Are there any big projects written in Rust without any use of unsafe code?

1. min-sized-rust

   1 101 8,933 6.2 Rust

   🦀 How to minimize Rust binary size 📦

   

   It did in 2017 when the article was written. Though this changed in 2018 when Rust started using the system allocator by default. The size of the executables are still larger than equivalent programs in C, but there are are various ways to reduce the size when it matters.

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. bonsaidb

   2 25 1,041 6.4 Rust

   A developer-friendly document database that grows with you, written in Rust

   

   I maintain several large codebases that have #![forbid(unsafe)] annotations, which prevent unsafe code from being written in those codebases directly. BonsaiDb clocks in at just shy of 30k LOC, and depends on Nebari which is another 12k LOC. Those two crates make up the bulk of a networked database implementation.

4. nebari

   3 11 268 4.6 Rust

   A pure Rust database implementation using an append-only B-Tree file format.

   

   I maintain several large codebases that have #![forbid(unsafe)] annotations, which prevent unsafe code from being written in those codebases directly. BonsaiDb clocks in at just shy of 30k LOC, and depends on Nebari which is another 12k LOC. Those two crates make up the bulk of a networked database implementation.

5. unsafe-code-guidelines

   4 76 692 4.4

   Forum for discussion about what unsafe code can and can't do

   

   As for resources I am aware of, I'd recommend the chapters in the Rust book on unsafe code, as well as the Unsafe Code Guidelines.

6. diem

   5 15 16,695 0.0 Rust

   Diem’s mission is to build a trusted and innovative financial network that empowers people and businesses around the world.

   

   I believe diem has over 250kLOC and no unsafe code

7. rust

   6 2,828 103,628 10.0 Rust

   Empowering everyone to build reliable and efficient software.

   

   If you want to see how large a binary is without all the backtrace-printing code, there is a hardly-discussed feature, panic_mmediate_abort. On Linux, you could run cargo +nightly build -Zbuild-std=std,panic_abort -Z build-std-features=panic_immediate_abort --release --target=x86_64-unknown-linux-gnu, as mentioned in the link.

8. Voila

   7 13 90 0.0 Rust

   Discontinued Voila is a domain-specific language launched through CLI tool for operating with files and directories in massive amounts in a fast & reliable way. (by Alonely0)

   Voila. It is a domain-specific-language for interacting with large collections of files.

9. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

10. abstreet

    8 59 7,935 4.7 Rust

    Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit

    

    A/B Street, which comprises a UI library, lots of data import pipelines, and traffic simulation. 100k LoC, the only unafe is to make system calls through glow

11. glow

    9 10 1,315 8.0 Rust

    GL on Whatever: a set of bindings to run GL anywhere and avoid target-specific code (by grovesNL)

    

    A/B Street, which comprises a UI library, lots of data import pipelines, and traffic simulation. 100k LoC, the only unafe is to make system calls through glow

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