2FAS alternatives,
built on Cloudflare.

Yes — 2FAS can be replaced with Cloudflare. Cloudsteading tracks 1 working build that swap 2FAS for a Cloudflare loadout (KV, Workers). Each entry includes source code, monthly cost estimates, and honest tradeoffs.

See 1 build ↓

1 build·2 CF primitives wired·authenticators

Top build

replaces 2FAS

2FA

Manage TOTP and HOTP codes in a self-hosted web app on Workers and KV.

Open build →

How Cloudflare replaces it

Loadout most often used by the 1 build replacing 2FAS.

KVsmall values, fast reads

in 1

Workersrequest handler

in 1

Frequently asked

Can you replace 2FAS with Cloudflare?+

Yes. 1 approved Cloudsteading build replace 2FAS using Cloudflare primitives — most commonly KV, Workers. Each entry ships working code and a monthly cost estimate.

Which Cloudflare primitives replace 2FAS?+

Across 1 build replacing 2FAS, the most-used Cloudflare primitives are KV, Workers. Most authenticators workloads need only 3–5 primitives — typically Workers for routing, D1 or KV for state, and R2 for blobs.

What is the best open-source 2FAS alternative on Cloudflare?+

2FA — Manage TOTP and HOTP codes in a self-hosted web app on Workers and KV.. See the build entry for source code, primitive loadout, and the full cost breakdown.

directory/alternatives to/2FAS