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U8String Alternatives
Similar projects and alternatives to U8String
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InfluxDB
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.
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zig
General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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simdjson
Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
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Vrmac
Vrmac Graphics, a cross-platform graphics library for .NET. Supports 3D, 2D, and accelerated video playback. Works on Windows 10 and Raspberry Pi4.
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flamegraph
Easy flamegraphs for Rust projects and everything else, without Perl or pipes <3 (by flamegraph-rs)
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rust_cmd_lib
Common rust command-line macros and utilities, to write shell-script like tasks in a clean, natural and rusty way
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better U8String alternative or higher similarity.
U8String discussion
U8String reviews and mentions
Posts with mentions or reviews of U8String.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-08-11.
- Go structs are copied on assignment (and other things about Go I'd missed)
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Tolower() with AVX-512
Mask add looks neat! I wish there was a way to directly manipulate AVX512's mask registers in .NET intrinsics but for now we have to live with "recognized idioms".
Some months ago I wrote a similar ASCII in UTF-8 upcase/downcase implementation: https://github.com/U8String/U8String/blob/main/Sources/U8Str...
(the unrolled conversion for below vectorization lengths is required as short strings dominate most codebases so handling it fast is important - the switch compiles to jump table and then branchless fall-through to return)
For now it goes as wide as 256b as it already saturates e.g. Zen 3 or 4 which have only 256x4 SIMD units (even though Zen 4 can do fancy 512b shuffles natively and has very good 512b implementation). The core compiles to:
cmp rdx, 32 - Using SIMD for Parallel Processing in Rust
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Scan HTML faster with SIMD instructions – Chrome edition
A little more on topic, if you like SIMD and C#, dotnet/runtime now has an introductory guide to Vector128/256/512 API:
https://github.com/dotnet/runtime/blob/main/docs/coding-guid...
Now, the default syntax can still be a bit more wordy with byref arithmetics than ideal, but you can add a few extension methods to look it closer to Rust's pointer arithmetics: https://github.com/U8String/U8String/blob/main/Sources/U8Str...
- Writing x86 SIMD using x86inc.asm (2017)
- Zig, Rust, and Other Languages
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Was Rust Worth It?
Writing performance-sensitive code in C and calling it via interop used to be the way to go during .NET Framework days but since then has become a performance trap.
Especially for small methods, calling them through interop is a deoptimization because they cannot be inlined, and involve GC frame transition (which you can suppress) as well as an indirect jump and maybe interop stub unless you are statically linking the dependency into your AOT deployment. In case the arguments are not blittable to C - marshalling too.
It is also complicates the publishing process because you have to build both .NET and C parts and then package them together, considering the matrix of [win, linux, macos] x [x64, arm64], it turns into quite an unpleasant experience.
Instead, the recommended approach is just continuing to write C# code, except with pointer and/or ref based code. This is what CoreLib itself does for the most performance-sensitive bits[0]. Naturally, it intentionally looks ugly like in Rust, but you can easily fix it with a few extension methods[1].
[0]: https://github.com/dotnet/runtime/blob/main/src/libraries/Sy...
[1]: https://github.com/U8String/U8String/blob/main/Sources/Share...
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A note from our sponsor - Stream
getstream.io | 10 Jul 2025
Stats
Basic U8String repo stats
7
175
9.2
11 months ago
U8String/U8String is an open source project licensed under MIT License which is an OSI approved license.
The primary programming language of U8String is C#.
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