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Dev tools · alternatives · 2026

24 alternatives to Rosso

Hear your guitar pedal before you solder it.

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.

  1. 1
    Haxophone▲526

    I built this during Covid. When I released it, some of the parts went out of stock or skyrocketed in price, no longer making this an economic DIY project. Now that things are getting back to almost normal, I thought I'd share it here and request feedback. This is a very niche project for people who like the same things I do: saxophones, Rust, mechanical keyboards and the Raspberry Pi.

    2022 · github.com · its alternatives →

  2. 2
    I built a synthesizer based on 3D physicsfree tier, from $99/mo▲512

    I've been working on the Anukari 3D Physics Synthesizer for a little over two years now. It's one of the earliest virtual instruments to rely on the GPU for audio processing, which has been incredibly challenging and fun. In the end, predictably, the GUI for manipulating the 3D system actually ended up being a lot more work than the physics simulation. So far I am only selling it direct on my website, which seems to be working well. I hope to turn it into a sustainable business, and ideally I'd have enough revenue to hire folks to help with it. So far it's been 99% a solo project, with…

    2025 · anukari.com · its alternatives →

  3. 3

    This project will compile verilog (a hardware description language) into factorio blueprints. - Redcrafter/verilog2factorio

    2021 · github.com · its alternatives →

  4. 4

    Hello HN, not many will know what this tool is about, but it's launch day and I always dreamed of posting on HN. Let's start! This is a tool for people using eurorack gear. For synth people. What is cool about my tool is that I show the signal flow with a graph. Here's the official press text: After a decade of stagnation in this space we are excited to present patcher.xyz: the modern way to manage everything modular. It’s a tool for professionals, enthusiasts, and casual wigglers. Novadays artists must develop their own means of taking notes, often on paper, since there is no common format…

    2022 · patcher.xyz · its alternatives →

  5. 5IB

    Originally started as a project to restore patterns from now defunct website 808.pixll.de just for myself, but eventually i decided to share it with others. I've seen this website mentioned a couple of times on HN:) Currently it only supports Roland TR-808, but there will be more.

    2025 · drumpatterns.onether.com · its alternatives →

  6. 6IU

    Hi Hacker News, This is definitely out of my comfort zone. I just wanted to show you guys because I'm super proud of it. It's a 100% faithful recreation based off of the schematics, patents, and ROMs that were found online. So please watch the video and tell me what you think https://youtu.be/auOlZXI1VxA The reason why I think this is relevant is because I've been a programmer for 25 years and AI scares the shit out of me. I'm not a programmer anymore. I'm something else now. I don't know what it is but it's multi-disciplinary, and it doesn't involve writing code myself--for…

    Jan 2026 · its alternatives →

  7. 7

    This is a little toy project of mine that lets you simulate digital logic graphs. It was inspired by Minecraft's Redstone and the Piet esolang. It's got some serious drawbacks-- you write circuits as PNGs and simulate them with a Python interface. It's slow to run and slow to experiment with. And it is certainly difficult to use for people with any kind of color blindness. But despite that, I hope this can still be a fun toy!

    2022 · github.com · its alternatives →

  8. 8

    I made a chess engine today, and made it fit within 2KB. I used a variant of MinMax called Negamax, with alpha beta pruning. For the board representation I have used a 120-cell "mailbox". I managed to squeeze in checkmate/stalemate in there, after trimming out some edge cases. I am a great fan of demoscene (computer art subculture) since middle school, and hence it was a ritual i had to perform. For estimating the Elo, I measured 240 automated games against Stockfish Elo levels (1320 to 1600) under fixed depth-5 and some constrained rules, using equal color distribution. Then converted…

    Feb 2026 · github.com · its alternatives →

  9. 9

    To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU. https://blog.vxn.dev/rou2exos-rusted-edition

    2025 · github.com · its alternatives →

  10. 10

    Hi HN, I built Contrapunk because I wanted to play guitar and hear counterpoint harmonies generated in real-time. It takes audio from your guitar, MIDI player or your computer keyboard and generates harmony voices that follow counterpoint rules to generate harmonies. You can choose the key you would like to improvise/play in and the voice leading style and which part of the harmony you would like to play as, as well. macOS DMG: https://github.com/contrapunk-audio/contrapunk/releases/tag/... Source:…

    Apr 2026 · contrapunk.com · its alternatives →

  11. 11

    I’ve been building SFX Engine, an AI audio playground, and just launched a DJ transitions feature. You drop in two songs, and the app generates a clean, beat-matched transition, just like how a DJ would make! Would love any feedback!

    2024 · sfxengine.com · its alternatives →

  12. 12
    Modo▲148

    I’ve built hardware projects for years, and the gap between “I want X” and “parts ordered, files ready to print” always took weeks. Modo compresses that. Describe what you want (e.g. “a portable CO2 monitor with a display and buzzer”) and it generates: - A bill of materials with real components (MPNs, not hallucinated parts) - A printable enclosure generated from actual part dimensions - Wiring diagrams, firmware boilerplate, and assembly instructions - Design validation (power budget, pin conflicts, mechanical fit) Everything streams in real time as each phase completes. The key idea is…

    Jan 2026 · modo.is · its alternatives →

  13. 13

    Hardware prototyping, as simple as vibe-coding

    Jul 2026 · easycircuit.app · its alternatives →

  14. 14

    Just tell your guitar pedal how to sound

    May 2026 · jamtime.ai · its alternatives →

  15. 15

    A chess engine implementation inspired by AlphaZero, using MLX for neural network computations and Monte Carlo Tree Search (MCTS) for move selection.

    2025 · github.com · its alternatives →

  16. 16
    Cadenza▲100

    Professional AI Chord Generator for DAWs

    2024 · cadenzamusic.us · its alternatives →

  17. 17

    Generate guitar tablatures using a constraint solver - aumouvantsillage/TablaZinc

    2020 · github.com · its alternatives →

  18. 18

    Instant code and wiring for your project

    2017 · circuito.io · its alternatives →

  19. 19

    Hi everyone started this project a year ago to generate the CAD for a Jet Engine Axial Compressor. I am now open sourcing this tool that can take in a JSON file with specs and generate the CAD assembly. Still has a lot of work to improve designs but there isn't anything the Open Source community can't accomplish!

    2023 · github.com · its alternatives →

  20. 20

    Found that you can actually run a 35B Qwen model on a Pi with very impressive intelligence and stability. Built connectors for car ODB to read all about car internals, and manufacturer's cloud service for stuff like changing AC or opening/ locking doors. Gave it info such as the full car manual. And then hooked it up with my other agents in our discussion room! So now it can answer car questions such as "when should I add oil and what kind of oil?" and help you fully offline, and when online talk with the agent family that includes all the most powerful models so they know how the car…

    Aug 2026 · github.com · its alternatives →

  21. 21
    Jamboree▲102

    Multiplayer synthesizer

    Jul 2026 · jamboree.space · its alternatives →

  22. 22

    A powerful realtime node-based audio synthesizer. Contribute to monadgroup/axiom development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  23. 23

    Turn feature ideas into stakeholder-ready code prototypes

    Mar 2026 · chordio.com · its alternatives →

  24. 24

    TL;DR - My cofounder Collin and I built an AI version of Digi-Key to help PCB designers find and use parts, except with a way bigger catalog, modern refinement tools, and an AI that can actually read the damn datasheets for you. *The problem* Modern circuit board design is filled with absurdly tedious tasks, where one small mistake can brick a project and cost thousands. The worst (in our opinion) is reading datasheets, which eats up to 25% of the first part of any project: 1. First, you slog through catalogs to find viable parts, using search tools that are still stuck in the dark ages.…

    2025 · zenode.ai · 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 →