Dev tools · alternatives · 2026

24 alternatives to Rotel – Fast and Efficient OpenTelemetry Collection in Rust

Project Page: https://rotel.dev Github: https://github.com/streamfold/rotel Hi HN, Ray and Mike here! We’re building Rotel, a new high performance, resource efficient approach to OpenTelemetry collection. Rotel is open source (Apache License 2.0) and runs as a standalone process and collects telemetry from external processes or other collection agents. It consumes 75% less memory and 50% less CPU in benchmarks https://streamfold.github.io/rotel-otel-loadtests/benchmarks, so it is particularly well-suited for environments where resource…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
OTelBin▲143
Visualize and improve OpenTelemetry collector configurations
2023 · otelbin.io · its alternatives →
2
SeekStorm – open-source sub-millisecond search in Rust▲245
SeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust. - SeekStorm/SeekStorm
2024 · github.com · its alternatives →
3
OpenFang▲255
Open-Source Agent Operating System
Mar 2026 · openfang.sh · its alternatives →
4
OpenLLMetry – OpenTelemetry-based observability for LLMs▲154
Hey HN, Nir, Gal and Tomer here. We’re open-sourcing a set of extensions we’ve built on top of OpenTelemetry that provide visibility into LLM applications - whether it be prompts, vector DBs and more. Here’s the repo: https://github.com/traceloop/openllmetry. There’s already a decent number of tools for LLM observability, some open-source and some not. But what we found was missing for all of them is that they were closed-protocol by design, vendor-locking you to use their observability platform or their proprietary framework for running your LLMs. It’s still early in the…
2023 · github.com · its alternatives →
5
I'm making a dynamic language in Rust▲184
An implementation of a dynamic programming language in Rust. Includes: Parser/Compiler, REPL, Virtual Machine, Bytecode Disassembler This started out as a learning project to teach myself Rust. It has grown into a decently substantial piece of software and I've learned quite a bit in the process! Some neat things: + A garbage collector that can store dynamically sized types without any double-indirection (i.e. I have my own Box implementation with manual alloc/dealloc) + The smart pointer used to reference GCed data is a thin pointer. The ptr metadata needed for DSTs is stored in…
2022 · github.com · its alternatives →
6
A minimal working Rust / SDL2 / WASM browser game▲82
"Game" is a stretch, but I put together this repo containing a pure Rust app which uses SDL2 and compiles to WASM (and can be run in a browser). Older resources were a bit out of date and a bit too verbose for my purposes, so here's a minimal working example.
2024 · github.com · its alternatives →
7
You don't need to adopt new tools for LLM observability▲102
If you've built any web-based app in the last 15 years, you probably used something like Datadog, New Relic, Sentry, etc. to monitor and trace your app, right? Why should it be different when the app you're building happens to be using LLMs? So today we're open-sourcing OpenLLMetry-JS. It's an open protocol and SDK, based on OpenTelemetry, that provides traces and metrics for LLM JS/TS applications and can be connected to any of the 15+ tools that already support OpenTelemetry. Here's the repo: https://github.com/traceloop/openllmetry-js A few months ago we launched…
2024 · github.com · its alternatives →
8
Whirlwind – Async concurrent hashmap for Rust▲140
Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…
2024 · github.com · its alternatives →
9
Spall – WASM-based profiler for JavaScript and C and Odin▲83
[I'm the author] Spall is a web-accessible profiler that I made to help my web-dev friends load gigabyte+ JSON traces without lunch-break-long load times. Recently, Spall got experimental support for auto-tracing with binary traces (along with an in-progress native-port, to give it more memory headroom), which was used to help track down and fix some hard-to-spot lock contention issues in the Odin-language compiler. I demoed it at the Handmade Seattle conference in October, https://guide.handmade-seattle.com/c/2022/spall/, with a head-to-head against Perfetto,…
2023 · gravitymoth.com · its alternatives →
10
A toy ray tracer in Rust▲77
A toy ray tracer in Rust. Contribute to Twinklebear/tray_rust development by creating an account on GitHub.
2015 · github.com · its alternatives →
11
Tweening web visualisation, in Rust – (WASM)▲94
Using wasm-bindgen, and the tween-rs crate
2024 · rustween.mtassoumt.uk · its alternatives →
12SA
Spart – A Rust library for fast spatial search with Python bindings▲31
Hi everyone, I've made an open-source library for fast spatial search in Rust. It's called Spart, and it currently provides the following features: - Five tree implementations: Quadtree, Octree, Kd-tree, R-tree, and R*-tree - Python bindings (`pyspart` on PyPI) - Fast k-nearest neighbor (kNN) and radius search - Bulk data loading for efficient tree construction Project's GitHub repo: https://github.com/habedi/spart
2025 · its alternatives →
13
Open-source serverless security lake powered by Rust + Apache Iceberg▲63
Open source security data lake for threat hunting, detection & response, and cybersecurity analytics at petabyte scale on AWS - matanolabs/matano
2022 · github.com · its alternatives →
14
Distributed Tracing Using OpenTelemetry and ClickHouse▲105
Open source APM: OpenTelemetry traces, metrics, and logs - uptrace/uptrace
2021 · github.com · its alternatives →
15
TraceLLM▲100
OpenTelemetry for production AI applications
Jul 2026 · tracellm.in · its alternatives →
16
Second State VM▲78
High performance secure & portable Rust functions in Node.js
2020 · secondstate.io · its alternatives →
17
Maelstrom – A Hermetic, Clustered Test Runner for Python and Rust▲76
Hi everyone, Maelstrom is a suite of tools for running tests in hermetic micro-containers locally on your machine or distributed across arbitrarily large clusters. Maelstrom currently has test runners for Rust and Python, with more on the way. You might use Maelstrom to run your tests because: * It's easy. Maelstrom functions as a drop-in replacement for cargo test and pytest. In most cases, it just works with your existing tests with minimal configuration. * It's reliable. Maelstrom runs every test hermetically in its own lightweight container, eliminating confusing errors caused by…
2024 · github.com · its alternatives →
18
A SIMD-accelerated noise library in Rust▲73
SIMD noise library for Rust. Contribute to verpeteren/rust-simd-noise development by creating an account on GitHub.
2018 · github.com · its alternatives →
19
Glicol - A Graph-Oriented Live Coding Language/DSP Lib Written in Rust▲58
Graph-oriented live coding language and music/audio DSP library written in Rust - chaosprint/glicol
2022 · github.com · its alternatives →
20
rtoml – a TOML library for Python written in rust▲5
A fast TOML library for python implemented in rust. - samuelcolvin/rtoml
2020 · github.com · its alternatives →
21
I made an open-source Rust program for memory-efficient genomics▲17
My cofounder and I run a startup in oncology, where we handle cancer genomics data. It occurred to me that, thanks to a recent complexity theory result, there's a clever way to run bioinformatics algorithms using far less RAM. I built this Rust engine for running whole-genome workloads in under 100MB of RAM. Runtime is a little longer as a result - O(TlogT) instead of O(T). But it should enable whole-genome analytics on consumer-grade hardware.
Nov 2025 · github.com · its alternatives →
22
Open-source protein and ligand viewer▲32
I just published an open-source protein and ligand viewer. Goal: fast and easy-to-use. Long-term: It's a platform for docking and molecular dynamics. The basic functionality for viewing and inspecting work. I'm currently working on Coot-like electron-density viewing. I'm gradually splitting it into standalone libs, published to crates.io. Some are up already, others are integrated, and will be split off when sufficiently mature and decoupled. Uses parallel execution when able, through thread pools (Rayon), CPU SIMD and Cuda. The default control scheme is non-standard, unless you play video…
2025 · github.com · its alternatives →
23TV
TraceLens Visualizing Distributed Systems▲6
TraceLens is a new user interface and data collector for OpenTelemetry-based systems. Although there are existing tools like Jaeger and Zipkin that offer some visualization capabilities, I wanted a solution that could provide a deeper level of insight. TraceLens is not designed for production environments, but as a debugging tool to help developers better understand the intricacies of their systems. Key features are detailed component diagrams. and sequence diagrams.
2024 · tracelens.io · its alternatives →
24
S3 compatible store with 1M IOPS(4K-R,p99~5ms), BYOC in 5min with rust▲23
Ultra-high performance distributed storage system in the AI era. Powered by Fractal ART engine, Rust-native, io_uring, with multi-protocol (S3 object storage, POSIX FS, ...) - fractalbits-labs/fractalbits
Dec 2025 · github.com · its alternatives →

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