otplib is an open-source project built for developers needing OTP authentication.

Does otplib have a free plan?

Yes — otplib is open source under the MIT license and free to use.

What platforms does otplib run on?

otplib runs on the web, the command line, and API. It can also be self-hosted.

Is otplib still active?

The GitHub repository shows 31 commits in the last 90 days.

otplib is developed by Gerald Yeo.

Is otplib open source?

Yes — otplib is open source under the MIT license, developed on GitHub.

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otplib

Name: otplib
Author: Gerald Yeo

yeojz.devInfrastructure

otplib is an open-source TypeScript library that provides developers with tools to generate and verify HOTP and TOTP one-time passwords. It supports multiple runtimes, is RFC compliant, and is compatible with popular authenticator apps.

Open SourceMITWebCLIAPISelf-hosted

Visit yeojz.dev

2.3kstars

145forks

5features

2014since

Overview

5 features

otplib sits in PulseGate's Frameworks & SDKs category. It enables developers to implement secure one-time password authentication in their applications. otplib is an open-source project aimed at developers needing OTP authentication. The project is open source (MIT). It ships for the web, the command line, and API, and it can be self-hosted.

Behind otplib is Gerald Yeo, and it first shipped in 2014. Development happens publicly on GitHub with 2.3k stars and 31 commits in the last 90 days. Among its 5 catalogued features are HOTP support, TOTP support, and typeScript native.

Summary written by a language model from the project’s public pages.

HOTP support
TOTP support
TypeScript native
Pluggable architecture
RFC compliance

Built with & integrations

Framework

Vue

Runs on

BrowserCLIAPI-onlySelf-hosted

Detected from

Vue: bdata-v- in the HTML

Trust & compliance

License

MIT

Verified signals

HTTPSOpen SourceFree tierGitHub · ★ 2.3kActive maintenance

Indexing history

What PulseGate has recorded for this listing

Indexed15 Jun · 11:45 UTC
Listing verified against its public source
Source: PulseGate · Open

Frequently asked questions about otplib

What does otplib do?: Otplib enables developers to implement secure one-time password authentication in their applications. It is catalogued under Frameworks & SDKs on PulseGate.
Who is otplib for?: otplib is an open-source project built for developers needing OTP authentication.
Does otplib have a free plan?: Yes — otplib is open source under the MIT license and free to use.
What platforms does otplib run on?: otplib runs on the web, the command line, and API. It can also be self-hosted.
Is otplib still active?: The GitHub repository shows 31 commits in the last 90 days.
Who develops otplib?: otplib is developed by Gerald Yeo.
How long has otplib been around?: otplib first shipped in 2014.
Is otplib open source?: Yes — otplib is open source under the MIT license, developed on GitHub.

At a glance

Pricing: Open Source
Platforms: API · CLI · Web
Languages: English
Open source: Yes · ★ 2.3k
License: MIT
Built for: Developers needing OTP authentication
Model: Open source
Solves: Enables developers to implement secure one-time password authentication in their applications.

Registered as

GitHub: yeojz/otplib

Developer

Gerald Yeo

Team

GitHub

Open source

View on GitHub

Stars: 2,258
Forks: 145
Open issues: 7
Last commit: 14 Jun 2026
Commits 90d: 31
Contributors: 17
Authorship: Team
Default branch: main
Latest release: v13.4.1 · 30 May 2026

Index record

Indexed: 15 Jun 2026
Lifecycle: Alive
Last seen: 15 Jun 2026

Identity audit (12)

Slug: otplib-yeojz-dev
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 15 Jun 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by the 2026 taxonomy migration.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Canonical URL: https://otplib.yeojz.dev/

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