Best Self-Hosted
Personal Finance Apps in 2026
The best self-hosted personal finance apps compared: Cashlytics, Firefly III, Actual Budget, and YNAB alternatives. Free, open-source, and privacy-first — all side by side.
Quick Summary: Which App Is Right for You?
| You want… | Best pick |
|---|---|
| AI assistant + modern UI + free | Cashlytics |
| Automatic budget for annual & periodic expenses | Cashlytics |
| Best envelope/zero-based budgeting | Actual Budget |
| Maximum accounting depth + automation | Firefly III |
| Subscription tracking only | Wallos |
| YNAB without the subscription | Cashlytics or Actual Budget |
| Apple-only premium experience | Copilot Money |
The personal finance app market has never been this competitive — or this divisive. On one end you have polished cloud-hosted subscription tools like YNAB ($109/year) and Copilot Money ($95/year), which give you great UX and automatic bank sync but store your most sensitive financial data on third-party servers. On the other side, a rapidly growing suite of free, open-source, self-hosted apps that bring your financial data exactly where it belongs: on your own infrastructure.
The collapse of Mint in late 2023 left millions of users scrambling for alternatives and accelerated the shift toward self-hosted tools. This guide covers the best self-hosted personal finance apps available in 2026 — what each one does well, who it is best suited for, and how they compare on the features that matter most.
The 5 Best Self-Hosted Personal Finance Apps in 2026
Cashlytics
— Best for: AI Features, Modern UI, Multi-LanguageCashlytics is the newest entrant on this list and one of the few free self-hosted personal finance apps with a built-in conversational AI assistant (optional, OpenAI key required). Built on Next.js 16 and React 19, it aims for a modern interface. Its reserves plan handles periodic expenses: add an annual insurance premium, quarterly car tax, or semi-annual loan repayment, and Cashlytics calculates how much to set aside each month — so you see your true monthly financial picture, not just what hit your account this month.
Free — MIT licensed, no paid tier, no subscription
Docker Compose — low complexity, ~5 minutes
MIT
- •No automatic bank sync (CSV import required, needs an OpenAI key)
- •No envelope/zero-based budgeting methodology
- •Smaller community than Firefly III or Actual Budget
Actual Budget has a glowing reputation as the best open-source replacement for YNAB. With approximately 25,400 GitHub stars and monthly releases, it has the most active community of any self-hosted finance app on this list. Its zero-based, envelope budgeting methodology is implemented more faithfully than any other open-source alternative, and its local-first architecture — full offline support, optional end-to-end encrypted sync — is genuinely innovative.
Free — MIT licensed, no paid tier, no subscription
Docker Compose — low-to-medium complexity
MIT
- •No native AI features
- •Multi-user support is limited — not designed for household shared budgeting
- •No native mobile app (PWA only)
Firefly III is the oldest and most feature-complete personal finance manager in the open-source self-hosted space. Eight years of development have produced a tool with double-entry bookkeeping, a powerful rule engine, extensive reporting, piggy bank savings goals, and a JSON REST API that enables deep custom integrations. The Home Assistant integration added in 2025 has made it popular with home-lab users.
Free — AGPL-3.0 licensed
Docker Compose (multi-service) — medium-to-high complexity
AGPL-3.0
- •Steep learning curve — double-entry bookkeeping confuses many users
- •No native mobile app (third-party apps only, quality varies)
- •No built-in AI features
- •Complex multi-service Docker setup
Wallos is not a personal finance app — it is a subscription tracker. But it is the best subscription tracker in the self-hosted space, and for users who specifically need visibility into recurring expenses without the overhead of a full finance platform, it fills that role very well. Automatic logo fetching, multi-currency support, and impressive notification channel breadth make it a clean, focused tool.
Free — GPL-3.0 licensed
Docker Compose — very low complexity
GPL-3.0
- •Subscriptions only — no income, expense, budget, or account tracking
- •No AI features
- •No CSV import
- •Multi-user support is limited
YNAB is included here because it remains the tool most people searching for personal finance alternatives have encountered. YNAB is a polished, cloud-hosted, paid application with excellent UX, automatic bank sync across 10,000+ institutions, and the most refined implementation of zero-based budgeting available in any personal finance app. YNAB Together allows up to 6 household members to share budgets.
$14.99/month or ~$109/year — no free tier after 34-day trial
None — cloud only
Proprietary
- •No self-hosting — cloud only
- •Expensive
- •No multi-currency
- •Cloud-only data storage
- •No conversational AI
What Makes Cashlytics Different
Most finance apps tell you what you spent last month. Cashlytics shows you what your finances actually cost — every month, including the bills that don't arrive every month.
Reserves Plan — Annual & Periodic Costs
The reserves plan (v0.10.0). Add an annual insurance premium, a quarterly loan repayment, or a bi-annual car registration fee — Cashlytics calculates the fixed monthly amount to set aside for each one. A €600/year insurance policy appears as €50/month. You see your real financial burden — not just what lands in your account this month.
Conversational AI Financial Assistant
Ask questions about your own financial data in plain language: “How much did I spend on groceries last quarter?” or “Can I afford a 400 euro purchase this month?” The optional built-in AI assistant — powered by OpenAI, API key required — answers from your actual transaction history and can create entries after you approve a preview.
Fully Self-Hosted, Optional Cloud AI
Deploy Cashlytics on your own server with a single Docker Compose command. Your transaction data stays on your infrastructure. No third-party sync service, no analytics calling home, no vendor lock-in. The only exception is the optional AI features (assistant, receipt scanner, CSV import): once you set an OpenAI API key, the relevant requests are sent to OpenAI. Exchange rates are fetched from the Frankfurter API (rates only).
Multi-User with Private Data Spaces
Several people can use one Cashlytics instance — each with fully isolated income, expense, and account data. Turn off single-user mode to allow registration (only do this on a trusted network). Ideal for couples or families who share a server but manage separate finances.
Multi-Currency & Multi-Language (EN / DE)
Track accounts and transactions in different currencies with daily live exchange rates across 21 currencies. The interface is fully available in English and German; further languages can be contributed as translation files. One of the few self-hosted finance apps built with DACH users in mind.
CSV Import with Staged Review
Import transactions from any bank that exports CSV (English, German and Danish column names are recognised, other headers can be mapped manually; requires an OpenAI API key). Cashlytics stages imports for review before committing — you catch duplicates, fix categories, and confirm each batch.
Push Notifications for Upcoming Bills
Get web-push notifications ahead of upcoming payments — so you are not caught off guard when the bill hits your account.
Installable PWA — Works Like a Native App
Install Cashlytics on your phone or desktop straight from the browser. No app store required. The PWA delivers a native-feeling experience on any device you already own; pages you visited stay readable offline (read-only, cached up to 7 days).
Cashlytics vs The Field
| Feature | CashlyticsYour pick | Others (combined) |
|---|---|---|
| Price | Free | Free / $109/year |
| Open Source | MIT | MIT / AGPL / GPL / Proprietary |
| Self-Hosted | ✅ | ✅ |
| AI Assistant | Yes — conversational (optional, OpenAI key) | ❌ |
| Conversational AI | ✅ | ❌ |
| Periodic Expense Budgeting | Reserves plan: fixed monthly amount per bill | Manual only / Not available |
| Envelope Budgeting | ❌ | Actual Budget, YNAB |
| Bank Sync | ❌ | Actual Budget, YNAB |
| REST API | Read-only v1 with API tokens | Firefly III (full) |
| Multi-User | Private data per user | Varies |
| Multi-Currency | ✅ | Most |
| Multi-Language | EN / DE | Varies |
| Push Notifications | ✅ | Wallos, YNAB |
| Document Upload | ✅ | ❌ |
| Setup Complexity | Low — ~5 minutes | Low to High |
How to Choose the Right Self-Hosted Finance App
Start with your primary use case. If you care about budgeting methodology — specifically zero-based, every-dollar-has-a-job budgeting — Actual Budget is the clear winner in the free self-hosted category. For comprehensive accounting depth with a rule engine and API, Firefly III. For optional AI assistance and a modern interface, Cashlytics. For subscriptions only, Wallos.
Consider your technical comfort level. Wallos and Cashlytics have the lowest setup barriers — single Docker Compose files, minimal configuration, ready in minutes. Actual Budget is slightly more involved but well-documented. Firefly III requires the most configuration work, especially if you want the Data Importer companion service running.
Think about privacy versus convenience. Bank sync (Actual Budget, YNAB) is a genuine convenience — transactions appear automatically. But it requires connecting to bank aggregator services. Self-hosted CSV import (Cashlytics, Firefly III) is more manual but keeps your bank credentials and transaction data within your control.
All of the self-hosted options here are free. Unlike YNAB or Copilot Money, Cashlytics, Actual Budget, Firefly III, and Wallos cost nothing beyond your server infrastructure. For users already self-hosting other services, adding any of these to an existing Docker environment is nearly zero marginal cost.
Start Managing Your Finances — For Free, Forever
Take full control of your personal finances with Cashlytics — a free, open-source, self-hosted budget app with optional AI assistance. No subscription required. Your data stays on your server unless you enable the optional OpenAI-backed AI features. Just you and your finances, finally aligned.
Common Questions
Frequently Asked Questions
The best free self-hosted personal finance app depends on your priorities. For optional AI features and a modern UI, Cashlytics is worth a look in 2026. For envelope/zero-based budgeting and automatic bank sync, Actual Budget is the strongest option. For maximum accounting depth and API extensibility, Firefly III. All three are free and MIT or AGPL licensed.
Actual Budget is the most faithful open-source YNAB alternative — it implements the zero-based envelope budgeting methodology that YNAB popularized. Cashlytics is the better choice for users who want AI assistance and privacy-first self-hosting but are not tied to the strict ZBB methodology. Both are free and self-hosted via Docker.
Yes. After Mint's shutdown in late 2023, several self-hosted apps have emerged as replacements. Cashlytics, Actual Budget, and Firefly III all provide the core functionality Mint offered — income and expense tracking, budget categories, account overviews — with the added benefit of complete data ownership on your own server. Cashlytics is the closest to Mint's modern, dashboard-first interface.
The leading self-hosted personal finance apps in 2026 include: Cashlytics (AI + modern UI, free, MIT), Actual Budget (envelope budgeting, bank sync, MIT), Firefly III (double-entry accounting, REST API, AGPL), and Wallos (subscription tracking only, GPL). All deploy via Docker and are completely free.
Firefly III uses double-entry bookkeeping — the same model as professional accounting software — and is built for maximum financial depth and configurability. Actual Budget uses zero-based envelope budgeting and prioritizes local-first offline operation and usability. Firefly III has a steeper learning curve and a more powerful rule engine and API. Actual Budget has a gentler learning curve, built-in bank sync, and a larger active community.
Cashlytics is one of the few free self-hosted personal finance apps with built-in AI features. Its optional conversational AI assistant, powered by OpenAI (API key required), allows natural language queries about your financial data and can create or change entries after you approve a preview. Firefly III has a third-party community plugin for AI transaction categorization, but no native AI. Actual Budget and Wallos have no AI features.
Yes. YNAB allows data export. For envelope budgeting, Actual Budget is the most compatible migration target — the methodology is identical and the community has developed migration guides. For a broader personal finance platform, Cashlytics accepts CSV imports (an OpenAI API key is required), and your exported YNAB transaction history can be imported through the CSV workflow with staged review and duplicate detection.
Yes. Cashlytics' reserves plan (v0.10.0) calculates the monthly amount to set aside for any bill due less often than monthly: annual insurance premiums, quarterly loan repayments, car registration fees, yearly software subscriptions. A €600/year insurance policy shows up as €50/month. You see your true financial burden — not just the bills that land in your account this month. The other apps on this list leave this to manual sinking funds or do not cover it.