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Top 23 Performance Open-Source Projects
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Gin
Gin is a HTTP web framework written in Go (Golang). It features a Martini-like API with much better performance -- up to 40 times faster. If you need smashing performance, get yourself some Gin.
github.com/gin-gonic/gin
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InfluxDB
InfluxDB โ 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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โญ Fiber on GitHub (35k+ stars)
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In this post I will show you how to implement NestJS๐ป with GraphQL in schema first mode, using Mercurius and the "platform" to Fastify.
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Project mention: Solidjs: Simple and performant reactivity for building user interfaces | news.ycombinator.com | 2025-04-19
Looks like its still in the discussion phase, did not see a timeline but also did not read super close. Did learn about the tanstack-router which I had never heard of, so that was worth looking this up right there ;)
https://github.com/solidjs/solid/discussions/2425
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sharp
High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.
Doing this in Node is simple, we'll use the popular sharp library to resize the image.
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Project mention: ๐ ๏ธ Debugging AOSP System Software Memory Leaks Using LeakCanary | dev.to | 2025-05-15
LeakCanary GitHub AOSP Source Tree Setup Eclipse MAT
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Project mention: Show HN: Nue โ Apps lighter than a React button | news.ycombinator.com | 2025-04-01
Make a demo with react-virtualized[0] and see if it crashes. Hint: It will not[1]. React can easily render 1 million rows with high performance without relying on WASM [2]
Here is the demo of react-virtualized[3], in which I entered 10m as the row count and scrolled to the bottom without crashing.
[0] https://github.com/bvaughn/react-virtualized
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Project mention: Smoke, stress, spike, soak, and recovery: 5 essential load test profiles | news.ycombinator.com | 2024-08-15
Hi everyone!
Long time lurker, first time poster here. I'm the maintainer of Locust (https://github.com/locustio/locust), and this is the second part of my series about load testing.
Let me know what you think!
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For starters, DeadLock should take input from the command-line, therefore, a parser is required. Hence, I am going to use CLI11 to add my custom parameters and take user input from the terminal. Moreover, I will be using {fmt} to stylize and colorize the terminal outputs.
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lazysizes
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
JavaScript Libraries: If you need more control, consider using a JavaScript library like lazysizes.
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It is reportedly used on websites like Langfuse and Million.dev.
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Front-End-Performance-Checklist
๐ฎ The only Front-End Performance Checklist that runs faster than the others
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Atlas
๐ An open and lightweight modification to Windows, designed to optimize performance, privacy and usability.
Project mention: Atlas: A Windows modification to optimize performance, privacy and usability | news.ycombinator.com | 2024-08-11 -
โ๏ธ Nginx Handbook ๐ก Apache ๐ฅ Caddy
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partytown
Relocate resource intensive third-party scripts off of the main thread and into a web worker. ๐
Project mention: Partytown: Run Third-Party Scripts from a Web Worker | news.ycombinator.com | 2024-10-17 -
Nuitka
Nuitka is a Python compiler written in Python. It's fully compatible with Python 2.6, 2.7, 3.4-3.13. You feed it your Python app, it does a lot of clever things, and spits out an executable or extension module.
Project mention: Lisp-stat: Lisp environment for statistical computing | news.ycombinator.com | 2025-06-15In my view, the biggest advantages of ahead-of-time compilation is lower binary size, higher performance, and binary portability (in a sense of being able to copy the binary and run it on another system with same architecture and OS, not in the usual sense of being easy to run to a different system architecture or OS).
It is somewhat unknown that Python itself can be compiled, using Nuitka [0] compiler. It still runs Python code, so the performance increase is not as extreme as one would get from rewriting in a fully statically typed code, but the AOT compiled C code is still faster than the interpreter.
[0] https://nuitka.net/
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systeminformer
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com
Project mention: Show HN: Appstat โ Process Monitor for Windows | news.ycombinator.com | 2025-03-04For advanced end users? why would they ditch: https://systeminformer.sourceforge.io/ ?
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Performance discussion
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IP Sentry (Golang)
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OpenTelemetry for Go: Measuring overhead costs
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Otter v2: A high performance caching library for Go
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10-Year-Old Linux/Android Performance Tool/Service: Guider 3.9.9
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Optimized Fonts in Nuxt
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Redesigned Swift.org is now live
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Tracy profiler new release 0.12.0
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A note from our sponsor - InfluxDB
www.influxdata.com | 25 Jun 2025
Index
What are some of the best open-source Performance projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Gin | 82,795 |
| 2 | Fiber | 36,920 |
| 3 | fastify | 34,012 |
| 4 | solid | 33,797 |
| 5 | sharp | 30,600 |
| 6 | leakcanary | 29,720 |
| 7 | k6 | 28,092 |
| 8 | react-virtualized | 26,834 |
| 9 | locust | 26,341 |
| 10 | {fmt} | 21,944 |
| 11 | ava | 20,787 |
| 12 | DoraemonKit | 20,333 |
| 13 | lazysizes | 17,639 |
| 14 | million | 17,234 |
| 15 | Front-End-Performance-Checklist | 16,922 |
| 16 | inferno | 16,167 |
| 17 | Atlas | 15,819 |
| 18 | nginx-admins-handbook | 13,691 |
| 19 | Pinpoint | 13,647 |
| 20 | partytown | 13,380 |
| 21 | Nuitka | 13,328 |
| 22 | tvm | 12,388 |
| 23 | systeminformer | 12,137 |
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InfluxDB โ 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.
www.influxdata.com