Disclosure
Disclosure
Transparency about links, funding, scope, and your data — per FTC guidance.
numlit is free. Some outbound links — for example to language references, books, IDEs or developer tools — may be
affiliate links: if you sign up through them we may earn a commission at no extra cost to you. Paid links are
marked rel="sponsored nofollow".
We only link to things we'd actually use, and a commission never changes what the tool reports.
Scope. numlit models the common numeric-literal forms across C (C23), Rust, Go, Java, Python 3 and JavaScript; integers are exact (BigInt), floats use IEEE-754 binary64, and exotic forms are flagged rather than fully modelled. Lexer corners are subtle — confirm anything unusual against the official language reference and your actual compiler.
Your privacy: this is a static, client-side tool. The literal you type is processed in your browser and is never uploaded — there is no backend and nothing is logged.