open → - Computed here
IBAN
Whether an IBAN checksum is valid. It does not ask a bank.
Open → - Computed here
JSON
Pretty-print JSON, or show the parse error.
Open → - Computed here
Base64
Encode text, or decode it when the line starts with decode.
Open → - Computed here
Slug
A URL slug from a title.
Open → - Computed here
Word count
Characters, words, lines, and a reading time at 200 words a minute.
Open → - Computed here
Contrast
WCAG contrast of a hex color against black and white.
Open → - Open
Password
A random password of the length you type, from 12 to 64.
Open → - Computed here
CSV to JSON
Turn a small CSV, with a header row, into JSON.
Open → - Computed here
Regex
What a short JavaScript pattern matches in a sample.
Open → - Computed here
Semver
Which of two semantic versions is newer.
Open → - Computed here
Age
Years, months, and days since a birth date, in UTC.
Open → - Computed here
Percent change
The percent change from one number to another.
Open →