Midday
Open-source AI business financial OS for freelancers and small businesses with bank sync, AI expense categorization, invoicing, and time tracking.
Midday is an open-source AI-powered financial management platform for freelancers, consultants, and small businesses that provides a unified view of bank accounts, invoices, expenses, and project profitability in one dashboard. Unlike traditional accounting tools, Midday combines real-time bank synchronization across multiple accounts with AI-powered expense categorization and a built-in invoice creator, eliminating manual bookkeeping for most common financial workflows. Built with Next.js and fully open-source on GitHub under the AGPL license, Midday can be self-hosted at zero software cost. The hosted cloud version starts at $29 per month for teams that prefer a managed deployment. Founded in 2023, Midday has attracted a growing community of freelance developers and independent agencies.
Key Features
- Real-time bank synchronization across multiple accounts using Plaid for automatic transaction import and live balance tracking
- AI-powered expense categorization automatically sorts imported transactions into tax-relevant business expense categories
- Invoice creator generates professional PDF invoices with auto-calculated totals, line items, and automated due date tracking
- Time tracker records billable hours per project and client for direct conversion into invoice line items without manual entry
- Cash flow overview projects upcoming revenue and expense patterns based on recurring transactions and outstanding invoices
- Open-source AGPL license - fully self-hostable on any cloud provider at zero software cost beyond infrastructure expenses
- Multi-currency support handles invoicing and expense tracking for freelancers working with international clients across time zones
Use Cases
- Freelance developers and designers managing client invoicing, time tracking, and expenses from one integrated dashboard
- Consultants replacing separate spreadsheets and apps with a single financial platform built specifically for service businesses
- Technical founders self-hosting Midday for complete data ownership and privacy without paying ongoing SaaS fees
- Small agencies tracking project profitability and cash flow across multiple active clients without enterprise accounting software
Pros
- AGPL open-source license allows complete self-hosting at zero software cost with full data ownership and no vendor lock-in
- Bank sync plus AI expense categorization eliminates the most tedious manual bookkeeping tasks for service-based businesses
- Invoice and time tracking in one platform removes the need for separate tools like FreshBooks, Toggl, and a spreadsheet
Cons
- AGPL self-hosting requires deploying a Next.js stack - not accessible to non-technical small business owners
- Younger platform with fewer integrations than QuickBooks or FreshBooks for complex accounting and payroll scenarios
- Cloud plan at $29 per month lacks accountant collaboration and tax preparation workflows found in mature alternatives
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