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Synthflow alternatives · AI Agents

Open-source alternatives to Synthflow

Synthflow is not described as open source on its own site. 23 of the 101 other AI agents in this directory are open source, according to their own sites.

Synthflow's current pricing could not be confirmed from its own site. 21 of them are free or have a free plan.

23 tools · Listings checked up to Nov 12, 2026 · Where the facts come from

The 12 closest to Synthflow

  1. Letta

    Stateful agents with long-term memory, from the MemGPT team

    • Letta has a free plan. Synthflow does not.
    • Letta is open source, according to its own site.
    • Letta also covers workflow automation.
    • Synthflow also covers business phone line.
    Letta pricing and details

  2. E2B

    Cloud sandboxes where AI agents run code and tools

    • E2B is open source, according to its own site.
    • Synthflow also covers business phone line.
    E2B pricing and details

  3. Mem0

    Memory layer that lets AI agents remember across sessions

    • Mem0 has a free plan. Synthflow does not.
    • Mem0 is open source and self-hostable, according to its own site.
    • Synthflow also covers business phone line.
    Mem0 pricing and details

  4. AutoGPT

    Open-source agent platform with a hosted team of AI Experts

    • AutoGPT has a free plan. Synthflow does not.
    • AutoGPT is open source and self-hostable, according to its own site.
    • AutoGPT also covers workflow automation.
    • Synthflow also covers business phone line.
    AutoGPT pricing and details

  5. Dify

    Open-source platform for building AI agents and agentic workflows

    • Dify has a free plan. Synthflow does not.
    • Dify is open source and self-hostable, according to its own site.
    • Dify also covers workflow automation and no-code.
    • Synthflow also covers business phone line.
    Dify pricing and details

  6. Kortix

    Open-source platform for running AI agents from a git repo you own

    • Kortix has a free plan. Synthflow does not.
    • Only Kortix lists macOS, Windows, Linux, iOS and Android apps.
    • Kortix is open source and self-hostable, according to its own site.
    • Kortix also covers workflow automation.
    Kortix pricing and details

  7. goose

    Open-source AI agent with a desktop app, CLI and API

    • goose has a free plan. Synthflow does not.
    • Only goose lists macOS, Windows and Linux apps.
    • Only Synthflow lists a web app.
    • goose is open source, according to its own site.
    goose pricing and details

  8. Langflow

    Open-source visual builder for AI agents and MCP servers

    • Langflow has a free plan. Synthflow does not.
    • Only Langflow lists macOS, Windows and Linux apps.
    • Langflow is open source and self-hostable, according to its own site.
    • Langflow also covers templates.
    Langflow pricing and details

  9. Sim

    Open-source workspace for building and running AI agents

    • Sim has a free plan. Synthflow does not.
    • Only Sim lists a macOS app.
    • Sim is open source and self-hostable, according to its own site.
    • Sim also covers workflow automation.
    Sim pricing and details

  10. Agenta

    Open-source workspace for building team AI agents and automations

    • Agenta has a free plan. Synthflow does not.
    • Agenta is open source and self-hostable, according to its own site.
    • Agenta also covers templates, workflow automation and no-code.
    • Synthflow also covers business phone line.
    Agenta pricing and details

  11. Browser Use

    Browser agents and cloud browsers for AI apps

    • Browser Use has a free plan. Synthflow does not.
    • Browser Use is open source, according to its own site.
    • Synthflow also covers business phone line.
    Browser Use pricing and details

  12. SuperAGI

    AI-native sales apps and agents, from the open-source agent project

    • SuperAGI is open source, according to its own site.
    • SuperAGI also covers sales pipeline and workflow automation.
    • Synthflow also covers business phone line.
    SuperAGI pricing and details

11 more that are open source

All 23 in one table

Common questions

Is there an open-source alternative to Synthflow?

Yes. Letta, E2B, Mem0, AutoGPT, Dify, Kortix, goose, Langflow and 15 more are open source, according to their own sites.

Is Synthflow open source?

Synthflow is not described as open source on its own site. The listing was checked on Nov 12, 2026 against the pages it cites.

Which of these AI agents are free?

Letta, Mem0, AutoGPT, Dify, Kortix, goose, Langflow, Sim and 13 more are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Synthflow: the alternatives its listing names first, then the tools that share the most features with it.