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Products that do what Balter, the Open Source, composable, distributed load testing framework does

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!

  1. 1BA

    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()…

    2024 · github.com

  2. 2
    LDRS146

    Open-source loading animations for your next project

    2023

  3. 3
    Loader.io117

    Simple cloud-based load testing for your apps

    2014

  4. 4
    Loaders382

    Delightful loading animations for your next project

    2022

  5. 5
    Clobbr443

    Easy API endpoint load testing without breaking the bank

    2023

  6. 6
    Multiple117

    Load Testing Built for Developers

    2023

  7. 7

    AI-powered load testing & vulnerability scanning in one app

    Jun 2026 · loadster.softority.com

  8. 8OS

    2021 · github.com

  9. 9OS

    I've been working on this for some time now, starting with vm2, then deno-core for 2 years, and recently rewrote it on rusty_v8 with Claude's help. OpenWorkers lets you run untrusted JS in V8 isolates on your own infrastructure. Same DX as Cloudflare Workers, no vendor lock-in. What works today: fetch, KV, Postgres bindings, S3/R2, cron scheduling, crypto.subtle. Self-hosting is a single docker-compose file + Postgres. Would love feedback on the architecture and what feature you'd want next.

    Jan 2026 · openworkers.com

  10. 10
    Offload93

    Offload your test suite to speed up the agent loop

    Mar 2026 · github.com

  11. 11PO
  12. 12GA
  13. 13

    The open-source load tester that tells you why.

    26d ago · prescale.dev

  14. 14SP

    Servicer is a CLI to create and manage services on systemd. I have used pm2 in production and find it easy to use. However a lot of its functionality is specific to node.js, and I would prefer not to run my rust server as a fork of a node process. Systemd on the other hand has most of the things I need, but I found it cumbersome to use. There are a bunch of different commands and configurations- the .service file, systemctl to view status, journald to view logs which make systemd more complex to setup. I had to google for the a template and commands every time. Servicer abstracts this setup…

    2023 · servicer.dev

  15. 15

    Website load testing made easy

    2021

  16. 16
    loadr 4

    Find the breaking point — load testing in one Rust binary

    Jul 2026 · loadr.io

  17. 17

    Create animated loaders and generate production React code

    2020

  18. 18RO

    Hey HN. My name's Matteo and I'm currently a SWE @ Twilio. 1 day at stand-up the question came up if there was an open source solution to something like https://www.runscope.com. I found it super interesting that there was no artillery.io-like YAML/DSL solution out there. So I built one. Why i think this is cool: 1. Companies today run a ton of microservices for event-driven systems. Asserting on the ingress/egress out of a system might not be covered fully by HTTP. I've setup a plugin interface so that I can implement assertions on stuff like file buckets, DBs, queues,…

    2025 · github.com

  19. 19

    HTTP Load Testing Platform for APIs & Web Apps

    Apr 2026 · loadtester.org

  20. 20

    Run many models side by side and fuse the best answer

    Apr 2026 · openrouter.ai

  21. 21IM

    I built BuzzBench because I was frustrated with how complex performance testing tools have become. And I was ending up writing my own scripts to test endpoints and manually check out resource usage at the time of testing. Checkout demo: https://www.youtube.com/watch?v=yAnbZMoQvmQ

    2025 · buzzbench.io

  22. 22

    The ultimate tool for split testing

    2024

  23. 23LA

    Please meet Loadjitsu, my weekend project, years in the making. Over the years while building different apps and sites, I always felt that I need a modern load testing software.Tools like JMeter, ab are not very easy to use and it seems innovation in load testing which is a crucial part of any software release cycle has been ignored. This is my third attempt at making Loadjitsu, I am so glad that I can finaly release this. A bit more about the software 1. Powered by golang you can run load tests for tens of thousands of connections per second on very average hardware. 2. Cross platform, run…

    2022 · loadjitsu.com

  24. 24
    Direktor119

    A/B testing as easy as short URLs

    2019

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