Online Fax / Fax-to-Email
Send and receive faxes by email — no fax machine or fax line

Online fax (eFax / fax-to-email) handles faxes through email. The provider gives you a dedicated fax number; whenever someone faxes you, it arrives as a PDF in your email. To send a fax, you email or upload the document on a web page. No fax machine, paper, toner or fax line needed.
For businesses that still need to fax (e.g. with banks, government, clinics, logistics or Mainland factories) but don't want to keep a fax machine — and for people often out of office who want faxes anywhere.
Same product, different names.
Each carrier brands this differently — here’s how to recognise it when you compare quotes.
The honest pros and cons.
Benefits
- No fax machine, paper, toner or separate fax line — saving money and office space.
- Incoming faxes arrive as PDFs — easy to file, search and forward to colleagues.
- Send and receive faxes from a phone or laptop at home or on the road — no need to be in the office.
- Keep or get a Hong Kong (or even Mainland) fax number so clients can fax you as usual.
- No physical machine means no paper jams, no running out of toner and no missed pages.
Watch-outs
- Most plans cap monthly inbound/outbound pages, with per-page charges once you go over.
- It relies on your internet and email — problems with either can affect sending or receiving.
- When faxes carry sensitive data, mind email security — use proper company email and archiving.
- A specific new number or a Mainland number may carry an extra charge.
Indicative pricing: entry personal/small-business plans roughly from HK$40–100 per month with a page allowance (e.g. 200 inbound / 100 outbound pages a month), then per-page overage (from around a few cents a page). High-volume or multi-user business needs are usually quote-based.
Common questions
Q01Can I keep my existing fax number?
Q02What format do received faxes come in?
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