OneTimeSuite Blog · 2026

5 Free & Open-Source Alternatives to FreshBooks

Looking for a free or open-source alternative to FreshBooks? Billcraft is the closest direct swap — MIT-licensed source on GitHub, or a $39 one-time packaged install. Since you're already auditing what you pay FreshBooks every month, here are four more pay-once tools from the same catalog worth a look while you're at it — different jobs, same idea: buy the software once instead of renting it forever.

1. Billcraft — replaces FreshBooks

Clients, invoices, PDFs, share links & recurring billing — on hardware you control. $39 once vs FreshBooks's $19/mo. Free on GitHub, or the packaged installer on Whop.

See Billcraft → · Source on GitHub

2. Bookslot — The Calendly you actually own — timezone-correct booking with email + ICS invites.

Replaces Calendly ($10/user/mo). $39 once. See Bookslot →

3. Formforge — Typeform-style forms with unlimited responses, file uploads and CSV export — self-hosted.

Replaces Typeform ($29/mo). $39 once. See Formforge →

4. SigCraft — Email-safe HTML signatures with 10 templates and team CSV batch export — 100% local.

Replaces WiseStamp ($6/mo/user). $15 once. See SigCraft →

5. PostDock — Self-hosted social scheduling — composer, queue, content recycling & webhooks. Your API keys, your data.

Replaces Buffer ($6/channel/mo). $49 once. See PostDock →

Why this list is worth bookmarking

Every app above is a one-time purchase with MIT-licensed source, no accounts with us and no telemetry. None of them are trying to be the next FreshBooks — they're trying to be the last subscription you pay for that specific job.

Try Billcraft — $39, once

Clients, invoices, PDFs, share links & recurring billing — on hardware you control.