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Open Source Freelancer Tools using Sentry

A curated collection of the best open source financial and administrative tools tailored for freelancers. using Sentry.

Invoice Ninja

Send invoices, accept payments, manage your business—all free

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Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects without hidden fees.

Open Source Alternative to:

Quickbooks

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