nanoid

A tiny, secure, URL-friendly, unique string ID generator for Rust.

0.5.0 22M downloads/mo #2004 most downloaded on crates.io mrdimidium/nanoid

What this package is like to depend on

Last release 4 months ago

13 Apr 2026

Release timing varies

gaps range from 8 days to 5.0 years

Nearly every release is documented

notes for 8 of 8 stable releases

Nothing withdrawn

no release was ever pulled

9 years old

8 releases · first in 2017

1 release in the last 12 months

see the full history below

Release timeline

8 releases · Dec 2017 to Apr 2026

2018 2019 2020 2021 2022 2023 2024 2025 2026

Release Pre-release

Releases

latest 8

0.5.0 13 Apr 2026
Release notes
- Bump rand to 0.9
- Add rngs::thread_local random source (#36)
- format now accepts any FnMut(usize) -> Vec<u8> random generator, enabling seeded and stateful RNGs (#32, #41). Non-capturing fn(usize) -> Vec<u8> callers continue to work unchanged.
- nanoid! macro size argument now accepts any expression, not only a single token (#28)
- Specialized fast path for alphabets whose size is a power of two (#35). Note: for seeded RNGs paired with a power-of-two alphabet (e.g. SAFE, the new HEX_* presets), the number of random bytes consumed per ID has changed — the output for a given seed will differ from 0.4.0.
- Add alphabet::HEX_LOWERCASE and alphabet::HEX_UPPERCASE presets (#39)
- Optional smartstring feature for small-string-optimized output (#29)
- Refreshed CI (GitHub Actions across OS matrix), drop Travis/AppVeyor
- Switched benchmarks to criterion
Open source →
0.4.0 07 Apr 2021
Release notes
- merge #25, from @fundon: bump the rand#0.8
- merge #18, from @svenstaro
- merge #21, from @svenstaro
- merge #19, from @svenstaro
- merge #20, from @svenstaro
- merge #16, from @Exr0n
- merge #15, from @Exr0n
- merge #10, from @nbraud
Open source →
0.3.0 08 Feb 2020
Release notes
- merge #3, from @TheIronBorn: various small improvements
- merge #4, from @delimitry: fix typo in function name
- Replace the ~ to - in alphabet
- Add the common macros
- Refactor structure. Remove pseudo-fast generator. Move format in lib.rs
Open source →
0.2.0 07 Jan 2018
Release notes
- Added support for Windows
- Moved to system randomness generator
Open source →
0.1.3 06 Jan 2018
Release notes
- Renamed the safe alphabet
- Added readme from rustdoc
Open source →
0.1.2 05 Jan 2018
Release notes
- Updated the random number engine.
- Fixed bugs in documentation.
Open source →
0.1.1 04 Jan 2018
Release notes
- Integrated performance tests
- Added example of custom random number generator.
Open source →
0.1.0 26 Dec 2017
Release notes
- Initial release
Open source →

nanoid

What this package is like to depend on

Release timeline

Releases

Every package, every release, already written down.