Accounting, invoicing and subscription tracking software for small businesses and freelancers.
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Actual BudgetAccounting & InvoicingActual Budget is a free, MIT-licensed personal finance app built on envelope budgeting. Data lives in a local SQLite database, and an optional self-hosted server adds multi-device sync, end-to-end encryption and bank sync.Open sourceSelf-hosted
BigcapitalAccounting & InvoicingBigcapital is AGPL-licensed accounting software with a double-entry ledger, sales and purchase invoicing, inventory, multi-currency support, cash and accrual reporting, a REST API and Docker self-hosting. Cloud is listed as coming soon.Open sourceSelf-hosted
ERPNextERP & Business SuitesERPNext is an open-source ERP from Frappe Technologies covering accounting, stock, manufacturing, procurement, sales, projects and POS. It is GPL-3.0, self-hosted with Docker or bench, or run on Frappe Cloud.Open sourceSelf-hostedFreemium
ezBookkeepingAccounting & InvoicingezBookkeeping is a free, MIT-licensed, self-hosted personal finance app written in Go. It records transactions across accounts and currencies, imports bank and app exports, and offers charts, Insights Explorer, an HTTP API and MCP.Open sourceSelf-hosted
Financial FreedomAccounting & InvoicingOpen-source, GPL-3.0 personal finance app from Server Side Up for self-hosting with Docker. The project is archived and on hold, with only an unstable 2024 alpha release, so it suits reading and forking, not daily use.Open sourceSelf-hosted
Firefly IIIAccounting & InvoicingFirefly III is a free, AGPL-licensed personal finance manager you host yourself with Docker or on a PHP server. It records income and expenses in double-entry form, with budgets, rules, recurring transactions, reports and a REST API.Open sourceSelf-hosted
FlexpriceAccounting & InvoicingFlexprice meters usage events in real time and turns them into invoices for usage-based, credit-based and hybrid pricing, with entitlements, wallets, SDKs and Stripe and other integrations. Go backend, AGPLv3 open core, Flexprice Cloud or self-hosted.Open sourceSelf-hostedFreemium
Frappe BooksAccounting & InvoicingFrappe Books is AGPL accounting software from Frappe Technologies with invoicing, inventory, POS and financial reports. The Electron desktop app is archived; the supported version runs on a self-hosted Frappe site in the browser.Open sourceSelf-hosted
Invoice NinjaAccounting & InvoicingSource-available invoicing app for freelancers and small businesses: invoices, quotes, recurring billing, expenses, projects and time tracking, a client portal, REST API and apps, hosted or self-hosted.CommercialSelf-hostedFreemium
Maybe FinanceAccounting & InvoicingSelf-hosted Ruby on Rails app for tracking net worth, accounts, budgets, investments and transactions, with CSV imports, rules, an API and optional AI chat. AGPLv3; archived at the final v0.6.0 release in July 2025.Open sourceSelf-hosted
MeteroidAccounting & InvoicingMeteroid meters usage events and bills them with versioned plans, subscriptions, quotes, credits, invoices and e-invoicing. Rust backend on PostgreSQL, ClickHouse and Kafka, AGPL-3.0 open-source edition, Enterprise images and an EU-hosted cloud.Open sourceSelf-hostedFreemium
MiddayAccounting & InvoicingOpen-source finance app for freelancers and small teams with bank sync, invoicing, time tracking, receipt matching, a document vault and an AI assistant. The hosted service was wound down after Midday joined Ramp in 2026; the source stays public.Open sourceWeb platform
monetrAccounting & Invoicingmonetr is a budgeting app that plans around recurring expenses and paychecks, shows a Free-To-Use balance and forecasts, imports OFX or syncs via Plaid. Hosted at $4 a month or self-hosted with Docker Compose.CommercialSelf-hostedFreemium
OdooERP & Business SuitesOdoo is a web-based suite of business apps from Odoo S.A. The LGPLv3 Community edition covers CRM, sales, invoicing, inventory, manufacturing, POS and website modules on PostgreSQL; Enterprise apps, Studio and hosting are sold per user.Open sourceSelf-hostedFreemium
PaymenterAccounting & InvoicingPaymenter is an MIT-licensed billing platform built for hosting providers. It handles products, recurring invoices, tickets and customer accounts, and provisions services through extensions such as Pterodactyl, Proxmox and Stripe.Open sourceSelf-hostedFreemium
Simple InvoiceAccounting & InvoicingSimple Invoice is a small Next.js invoice generator: you define clients, quotes, invoices, credit notes and receipts in TypeScript and render them as PDFs.CommercialSelf-hosted
solidtimeProject Managementsolidtime is an AGPL-3.0 time tracker built on Laravel with timer, calendar and timesheet, billable rates, goals, reports, invoicing, desktop apps and Toggl, Clockify or Harvest import, as cloud or self-hosted.Open sourceSelf-hostedFreemium
SpliitAccounting & InvoicingSpliit is an MIT-licensed web app for sharing expenses with friends and family: groups, uneven splits, balances, reimbursements, receipts and multiple currencies. Use the free spliit.app instance or self-host with Docker and PostgreSQL.Open sourceSelf-hosted
SureAccounting & InvoicingSure is a community-maintained AGPLv3 fork of Maybe Finance: a Ruby on Rails app for accounts, budgets, bills, loans and investments, self-hosted with Docker or Helm, with optional bank sync, AI chat, an API and an MCP endpoint.Open sourceSelf-hosted
YAFFAAccounting & InvoicingYAFFA is a free, MIT-licensed personal finance web app you host yourself. It records transactions, schedules recurring items, plans budgets, tracks investments and imports CSV and QIF, with optional AI receipt processing.Open sourceSelf-hostedExplore collections with tools relevant to this category, grouped by deployment, source model or workload.
21 matching tools from this category
19 matching tools from this category
18 matching tools from this category
Accounting and invoicing software records income and expenses, issues quotes, invoices and credit notes, and keeps a ledger that a bookkeeper or tax adviser can reconcile. Smaller tools in this space focus on one job, such as generating invoice PDFs or tracking recurring subscriptions and their renewal dates. Unlike payment platforms, these tools document and categorise money rather than move it, and unlike CRM suites they stop at the billing record.
What belongs in this category: A product belongs here when its core output is a financial record such as an invoice, ledger entry, expense or subscription log, rather than payment processing, sales pipeline tracking or project time tracking.
iThub lists 22 tools in Accounting & Invoicing. 18 of 22 are open source, 21 of 22 can be self-hosted, 20 of 22 have a free, freemium or open-source pricing model and 19 of 22 offer an API.
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Use the resources that match your decision stage. Profile data and linked sources were refreshed through November 11, 2026.
