What is the best free online fax service?

Fax.Plus is the best free online fax service for most people — it gives you 10 pages per month permanently with no credit card required and supports 180+ countries. For no-signup sending only, FaxZero is the easiest option with up to 5 faxes per day to US and Canadian numbers.

Can I send a fax online for free without signing up?

Yes. FaxZero and GotFreeFax both let you send faxes to US/Canada numbers without creating an account. FaxZero allows up to 5 faxes per day (3 pages each); GotFreeFax allows up to 2 faxes per day (3 pages each). Neither service requires registration.

How many pages can I fax for free?

It depends on the service. FaxZero gives you up to 5 faxes × 3 pages daily (renewable). Fax.Plus offers 10 pages per month permanently. CocoFax offers 10 pages as a one-time lifetime allowance. eFax's 7-day trial includes 170 pages. For regular free faxing, Fax.Plus or FaxZero offer the best ongoing value.

Are free fax services HIPAA compliant?

Most are not. CocoFax is one of the few free-tier services that claims HIPAA compliance. For healthcare documents containing PHI, you should use a service that provides a signed Business Associate Agreement (BAA) — which requires a paid plan on most platforms. See our [guide to HIPAA-compliant fax services](/blog/best-hipaa-compliant-fax-services/).

What happens when I run out of free fax pages?

You can upgrade to a paid plan or switch to a pay-per-fax service like mFax, which charges only when you send — with no monthly subscription required. This is often cheaper than committing to a plan if your fax volume is low.

Best Free Online Fax Services: 7 That Actually Work (2026)

Not every "free" fax service delivers. We tested 7 of the best free online fax services in 2026 — comparing page limits, sign-up requirements, HIPAA compliance, and reliability — so you know exactly what you're getting.

Frequently Asked Questions

What is the best free online fax service?: Fax.Plus is the best free online fax service for most people — it gives you 10 pages per month permanently with no credit card required and supports 180+ countries. For no-signup sending only, FaxZero is the easiest option with up to 5 faxes per day to US and Canadian numbers.
Can I send a fax online for free without signing up?: Yes. FaxZero and GotFreeFax both let you send faxes to US/Canada numbers without creating an account. FaxZero allows up to 5 faxes per day (3 pages each); GotFreeFax allows up to 2 faxes per day (3 pages each). Neither service requires registration.
How many pages can I fax for free?: It depends on the service. FaxZero gives you up to 5 faxes × 3 pages daily (renewable). Fax.Plus offers 10 pages per month permanently. CocoFax offers 10 pages as a one-time lifetime allowance. eFax's 7-day trial includes 170 pages. For regular free faxing, Fax.Plus or FaxZero offer the best ongoing value.
Are free fax services HIPAA compliant?: Most are not. CocoFax is one of the few free-tier services that claims HIPAA compliance. For healthcare documents containing PHI, you should use a service that provides a signed Business Associate Agreement (BAA) — which requires a paid plan on most platforms. See our [guide to HIPAA-compliant fax services](/blog/best-hipaa-compliant-fax-services/).
What happens when I run out of free fax pages?: You can upgrade to a paid plan or switch to a pay-per-fax service like mFax, which charges only when you send — with no monthly subscription required. This is often cheaper than committing to a plan if your fax volume is low.