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Synder alternatives · Accounting

Open-source alternatives to Synder

Synder is not described as open source on its own site. 7 of the 128 other accounting and invoicing tools in this directory are open source, according to their own sites.

Synder is a paid product with a free trial, starting at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly). All of them are free or have a free plan.

7 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

How each one differs from Synder

  1. Akaunting

    Open-source accounting you can host yourself or use in the cloud

    • Akaunting starts at $72 per year, self-hosted. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • Akaunting has a free plan. Synder does not, though it has a free trial.
    • Akaunting is open source and self-hostable, according to its own site.
    • Akaunting also covers invoicing and expense tracking.
    Akaunting pricing and details

  2. Odoo

    Business app suite whose Accounting app is free when used on its own

    • Odoo starts at $31.10 per user / month, billed annually, after $24.90 for the first 12 months. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • Odoo has a free plan. Synder does not, though it has a free trial.
    • Only Odoo lists iOS and Android apps.
    • Odoo is open source and self-hostable, according to its own site.
    Odoo pricing and details

  3. GnuCash

    Free double-entry accounting for home and small business use

    • GnuCash is free. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • GnuCash has a free plan. Synder does not, though it has a free trial.
    • Only GnuCash lists Windows, macOS and Linux apps.
    • Only Synder lists a web app.
    GnuCash pricing and details

  4. Bigcapital

    Open-source accounting you host yourself, with a cloud version planned

    • Bigcapital is free. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • Bigcapital has a free plan. Synder does not, though it has a free trial.
    • Bigcapital is open source and self-hostable, according to its own site.
    • Bigcapital also covers invoicing and inventory.
    Bigcapital pricing and details

  5. LedgerSMB

    Open-source double-entry accounting and ERP you install yourself

    • LedgerSMB is free. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • LedgerSMB has a free plan. Synder does not, though it has a free trial.
    • LedgerSMB is open source and self-hostable, according to its own site.
    • LedgerSMB also covers invoicing, inventory and quotes and estimates.
    LedgerSMB pricing and details

  6. InvoiceShelf

    Open-source invoicing and expense tracking you host yourself

    • InvoiceShelf is free. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • InvoiceShelf has a free plan. Synder does not, though it has a free trial.
    • InvoiceShelf is open source and self-hostable, according to its own site.
    • InvoiceShelf also covers invoicing, expense tracking and quotes and estimates.
    InvoiceShelf pricing and details

  7. InvoicePlane

    Free self-hosted invoicing for quotes, invoices and payments

    • InvoicePlane is free. Synder starts at $52 per month for up to 500 sales transactions, billed yearly ($65 billed monthly).
    • InvoicePlane has a free plan. Synder does not, though it has a free trial.
    • InvoicePlane is open source and self-hostable, according to its own site.
    • InvoicePlane also covers invoicing and quotes and estimates.
    InvoicePlane pricing and details

Common questions

Is there an open-source alternative to Synder?

Yes. Akaunting, Odoo, GnuCash, Bigcapital, LedgerSMB, InvoiceShelf and InvoicePlane are open source, according to their own sites.

Is Synder open source?

Synder is not described as open source on its own site. The listing was checked on Oct 18, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 17, 2026 to Nov 13, 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 Synder: the alternatives its listing names first, then the tools that share the most features with it.