Browse Open Source Alternatives

DoubleZero

AGPL-3.0

00 is an open-source email API and infrastructure solution that allows developers to own and control their email stack.

Hyvor Relay

AGPL-3.0

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.

Sessy

Unknown

Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.

Tuta

GPL-3.0

Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Twake Mail

AGPL-3.0

Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.

MDMA

MIT

Convert multi-step forms into conversational AI experiences. Users ask questions, get clarifications, and complete complex processes effortlessly with 98% reliability.

OpenWork

MIT

Desktop app supporting 50+ LLMs with custom keys, team sharing, and browser automation. Build reusable AI agents with built-in guardrails for enterprise use.

ActivityWatch

MPL-2.0

Free open-source time tracker that automatically monitors your device usage. Cross-platform support with local data storage for complete privacy.

Hackatime

MIT

Free, open-source coding time tracker compatible with VS Code, JetBrains IDEs, vim, emacs and more. No limits, no paywalls - your data stays yours forever.

Sol

MIT

A modern macOS launcher that provides instant access to applications, utilities, and system functions through an elegant and efficient interface.

SolidTime

AGPL-3.0

Seamlessly track time across multiple projects, generate insightful reports, and optimize your open source contributions.

TimeScribe

GPL-3.0

Advanced time tracking and productivity analytics tool that captures detailed work patterns, generates comprehensive reports, and helps optimize workflow efficiency.

Ueli

MIT

A keyboard-driven launcher that helps you quickly find and open applications, files, and bookmarks across Windows, macOS, and Linux

Wakapi

MIT

Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.

Ziit

AGPL-3.0

Monitor your coding sessions, analyze productivity patterns, and gain insights into your development workflow with comprehensive time tracking statistics.

Actual

MIT

Privacy-focused personal finance app using envelope budgeting, multi-device sync, optional end-to-end encryption, and bank sync for US, EU, and UK users.

Financial Freedom

GPL-3.0

Self-hosted alternative to Mint and YNAB for budgeting and building wealth while maintaining full control of your financial data.

Firefly III

AGPL-3.0

Track transactions, budgets, and accounts with a double-entry system, multi-currency support, rule engine, and REST API. Fully self-hostable.

Monetr

Unknown

Manage your money confidently with monetr, putting aside what you need and spending what you want

Splitpro

MIT

Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.

Sure.am

AGPL-3.0

An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.

YAFFA

MIT

YAFFA is a powerful, open-source budget app for managing expenses, budgets, and investments with secure self-hosting.

Chalk.ist

MIT

Create beautiful, customizable images of your source code with ease, perfect for presentations, documentation, and social media sharing.

Graphite

Apache-2.0

A free, open source vector graphics editor built around nondestructive, node-based design. Runs locally in the browser, exports SVG, PNG, and JPG.