Flossx83 - ISO8583 Audit Suit

What it does

Flossx83 2025 is an enterprise-grade, auditable ISO 8583 transaction processing platform. Designed for core banking, regulatory audits, and fintech developers, it offers full-stack financial transaction simulation, tokenization, fraud scoring.

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  Finic – Open source platform for building browser automations2024 · github.com · ▲143

  Last year we launched a project called Psychic that did moderately well on hacker news, but was a commercial failure. We were able to find customers, but none with compelling and overlapping use cases. Everyone who was interested was too early to be a real customer. This was our launch: https://news.ycombinator.com/item?id=36032081 We recently decided to revive and rebrand the project after seeing a sudden spike in interest from people who wanted to connect LLMs to data - but specifically through browsers. It's also a problem we've experienced firsthand, having built scraping…

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  Finstruments - Financial instrument library built with Python2024 · github.com · ▲72

  finstruments is a Python library designed for modeling financial instruments. It comes with the core financial instruments, such as forwards and options, out of the box, as well as position, trade, and portfolio models. finstruments comes with the basic building blocks, making it easy to extend and build new instruments for any asset class. These building blocks also provide the functionality to serialize and deserialize to and from JSON, enabling the ability to store a serialized format in a document database. This library is ideal for quantitative researchers, traders, and developers who…

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  isoMTOMXJun 2026 · ▲5

  MT103 → pacs.008 in seconds. Not weeks.

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  Numary – An open-source, scriptable financial legder2021 · github.com · ▲19

  The programmable open source core ledger for fintech - formancehq/ledger

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  LogSentinel, blockchain-inspired secure audit trail service2017 · logsentinel.com · ▲18
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  Remanent, a Fraud and Risk Mitigation Tool for Web3 (Wallet Identity)2023 · remanent.gg · ▲12

  Hey there HN Community! I’m excited to share some news with you – we’ve recently launched Remanent, a tool that helps web3 companies keep their platforms safe and compliant. Remanent has been built for Web3 projects like Exchanges, Marketplaces, DeFi companies, and more. Anyone can check if a wallet address belongs to the US OFAC Sanctions list, turn on email alerts for future transactions, and generate reports to share with their team. We’ve received a lot of positive feedback from users who’ve tried Remanent, and we would love for you to give it a go as well; be sure to dig into the API…

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  /dev/null▲494

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

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  Run full iOS 16.5 firmware on Android Devices▲474

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 23h ago · github.com

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

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  I'm an airline pilot – I built interactive graphs/globes of my flights▲1,539

  Hey HN! Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history. This globe is probably my favourite so far: https://jameshard.ing/pilot/globes/all If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!

  Life & fun · 2025 · jameshard.ing

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  Chronicle: Cursor for Slides▲1,212

  Stunning presentations with AI. No design skills required.

  AI · 2025 · chroniclehq.com

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  Bubble for native mobile apps (beta)▲1,026

  Build native mobile apps for iOS and Android without code.

  Dev tools · 2025 · bble.io

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  Twenty▲989

  Build your Enterprise CRM with an AI-friendly SDK

  Dev tools · 2025 · twenty.com

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  Pally - AI Relationship Management▲949

  All your connections, across all your socials.

  AI · 2025 · pally.com

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  Workout.cool – Open-source fitness coaching platform▲827

  I was the main contributor to workout.lol, an open-source fitness app to easily build a workout routine. The project had traction (1.4k GitHub stars, 95 forks, ~20K visits/month), but was eventually sold due to video licensing hurdles. The new owner stopped maintaining it, and the repo went abandoned. Over the next 9 months, I sent 15 emails to try to save it : no replies. Feature requests & issues were ignored. The community was left with a "broken" tool let's say. I couldn't just let it die So I built the new version from scratch with the same open-source spirit, but a better…

  Dev tools · 2025 · github.com