Balter, a distributed load testing framework for Rust
Balter (Build A Load TestER) is a distributed load/stress testing framework for Rust. It leverages the tokio ecosystem to make it simple to write normal Rust code which auto-scales to meet TPS requirements or to scale indefinitely until a certain error rate. Using Balter is straightforward, and load testing code looks like the following (note that its just normal Rust code, no DSL to learn). use balter::prelude::*; use std::time::Duration; #[tokio::main] async fn main() { my_scenario() .tps(500) .duration(Duration::from_secs(30)) .await; my_scenario() .saturate()…
Balter, a distributed load testing framework for Rust launched on January 25, 2024 with 12 votes, #1,192 of 4,437 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
Balter is a distributed load and stress testing framework for Rust that uses the tokio ecosystem. It allows developers to write load testing scenarios as standard Rust code without learning a specialized language, with automatic scaling to meet specified transactions-per-second targets or saturation points. The framework is designed for Rust developers who need to test system performance and can run tests with defined durations or until reaching specific error rates.
written from the facts on this page · September 2026
From the sources
Distributed stress testing framework in Rust. Contribute to BalterLoadTesting/balter development by creating an account on GitHub.
In the maker’s words, at launch
Balter (Build A Load TestER) is a distributed load/stress testing framework for Rust. It leverages the tokio ecosystem to make it simple to write normal Rust code which auto-scales to meet TPS requirements or to scale indefinitely until a certain error rate. Using Balter is straightforward, and load testing code…
Does a similar job
all alternatives →- BTBalter, the Open Source, composable, distributed load testing framework2024 · balterloadtesting.com · ▲5
Balter, A Load TestER, is a new distributed load testing framework I've been working on for the past few months. It is Open Source, and designed from the ground up to support composability. This allows flexibility in the kinds of load tests you are able to run, such as fully stressing the system and then automatically turning off services; or the ability to run a background noise test, and then slam the service with traffic. Let me know what you think!
Laminar – Open-Source DataDog + PostHog for LLM Apps, Built in Rust2024 · github.com · ▲203Hey HN, we’re Robert, Din and Temirlan from Laminar (https://www.lmnr.ai), an open-source observability and analytics platform for complex LLM apps. It’s designed to be fast, reliable, and scalable. The stack is RabbitMQ for message queues, Postgres for storage, Clickhouse for analytics, Qdrant for semantic search - all powered by Rust. How is Laminar different from the swarm of other “LLM observability” platforms? On the observability part, we’re focused on handling full execution traces, not just LLM calls. We built a Rust ingestor for OpenTelemetry (Otel) spans with GenAI…
Lstr – A modern, interactive tree command written in Rust2025 · github.com · ▲227Hi HN, (First time poster!) I'm the author of `lstr`. I've always loved the classic Linux `tree` command for its simplicity, but I often found myself wanting more modern features like interactivity and Git integration. So, I decided to build my own version in Rust with a philosophy of being fast, minimalist, and interactive. It was also an excuse to help learn more about Rust\! Here's a quick look at the interactive mode: https://raw.githubusercontent.com/bgreenwell/lstr/main/asset... I've just released v0.2.0 with some features I think this community might find…
Maelstrom – A Hermetic, Clustered Test Runner for Python and Rust2024 · github.com · ▲76Hi 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…
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 20d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗ · launch text quoted in part
Launched alongside, January 2024
the whole month →
Amie▲1,334Turn meeting notes into automated workflows. Handle meetings, summaries, todos and emails (soon) with your AI personal assistant.
Work · 2024 · amie.so
- IM
Sit in Shade - Discover the optimal seat to stay in the shade during your journey. Sit In Shade provides real-time sun exposure data and route visualization.
Life & fun · 2024 · sitinshade.com
