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Browse Upcoming Open Source Tools & Software

A list of open source tools that are scheduled to be published on OpenAlternative soon. They are not visible anywhere else on the site.

ArcadeDB

One database for graphs, documents, vectors, and time-series

  • Stars

    Stars growing over the last 30 days1,219

  • Last commit

    10 hours ago

  • License

    Apache-2.0
Multi-model database that stores graphs, documents, key-value, vectors, full-text search, and time-series in one ACID engine, queryable with SQL, Cypher, and Gremlin.

Open Source Alternative to:

Neo4j

RexaDB

Desktop database studio for SQL, NoSQL, and AI queries

  • Stars

    119

  • Last commit

    9 hours ago

  • License

    GPL-3.0
Database studio for PostgreSQL, MySQL, SQLite, MongoDB, and 100+ others via JDBC. Query, browse, visualize schemas, and generate SQL with an AI agent.

Open Source Alternative to:

TablePlus

Readest

Cross-platform EPUB & PDF reader with deep reading tools

  • Stars

    Stars growing over the last 30 days25,624

  • Last commit

    20 hours ago

  • License

    AGPL-3.0
Read EPUB and PDF files across every major platform with highlights, notes, split-screen reading, TTS, cloud sync, and built-in translation via DeepL.

Open Source Alternative to:

Kindle

MonoCode

AI
Desktop GUI for your existing coding agents

  • Stars

    Stars growing quickly over the last 30 days3,417

  • Last commit

    5 hours ago

  • License

    MIT
Wraps Claude Code, Codex, Grok Build, and other coding agents in a native desktop UI so you can manage them without leaving the terminal.

Open Source Alternative to:

Claude Code

Spacetime

Real-time backend database with embedded server logic

  • Stars

    25,389

  • Last commit

    14 hours ago

  • License

    BUSL-1.1
Combines database, server logic, auth, and real-time client sync into one system for apps and games, with modules written in TypeScript, C#, C++, or Rust.

Open Source Alternative to:

Firebase

BrightBean Studio

Schedule posts to 10+ platforms, free and self-hostable

  • Stars

    Stars growing over the last 30 days2,573

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Social media scheduling and analytics tool that covers 11 platforms, team workflows, and approval queues, with no per-seat pricing or channel limits.

Open Source Alternative to:

HootSuite
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