Dev tools · alternatives · 2026
24 alternatives to Catzilla - The FastAPI Killer
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Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
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A few months ago, I benchmarked FastAPI on an i9 MacBook Pro. I couldn't believe my eyes. A primary REST endpoint to `sum` two integers took 6 milliseconds to evaluate. It is okay if you are targeting a server in another city, but it should be less when your client and server apps are running on the same machine. FastAPI would have bottleneck-ed the inference of our lightweight UForm neural networks recently trending on HN under the title "Beating OpenAI CLIP with 100x less data and compute". (Thank you all for the kind words!) So I wrote another library. It has been a while since I have…
2023 · github.com · its alternatives →
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Hello everyone! I'm currently in a journey to learn and improve my Elixir and Go skills (my daily job uses C++) and looking through my backlog for projects to take on I decided Elixir is the perfect language to write a highly-parallel BitTorrent tracker. So I have spent my free time these last 3 months writing one! Now I think it has enough features to present it to the world (and a docker image to give it a quick try). I know some people see trackers as relics of the past now that DHT and PEX are common but I think they still serve a purpose in today's Internet (purely talking about public…
2025 · github.com · its alternatives →
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Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js
2014 · github.com · its alternatives →
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FastAPI framework, high performance, easy to learn, fast to code, ready for production
2019 · fastapi.tiangolo.com · its alternatives →
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Bitrise Build Hubfree tier, from $89/mo▲176GitHub Actions runners that build 2x faster for your agents
30d ago · bitrise.io · its alternatives →
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BaseRT▲2226.4x faster than llama.cpp, 3.9x faster than MLX
Jul 2026 · basecompute.co · its alternatives →
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The world's fastest apk (android)/java open source decompiler - neocanable/garlic
2025 · github.com · its alternatives →
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Web Speed▲118Hey everyone, I've been working on a tool called Web Speed. It takes web pages full of HTML and parses them into an easily readable sitemap for an AI agent. By ensuring the AI doesn't have to analyze the full HTML from the page or screenshots of the page, it makes the agent a lot cheaper and faster. It's MCP-native, so any AI that supports MCP can run it and take control of your browser for you. There are both “normal” and post-auth versions live on GitHub. What I think is the coolest thing about the project is the global cache of sitemaps. When a user visits a site, it takes the sitemap and…
May 2026 · getwebspeed.io · its alternatives →
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An ultra fast WSGI server for Python 3. Contribute to jamesroberts/fastwsgi development by creating an account on GitHub.
2021 · github.com · its alternatives →
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First HTTP programming language
2025 · httl.dev · its alternatives →
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socketify.py just break the record for Python and now is the fastest Python framework in TechEmPower, is even faster than Golang Fiber that got 5.9 mi req/s https://github.com/cirospaciari/socketify.py https://www.techempower.com/benchmarks/#section=test&runid=1...
2022 · techempower.com · its alternatives →
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An ultra-fast, single-binary MCP server written in Rust as a lightweight alternative to Node.js/Python. - StamManif/mcp-stama
Aug 2026 · github.com · its alternatives →
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I found hping3 and nmap's nping to be far too slow in terms of sending individual, bare-minimum (40-byte) TCP SYN packets; other than inefficient socket I/O, they were also attempting to do far too much unnecessary processing in what should have otherwise been a tight execution loop. Furthermore, none of them were able to handle CIDR notations (i.e., a range of IP addresses) as their source IP parameter. Being intended for embedded devices (e.g., low-power MIPS/Arm-based routers), Blitzping only depends on standard POSIX headers and C11's libc (whether musl or gnu). To that end,…
2024 · github.com · its alternatives →
- 17
I have posted a much earlier version of this over a year ago [0]. Since then a lot has changed. Obviously, the name has changed. This happened for the paper publication [1]. I have also optimized the speed, integrated ISA-L for special cases, limited the compression-ratio-dependent maximum memory consumption, and finally added parallelized CRC32 computation, which adds ~5% overhead no matter the number of cores used. At this point, I am leaning towards calling it production-ready although there are still many ideas for improvements. Redoing the benchmarks of the older Show HN, would look…
2023 · github.com · its alternatives →
- 18
Hi HN, We’ve all accepted the "Python tax"—you trade execution speed for developer happiness. But what if that trade-off was a thing of the past? I just came across BustAPI, and it’s basically a "cheat code" for Python web services. It’s not just another wrapper; it’s a hybrid engine that embeds a Rust (Actix-Web) core directly into the Python runtime. Is this the end of the "slow Python" era? The benchmarks are pretty shocking. I’d love to see someone stress-test this against a production-grade Go or Node.js setup. Repo: https://github.com/GrandpaEJ/BustAPI Benchmarks:…
Dec 2025 · github.com · its alternatives →
- 19
Hi HN! I've spent the last few weeks optimizing the string operations in StringZilla. You'd be surprised how much performance GLibc and the Standard Templates Library of C++ are leaving on the table, especially on Arm and, likely, on RISC-V. I've significantly increased the number of implemented algorithms for different workloads. Searching across English texts on Arm, for example: - is 4.4x faster than STL, - and 16.8x faster in reverse order. The new version of the library now includes a C++ binding largely compatible with the C++ Standard, featuring all 17 overloads of the `replace`…
2024 · github.com · its alternatives →
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FastPhoenix▲10The ultimate Saas boilerplate for the phoenix framework
2025 · fastphoenix.pro · its alternatives →
- 21
The fastest local AI engine for Apple Silicon. 4.2x faster than Ollama, 0.08s cached TTFT, 100% tool calling. 17 tool parsers, prompt cache, reasoning separation, cloud routing. Drop-in OpenAI replacement. Works with Claude Code, Cursor, Aider. - raullenchai/Rapid-MLX
Apr 2026 · github.com · its alternatives →
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MLX.fast▲14Open research network accelerating Poolside's Laguna on Mac
Jul 2026 · yukon.org · its alternatives →
- 24
The Ultimate Cursor Alternative, no API surcharge. BYO Keys.
Oct 2025 · porkicoder.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →