Dev tools · alternatives · 2026
24 alternatives to Finshir
A coroutines-driven Low & Slow D(D)oS attack imitation
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Finshir launched in 2019; newer entries below may have overtaken it.
- 1
Articles in this series Part I. Iterative ServersPart II. Forking ServersPart III. Pre-forking ServersPart IV. Threaded ServersPart V. Pre-threaded ServersPart VI: poll-based serverPart VII: epoll-…
2019 · unixism.net · its alternatives →
- 2
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 →
- 3
A totally proof-of-concept FoundationDB based network block device backend - dividuum/fdb-nbd
2018 · github.com · its alternatives →
- 4
Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs
2019 · github.com · its alternatives →
- 5
A cross-language, zero-copy coroutine observability framework based on the cTP shared-memory protocol, utilizing lock-free ring buffers for ultra-low overhead state tracing. - lixiasky-back/coroTracer
Mar 2026 · github.com · its alternatives →
- 6
C++14 high performance non-blocking network IO (based on epoll + boost.context) - matt-42/moustique
2018 · github.com · its alternatives →
- 7
An Erlang library for generating adversarial network conditions for QAing distributed applications/systems on a single Linux box. - lostcolony/damocles
2015 · github.com · its alternatives →
- 8
Single header stackful cross-platform coroutine library in pure C. - edubart/minicoro
2021 · github.com · its alternatives →
- 9
Lightweight open-source DDoS traffic monitor. Stdout output, no account required - Flowtriq/ftagent-lite
May 2026 · github.com · its alternatives →
- 10
Anteon (formerly Ddosify): eBPF-based Kubernetes Monitoring and Performance Testing - getanteon/anteon
2022 · github.com · its alternatives →
- 11
Anteon (formerly Ddosify): eBPF-based Kubernetes Monitoring and Performance Testing - getanteon/anteon
2021 · github.com · its alternatives →
- 12
tiny_coro is a lightweight, educational M:N asynchronous runtime written from scratch using C++20 coroutines. It's designed to strip away the complexity of industrial libraries (like Seastar or Folly) to show the core mechanics clearly. Key Technical Features: M:N Scheduling: Maps M coroutines to N kernel threads (Work-Stealing via Chase-Lev deque). Memory Safety: Implements EBR (Epoch-Based Reclamation) to manage memory safely in lock-free structures without GC. Visualizations: I used Manim (the engine behind 3Blue1Brown) to create animations showing exactly how tasks are stolen and…
Feb 2026 · github.com · its alternatives →
- 13
An experimental high-performance DNS query bruteforce tool built with AF_XDP for extremely fast and accurate bulk DNS lookups. - c3l3si4n/pugdns
2025 · github.com · its alternatives →
- 14
Distributed-Lock-as-a-Service implemented on Cloudflare Durable Objects. - losfair/dlock
2022 · github.com · its alternatives →
- 15
High-throughput C11 telemetry engine for Windows x64. Combines 3-6× lossless on-the-fly compression to slash SIEM costs with cyber resilience: zero-allocation hot paths and bounded memory guarantee zero OOM crashes under log storms or DDoS attacks paired with a corruption-resilient file format. Opti
Aug 2026 · github.com · its alternatives →
- 16
We’re building an open-source language layer on top of Go, designed specifically for COBOL-style workloads: Native decimal arithmetic (COBOL-accurate) Record structures and copybook compatibility Batch jobs and transactional orchestration as first-class constructs Sequential / indexed file I/O baked into the runtime Compiles through Go for speed, concurrency, and cloud deployability Think of it as Kotlin for COBOL, or “COBOL on Go” familiar to mainframe engineers, powerful for modern developers. Test Results so far: NIST COBOL-85 validation: 77.61% overall (305/393 tests) NC…
Nov 2025 · github.com · its alternatives →
- 17
A free tool to monitor and implement DMARC
2014 · dmarc.postmarkapp.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
K-Veritas CLI. Contribute to 27-GROUP/kveritas-go development by creating an account on GitHub.
Aug 2026 · github.com · its alternatives →
- 20
Plug-and-play ad-blocking and DNS privacy for Raspberry Pi with Pi-hole + Unbound on NixOS. - wh1le/finite
Jan 2026 · github.com · its alternatives →
- 21
RedForge▲6OSS LLM red-teaming fortress: OWASP, compliance & chaos
2025 · redforge.solvas.ai · its alternatives →
- 22
🌐 Dynamic DNS, DIY, with Cloudflare. Contribute to ctrlaltdev/DIYDDNS development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 23
- 24
Protect against DDoS and other types of abusive behavior
2017 · cloudflare.com · its alternatives →
Also compare
- ZeroHTTPd: A web server to teach Linux performance, with benchmarks alternatives
- Whirlwind – Async concurrent hashmap for Rust alternatives
- A proof-of-concept FoundationDB based network block device backend alternatives
- Coerce – Actor runtime for Rust using async/await and tokio channels alternatives
- I made a zero-copy coroutine tracer to find my scheduler's lost wakeups alternatives
- Moustique – C++14 coroutine-based non-blocking IO on Linux alternatives
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 →