Dev tools · alternatives · 2026
24 alternatives to Smelt — an open source test runner for chip developers
Hey everyone, James from Silogy here. We’re excited to open-source our test runner, Smelt. Smelt is a simple and extensible test runner optimized for chip development workflows. Smelt enables developers to: * Programmatically define numerous test variants * Execute these tests in parallel * Easily analyze test results As chip designs get more complex, the state space that needs to be explored in design verification is exploding. In chip development, it's common to run thousands of tests, each with multiple hyperparameters that result in even more variation. Smelt offers a straightforward…
Smelt is an open-source test runner designed for chip developers to manage complex verification workflows. It allows developers to programmatically generate numerous test variants, execute them in parallel, and analyze… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Smelt — an open source test runner for chip developers launched in 2024; newer entries below may have overtaken it.
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Hi everyone, We’re building an open-source identity and risk management platform and we’ve just released the first chunk of code, a fully customizable KYC flow & UI, to the public. We’ve chosen to use Svelte so our flows would be lightweight (it is ~50kb gzipped). Next up: - Adding forms and components for it to be used as a full onboarding flow. - Releasing an open-source case management dashboard, for manual approval of users. - Releasing an open-source rule engine, to help automate decisions. We’d love to hear your feedback, suggestions, or any question you’ve got. And if the rest of the…
2022 · github.com · its alternatives →
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Minimalist, dependency-free virtual machine sandbox for microcontrollers and other resource-constrained devices. Single C file, no dynamic memory allocations, asynchronous design, pure C99 - ringtailsoftware/uvm32
Dec 2025 · github.com · its alternatives →
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Hi HN — I’m learning Rust and decided to build a universal CLI for running code in many languages. The tool, Run, aims to be a single, minimal dependency utility for: running one-off snippets (from CLI flags), running files, reading and executing piped stdin, and providing language-specific REPLs that you can switch between interactively. I designed it to support both interpreted languages (Python, JS, Ruby, etc.) and compiled languages (Rust, Go, C/C++). It detects languages from flags or file extensions, can compile temporary files for compiled languages, and exposes a unified REPL…
2025 · github.com · its alternatives →
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Fleet is an experimental fast, lightweight, open-source, build tool for Rust. Builds with Fleet enabled are up-to 5x faster! For a production repository (infinyon/fluvio) which we tested, we were able to cut down our incremental build times from 29 seconds down to 9 seconds, boosted by Fleet. We saw even better results on dimensionhq/volt, with our build times cut down from 3 minutes to just 1 minute - a 3x speed improvement! How does fleet work? Fleet works by optimizing your builds using existing tooling available in the Rust ecosystem, including seamlessly integrating sccache,…
2022 · its alternatives →
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Hello HN, I introduce a property-based testing tool for Ruby. Ruby's ease of test-writing and rich ecosystem are widely acclaimed. However, property-based testing is not as widely used as in other languages such as Haskell or Elixir, and I think this is because there is no de facto testing tool. This gem currently not only has the basic functionality of stateless property-based testing but also has the following features: - Support verbose mode that allows you to see its shrinking procedure and algorithms. - Support several concurrency/parallel executions of each test. As of now,…
2024 · github.com · its alternatives →
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I built ChipBuilder to make computer architecture more approachable through interactive puzzles. You start with basic logic gates like AND, OR, and NOT, then gradually combine them into adders, multiplexers, memory, an ALU, and eventually a complete CPU. Once you've built the hardware, you can write assembly programs that run on the processor you created. The game is inspired by courses like Nand2Tetris, but everything runs directly in the browser with a visual circuit editor, simulations, and progressively harder challenges.
Jul 2026 · select.supply · its alternatives →
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We wrote our inference engine on Rust, it is faster than llama cpp in all of the use cases. Your feedback is very welcomed. Written from scratch with idea that you can add support of any kernel and platform.
2025 · github.com · its alternatives →
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A lightweight engine for durable execution / deterministic workflows I built with Rust, wasmtime and the WASM Component Model. Its main use is running reliable, long-running workflows that can automatically resume after failures. Looking for feedback on the approach and potential use cases!
2025 · obeli.sk · its alternatives →
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Hi HN, I’m a chemical engineer and I manage logistics at a refinery down in Texas. Whenever I try to explain downstream operations to people outside the industry (including my kids), I usually get blank stares. I wanted to build something that visualizes the concepts and chemistry of a plant without completely dumbing down the science, so I put together this 5-minute browser game. Here's a simple runthrough: https://www.youtube.com/watch?v=is-moBz6upU. I pushed to get through a full product pathway to show the V-804 replay. I am not a software developer by trade, so I relied…
Mar 2026 · fuelingcuriosity.com · its alternatives →
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An alternative to stack traces for your Go errors. Contribute to bracesdev/errtrace development by creating an account on GitHub.
2023 · github.com · its alternatives →
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Copper is an operating system for robots - build, run, and replay your entire robot deterministically. - Home · copper-project/copper-rs Wiki
2024 · github.com · its alternatives →
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SvelteShip▲122Hey, I built svelteship after long hours trying to find the right tech stack and integrations for my apps. I created it for myself and others with documentation so whenever an idea comes to mind you can get started quickly. It is a batteries-included boilerplate so you can focus on your apps. Any feedback is welcome!
2024 · svelteship.com · its alternatives →
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Hi everyone, Maelstrom is a suite of tools for running tests in hermetic micro-containers locally on your machine or distributed across arbitrarily large clusters. Maelstrom currently has test runners for Rust and Python, with more on the way. You might use Maelstrom to run your tests because: * It's easy. Maelstrom functions as a drop-in replacement for cargo test and pytest. In most cases, it just works with your existing tests with minimal configuration. * It's reliable. Maelstrom runs every test hermetically in its own lightweight container, eliminating confusing errors caused by…
2024 · github.com · its alternatives →
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The core question: how did HP's scientific calculators actually work at the gate level? That rabbit hole led to building one from scratch. The architectural decision everything else follows from: a decimal calculator should store numbers as BCD — one decimal digit per 4-bit nibble. A standard byte-oriented CPU (Z80, 6502) fights that layout constantly. So I designed a small custom CPU in Verilog where 4 bits is the natural data width and memory is nibble addressable. What the project covers: - Custom CPU: Harvard architecture, 12-bit ISA, 8-state execution FSM, hardware stack guard with a…
May 2026 · github.com · its alternatives →
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Coppers is a custom test harnass for Rust that measures the energy usage of your test suite. - ThijsRay/coppers
2022 · github.com · its alternatives →
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I built a CLI tool in Go that extracts structured data (JSON, CSV, Parquet) from messy PDFs and HTML pages. The core idea: LLMs are great at understanding structure but wasteful for bulk data extraction. So smelt uses a two-pass architecture: 1. A fast Go capture layer parses the document and detects table-like regions 2. Those regions (not the whole document) get sent to Claude for schema inference — column names, types, nesting 3. The Go layer then does deterministic extraction using the inferred schema This means the LLM is never in the hot path of actual data processing. It figures out…
Mar 2026 · github.com · its alternatives →
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Hi HN! I’ve been running GitHub Actions workflows for a while, and when GitHub announced the new ubuntu-slim runners as a cheaper alternative to ubuntu-latest, I wanted to migrate—but figuring out which workflows are safe to switch turned out to be surprisingly tedious. You need to check for Docker usage, services, containers, step failures due to missing packages, and whether jobs rely on tools not available in the slim image. So I built gh-slimify, a GitHub CLI extension that automates all of this. It scans your repository, detects which jobs can be migrated, flags incompatible patterns,…
Nov 2025 · github.com · its alternatives →
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Contribute to orch8-io/engine development by creating an account on GitHub.
May 2026 · github.com · its alternatives →
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A digital logic simulation written in C. Contribute to rzscheck/logic development by creating an account on GitHub.
2020 · github.com · its alternatives →
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A pretty (simple) alternative to strace. Contribute to JakWai01/lurk development by creating an account on GitHub.
2022 · github.com · its alternatives →
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- Open-source user onboarding and KYC flow made with Svelte (~50kb) alternatives
- Smelter alternatives
- Tiny VM sandbox in C with apps in Rust, C and Zig alternatives
- Run – a CLI universal code runner I built while learning Rust alternatives
- Smock-It alternatives
- Fleet – Experimental build tool for Rust that’s up to 5x faster 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 →