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Top 4 Rust memory-safety Projects
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I haven't heard that number before and I'm actually impressed.
For a file-by-file close to literal translation of a memory-unsafe language to Rust, isn't that pretty good?
I was expecting the post-rewrite Bun's unsafe usages to be in the order of magnitude of C2Rust (https://c2rust.com/). I was _not_ expecting it to be in the same ballpark as hand-written Rust.
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zerocopy
Zerocopy makes zero-cost memory manipulation effortless. We write `unsafe` so you don’t have to.
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untrusted
Safe, fast, zero-panic, zero-crashing, zero-allocation parsing of untrusted inputs in Rust. (by briansmith)
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rav2d
AV2 video decoder in Rust — full port of dav2d C logic to memory-safe Rust. 47K lines, 786 tests. Assembly DSP stays via FFI.
Project mention: The AV2 Video Standard Has Released (Final v1.0 Specification) | news.ycombinator.com | 2026-05-31
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Rust memory-safety discussion
Rust memory-safety related posts
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Rust in Android: move fast and fix things
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Upcoming Rust language features for kernel development
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Zerocopy 0.8
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Don't carelessly rely on fixed-size unsigned integers overflow
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How much does Rust's bounds checking cost?
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Question about safety when accessing an array out of bounds
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Some Mistakes Rust Doesn't Catch
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source memory-safety projects in Rust? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | c2rust | 4,714 |
| 2 | zerocopy | 2,328 |
| 3 | untrusted | 215 |
| 4 | rav2d | 3 |
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