Numary – An open-source, scriptable financial legder
The programmable open source core ledger for fintech - formancehq/ledger
Numary – An open-source, scriptable financial legder launched on July 21, 2021 with 19 votes, #1,251 of 3,502 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.
In plain words
Numary is an open-source financial ledger designed for developers. It provides a scriptable platform for managing complex financial transactions and accounting operations. The tool allows engineers to build custom financial systems with programmability at its core, making it suitable for fintech applications, payment platforms, and companies needing precise ledger functionality. Its open-source nature enables transparency and community contributions.
written from the facts on this page · September 2026
Does a similar job
all alternatives →
An open-source financial ledger API written in Clojure2020 · github.com · ▲125Immutable, scalable, and easy to use ledger service. - hoophq/sequence
- NANumscript, a declarative language to model financial transactions2024 · playground.numscript.org · ▲202
Numscript is a simple, declarative language that helps you model financial transactions. You can do quite a few things with it, such as modeling: * Payments involving vouchers and a user's prepaid balance * Complex funds destination scenario where the customer gets cash back * Configurable user credit balance spending transactions The main idea is to take the pain out of describing of a system dealing with money movements should behave in traditional languages such as JS/TS/Go/Ruby etc, landing an expressive way to model these movements of value. It is voluntarily broad in…
RayApr 2026 · rayfinance.app · ▲298I've been using this daily for 4 months and figured others might find it useful. This is my first open source project so would love any feedback. Ray connects to your bank via Plaid, stores everything in an encrypted local SQLite database, and lets you ask questions about your finances in natural language. No cloud, no account, your data is stored on your machine. Before anything reaches the LLM, all PII is stripped — your name, companies, transaction details are redacted and replaced with tokens, then rehydrated locally in the response. The AI never sees who you are.


Mintable – Roll-your-own Mint clone for managing personal finances2019 · github.com · ▲87🍃 Automate your personal finances – for free, with no ads, and no data collection. - kevinschaich/mintable
More dev tools this month
the category →

open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi 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 · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
Launched alongside, July 2021
the whole month →
Typedream▲1,426No-code site builder, easy as Notion, pretty as Webflow
Dev tools · 2021 · typedream.com


An 8-week founder program inspired by Product Hunt
Life & fun · 2021 · hyper.com

200+ open source alternatives to popular B2B tools
Dev tools · 2021 · btw.so

Het beste casino zonder vergunning voor Nederlandse spelers kiezen? Ontdek waar je op moet letten en hoe je een betrouwbaar platform vindt dat aansluit bij jouw voorkeuren.
Life & fun · 2021 · static.wiki
