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Open-source repos for finance and fintech

35 repos tagged Finance and fintech, sorted by GitHub stars. Add filters from the other category types to narrow the list.

35repos tagged Finance and fintech

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  1. infiniflow/ragflow

    RAG engine with deep document parsing that answers questions from PDFs, tables and scans with citations.

    RAG and search, Knowledge base, Docker, Operations, Customer support, Legal

    93.4k starsApache-2.0Updated 3 Nov 2026

  2. paperless-ngx/paperless-ngx

    Turns scanned paper and PDFs into a searchable archive with OCR, auto-tagging and rules for sorting incoming documents.

    File storage, Docs and wiki, Docker, Web, Operations, Finance, Legal, Self hosters, Solo founders

    47.6k starsGPL-3.0Updated 3 Nov 2026

  3. juspay/hyperswitch

    Payments orchestration layer in Rust that routes transactions across many processors.

    Payments, Web, Stripe, Engineering, Finance, E-commerce

    45.7k starsApache-2.0Updated 2 Nov 2026

  4. actualbudget/actual

    Local-first envelope budgeting app with bank sync and multi-device support.

    Personal budgeting, Web, Finance, Self hosters

    29.9k starsMITUpdated 3 Nov 2026

  5. firefly-iii/firefly-iii

    Self-hosted personal finance manager with budgets, rules, imports and reports.

    Personal budgeting, Analytics dashboards, Web, Docker, Finance, Self hosters

    25.1k starsAGPL-3.0Updated 3 Nov 2026

  6. Skyvern-AI/skyvern

    Uses LLMs and computer vision to automate browser tasks like form filling and portal downloads.

    AI agents, Workflow automation, Web scraping, Web, Operations, Logistics

    23.3k starsAGPL-3.0Updated 3 Nov 2026

  7. RasaHQ/rasa

    Machine learning framework for building contextual text and voice assistants you host yourself.

    Chatbots, Customer support, Engineering, Healthcare, Self hosters

    21.4k starsApache-2.0Updated 24 Jul 2026

  8. emcie-co/parlant

    Framework for customer-facing LLM agents that follow explicit behaviour guidelines with traceable decisions.

    Chatbots, AI agents, LLM apps, OpenAI, Anthropic, Customer support, SaaS

    18.3k starsApache-2.0Updated 3 Nov 2026

  9. tigerbeetle/tigerbeetle

    Financial transactions database built for high-throughput double-entry accounting.

    Accounting, Payments, Engineering

    17.3k starsApache-2.0Updated 3 Nov 2026

  10. we-promise/sure

    Community-maintained fork of the Maybe personal finance app for tracking net worth and spending.

    Personal budgeting, Analytics dashboards, Web, Docker, Finance, Self hosters

    10.8k starsAGPL-3.0Updated 3 Nov 2026

  11. getlago/lago

    Metering and usage-based billing engine that turns events into invoices.

    Subscription billing, Invoicing, Payments, Web, Stripe, Finance, Engineering, SaaS

    10.8k starsAGPL-3.0Updated 3 Nov 2026

  12. ghostfolio/ghostfolio

    Self-hosted wealth tracker for stocks, ETFs and crypto with portfolio analytics.

    Analytics dashboards, Personal budgeting, Web, Docker, Finance, Data and analytics, Self hosters

    9.6k starsAGPL-3.0Updated 3 Nov 2026

  13. wealthfolio/wealthfolio

    Desktop investment tracker that keeps portfolio data on your own machine.

    Analytics dashboards, Personal budgeting, Finance

    9.3k starsAGPL-3.0Updated 1 Nov 2026

  14. ellite/Wallos

    Self-hosted subscription tracker that shows recurring costs and renewal reminders.

    Personal budgeting, Web, Docker, Finance, Self hosters

    8.8k starsGPL-3.0Updated 2 Nov 2026

  15. apache/nifi

    Visual data-flow tool for moving and transforming data between systems with drag-and-drop processors.

    Workflow automation, Docker, Engineering, Data and analytics, Government

    6.3k starsApache-2.0Updated 3 Nov 2026

  16. beancount/beancount

    Plain-text double-entry accounting language and tools for personal or business books.

    Accounting, Finance

    6.1k starsGPL-2.0Updated 24 Aug 2026

  17. ledger/ledger

    Command-line double-entry accounting system that reads plain-text journals.

    Accounting, Finance

    6.1k starsOtherUpdated 3 Nov 2026

  18. mayswind/ezbookkeeping

    Lightweight self-hosted bookkeeping app for personal and family finances.

    Personal budgeting, Accounting, Web, Docker, Finance, Self hosters

    5.9k starsMITUpdated 2 Nov 2026

  19. killbill/killbill

    Java subscription billing and payments platform with a plugin system.

    Subscription billing, Payments, Invoicing, Web, Finance, Engineering, SaaS

    5.8k starsApache-2.0Updated 29 Oct 2026

  20. hledgerorg/hledger

    Double-entry accounting kept in plain text files, used from the command line, a terminal UI or a web browser.

    Accounting, Finance

    4.8k starsGPL-3.0Updated 3 Nov 2026

  21. Gnucash/gnucash

    Desktop double-entry accounting app for households and small businesses.

    Accounting, Invoicing, Finance, Local business

    4.4k starsOtherUpdated 3 Nov 2026

  22. rotki/rotki

    Local-first portfolio tracker and accounting tool for crypto assets and taxes.

    Accounting, Analytics dashboards, Finance, Crypto and web3

    4.1k starsAGPL-3.0Updated 3 Nov 2026

  23. ananthakumaran/paisa

    Personal finance manager built on ledger files with budgeting and investment dashboards.

    Personal budgeting, Analytics dashboards, Web, Finance, Self hosters

    3.2k starsAGPL-3.0Updated 21 Oct 2026

  24. spliit-app/spliit

    Web app for splitting group expenses and settling who owes whom.

    Personal budgeting, Web, Finance, Travel

    3k starsMITUpdated 22 Oct 2026

  25. beancount/fava

    Web interface for Beancount ledgers with reports, charts and queries.

    Accounting, Analytics dashboards, Web, Finance, Data and analytics, Self hosters

    2.6k starsMITUpdated 1 Nov 2026

  26. Tanq16/ExpenseOwl

    Minimal self-hosted expense tracker with monthly pie-chart summaries.

    Personal budgeting, Web, Docker, Finance, Self hosters

    1.5k starsMITUpdated 18 Oct 2025

  27. oss-apps/split-pro

    Self-hostable Splitwise alternative for shared expenses.

    Personal budgeting, Web, Docker, Finance, Self hosters

    1.5k starsMITUpdated 2 Nov 2026

  28. formancehq/ledger

    Programmable double-entry ledger for tracking money movements in fintech apps.

    Accounting, Payments, Web, Engineering, Finance

    1.5k starsUpdated 3 Nov 2026

  29. arrobalytics/django-ledger

    Double-entry accounting engine for Django apps with financial statements.

    Accounting, Engineering, Finance

    1.4k starsGPL-3.0Updated 30 Oct 2026

  30. spiral-project/ihatemoney

    Simple shared budget manager for groups, trips and housemates.

    Personal budgeting, Web, Finance, Travel, Self hosters

    1.4k starsOtherUpdated 7 Aug 2026

  31. teelur/budget-board

    Self-hosted budgeting app with account sync, goals and spending trends.

    Personal budgeting, Analytics dashboards, Web, Docker, Finance, Self hosters

    896 starsAGPL-3.0Updated 2 Nov 2026

  32. blnkfinance/blnk

    Double-entry ledger service with balances, inflight transactions and reconciliation.

    Accounting, Payments, Web, Engineering, Finance

    579 starsApache-2.0Updated 2 Nov 2026

  33. moov-io/ach

    Go library to read, write and validate US ACH payment files.

    Payments, Engineering, Finance

    570 starsApache-2.0Updated 1 Nov 2026

  34. invopop/gobl

    Go library and JSON schema for structured e-invoices with a global tax database.

    Invoicing, Tax compliance, Finance, Engineering, B2B services

    317 starsApache-2.0Updated 30 Oct 2026

  35. Receipt-Wrangler/receipt-wrangler

    Self-hosted receipt manager that scans receipts and splits costs across people.

    Personal budgeting, Accounting, Web, Docker, Finance, Self hosters

    296 starsUpdated 31 Oct 2026