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OAuth2 Alternatives
Similar projects and alternatives to OAuth2
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Kargo
Stop Scripting Promotions. Start Shipping with Kargo. Kargo automates promotion across dev, staging, and prod with approval gates and verification. Open source, built by the team behind Argo CD. Download now.
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AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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mock-oauth2-server
Mock OAuth2/OpenID Connect server for JVM tests and Docker Compose. No security workarounds needed.
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skywalking-eyes
A full-featured license tool to check and fix license headers and resolve dependencies' licenses.
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gem_bench
🪑 Benchmark different versions of same or similar gems & Static Gemfile and installed gem library source code analysis
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Devise Token Auth
Token based authentication for Rails JSON APIs. Designed to work with jToker and ng-token-auth.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better OAuth2 alternative or higher similarity.
OAuth2 discussion
OAuth2 reviews and mentions
Posts with mentions or reviews of OAuth2.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-09-14.
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💎REL: oauth2 v2.0.18
oauth2 v2.0.18 was released... almost five months ago. And I never got around to posting about it. Being unemployed is a LOT of work...
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💎 ANN: oauth2 v2.0.17
PR: Add Hash‑based verb‑dependent mode https://github.com/ruby-oauth/oauth2/pull/682
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💎 ANN: oauth2 v2.0.15 & v2.0.16 w/ full E2E example
2.0.16 - 2025-09-14
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👩🔧 How to Check License Compatibility
While those last two PRs aren't merged, it is already working for a basic use case of a project with MIT and Ruby licensed dependencies, such as oauth2: https://github.com/ruby-oauth/oauth2/pull/676
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💎 ANN: oauth2 v2.0.14
📝 Added OIDC documentation, example, and spec references in OIDC.md in PR #663
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💎 ANN: oauth2 v2.0.13
🔨 https://github.com/ruby-oauth/oauth2
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Ann: oauth2 v2.0.12 (w/ support for kids)
See response_spec.rb, or the oauth-xx/snaky_hash gem for more ideas.
- Announce: shields-badge v1.0.0
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gem oauth2 v2.0.10 released
This project sits underneath a large portion of the authorization systems on the internet. According to GitHub's project tracking, which I believe only reports on public projects, 100,000+ projects, and 500+ packages depend on this project. That is a lot of things to upgrade.
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Facebook Omniauth for SSO
Here's the gem I used. gem 'oauth2'
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A note from our sponsor - AppSignal
www.appsignal.com | 6 Sep 2026
Stats
Basic OAuth2 repo stats
10
2,179
9.4
4 days ago
ruby-oauth/oauth2 is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of OAuth2 is Ruby.
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