Life & fun · alternatives · 2026
24 alternatives to Tail Recursion Optimization for the JVM
Optimizer library for tail recursive calls in Java bytecode - Sipkab/jvm-tail-recursion
Tail Recursion Optimization for the JVM is a developer tool that enables efficient tail recursive function calls on Java Virtual Machine platforms. It targets programmers writing recursive code who want to avoid stack… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Tail Recursion Optimization for the JVM launched in 2020; newer entries below may have overtaken it.
- 1
HVM1 (2022): a massively parallel, optimal functional runtime in Rust - HigherOrderCO/HVM1
2022 · github.com · its alternatives →
- 2LT
2013 · blog.paralleluniverse.co · its alternatives →
- 3
a toy jvm in awk. Contribute to rethab/awk-jvm development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 4
I wanted to see how fast an isolated code sandbox could start if I never had to boot a fresh VM. So instead of launching a new microVM per execution, I boot Firecracker once with Python and numpy already loaded, then snapshot the full VM state. Every execution after that creates a new KVM VM backed by a `MAP_PRIVATE` mapping of the snapshot memory, so Linux gives me copy-on-write pages automatically. That means each sandbox starts from an already-running Python process inside a real VM, runs the code, and exits. These are real KVM VMs, not containers: separate guest kernel, separate guest…
Mar 2026 · github.com · its alternatives →
- 5
Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js
2014 · github.com · its alternatives →
- 6
An implementation of a dynamic programming language in Rust. Includes: Parser/Compiler, REPL, Virtual Machine, Bytecode Disassembler This started out as a learning project to teach myself Rust. It has grown into a decently substantial piece of software and I've learned quite a bit in the process! Some neat things: + A garbage collector that can store dynamically sized types without any double-indirection (i.e. I have my own Box implementation with manual alloc/dealloc) + The smart pointer used to reference GCed data is a thin pointer. The ptr metadata needed for DSTs is stored in…
2022 · github.com · its alternatives →
- 7
Show HN: TinyWasm - A tiny WebAssembly Runtime written in Rust Hi HN! I'm excited to share TinyWasm (https://github.com/explodingcamera/tinywasm), a WebAssembly Interpreter I developed for my final university project. The main goal of this project was to deepen my understanding of WebAssembly and interpreter design. TinyWasm successfully passes all the official WebAssembly 1.0 tests and also includes features from future proposals such as like bulk memory operations. Initially more of a research project, TinyWasm focuses on simplicity and portability. It has minimal…
2024 · github.com · its alternatives →
- 8SU
Hello HN, I am Parth. In my experience, the current form of testing automation takes too long. To solve this, I am creating a developer tool to speed up the code-test cycle for Java developers. It has two main parts: Direct Invoke - lets you call any Java function directly, without the need to execute the whole call hierarchy. (e.g. an HTTP endpoint) In my normal coding workflow, I use the “Evaluate Expression” feature inside IntelliJ IDE. I usually put a breakpoint somewhere in the code and after hitting the breakpoint by calling an HTTP api, let the execution remain paused while I explore…
2023 · its alternatives →
- 9
Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
2023 · github.com · its alternatives →
- 10
Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod
2014 · github.com · its alternatives →
- 11
VM with JIT-compiler for ATMega32 written in Rust. Contribute to MackieLoeffel/avr-vm development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 12
A demonstration of ways to implement 'threaded code,' a technique used in Forth and in virtual machines like the JVM. - shadowofneptune/threaded-code-benchmark
2022 · github.com · its alternatives →
- 13
HNSW implementation in Rust. Reference: https://arxiv.org/ftp/arxiv/papers/1603/1603.09320.pdf - swapneel/hnsw-rust
2024 · github.com · its alternatives →
- 14
faster.js is a Babel plugin that compiles idiomatic Javascript to faster, micro-optimized Javascript. - vzhou842/faster.js
2018 · github.com · its alternatives →
- 15
As a personal project I wrote a really tiny Wat 2 Wasm compiler in Go. Mainly for demonstrative and educational purposes. It was tough: I didn't know anything about WebAssembly internals and I'm a newbie with Go... so I tried to document it as much as I could for anyone that would like to approach the quest in the future! It misses a lot of features (that will be gradually implemented). Any feedback is welcomed!! Demo: https://luna-demo.vercel.app
2022 · github.com · its alternatives →
- 16
Serialization code generator for QUICK struct content comparison - CovenantSQL/HashStablePack
2019 · github.com · its alternatives →
- 17AF
Serialization framework with some interesting numbers: 10-20x faster on nested objects than json/protobuf. Technical approach: compile-time codegen (no reflection), compact binary protocol with meta-packing, little-endian layout optimized for modern CPUs. Unique features that other fast serializers don't have: - Cross-language without IDL files (Rust ↔ Python/Java/Go) - Trait object serialization (Box) - Automatic circular reference handling - Schema evolution without coordination Happy to discuss design trade-offs. Benchmarks:…
Oct 2025 · fory.apache.org · its alternatives →
- 18RJ
2020 · refrem.com · its alternatives →
- 19
Compile WebAssembly to JVM and other WASM tools. Contribute to cretz/asmble development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 20
Jssembly is a library that allows you to execute native assembly from Java. - dvx/jssembly
2014 · github.com · its alternatives →
- 21
Wrote this to learn more about the `chumsky` parser combinator library, rustyline, and the `ariadne` error reporting crate. Such a nice DX combo for writing new languages. Still a work in progress, but I thought I'd share :)
2025 · github.com · its alternatives →
- 22
Generate Erlang VM byte code from Haskell. Contribute to kofigumbs/codec-beam development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 23
2017 · github.com · its alternatives →
- 24
An experimental pseudo-random number generator prediction concept. - yutarochan/PRNGPredict
2014 · github.com · its alternatives →
Also compare
- High-order Virtual Machine (HVM) – A Parallel Functional Runtime alternatives
- Lightweight Threads, Channels and Actors for the JVM alternatives
- Awk-JVM – A toy JVM in Awk alternatives
- Sub-millisecond VM sandboxes using CoW memory forking alternatives
- Fast.js – faster reimplementations of native JavaScript functions alternatives
- I'm making a dynamic language in Rust 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 →