32 stable releases (14 major)

15.1.0 Apr 29, 2022
15.0.0 May 15, 2020
14.3.0 Mar 3, 2020
14.1.0 Dec 16, 2019
1.0.0 Apr 17, 2017

#73 in Data structures

Download history 135370/week @ 2025-11-26 160157/week @ 2025-12-03 158126/week @ 2025-12-10 142940/week @ 2025-12-17 62004/week @ 2025-12-24 81191/week @ 2025-12-31 150116/week @ 2026-01-07 163897/week @ 2026-01-14 189949/week @ 2026-01-21 189453/week @ 2026-01-28 206865/week @ 2026-02-04 192421/week @ 2026-02-11 207978/week @ 2026-02-18 208667/week @ 2026-02-25 302906/week @ 2026-03-04 257216/week @ 2026-03-11

1,010,600 downloads per month
Used in 2,249 crates (183 directly)

MPL-2.0+

525KB
12K SLoC

im-rs

Crate Status

Blazing fast immutable collection datatypes for Rust.

Comes in two versions: im (thread safe) and im-rc (fast but not thread safe).

Documentation

Licence

Copyright 2017 Bodil Stokke

This software is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

Dependencies

~0.7–2.8MB
~59K SLoC