What is the main difference between Hyvor Relay and Plunk?

Hyvor Relay and Plunk are both email platforms but differ in their approach, features, and target audience. Compare their GitHub stats, technology stack, and community adoption to make the best choice.

Which is better: Hyvor Relay or Plunk?

The choice between Hyvor Relay and Plunk depends on your specific needs, technical requirements, and team preferences. Both are quality open source solutions with active communities.

Can I migrate from Hyvor Relay to Plunk?

Migration between Hyvor Relay and Plunk is possible but requires careful planning. Consider data export/import capabilities, feature parity, and potential workflow changes.

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Hyvor Relay vs Plunk

Learn how Hyvor Relay and Plunk differ in their key features, development activity, technology stack and community adoption, so you can decide which of these email platforms is best for you.

Hyvor Relay

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.

Visit Hyvor Relay Read more

922stars+6(+0.7%)

Last 30 days

Last commit
5 days ago
Repository age
1 year
Version
0.0.48
License
AGPL-3.0
Self-hosted
Yes
Repository
hyvor/relay

Plunk

Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Visit Plunk Read more

5,594stars+86(+1.6%)

Last 30 days

Last commit
1 day ago
Repository age
2 years
Version
v0.18.0
License
AGPL-3.0
Repository
useplunk/plunk

Detailed Comparison

Both Hyvor Relay and Plunk have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

Plunk wins

Community & Popularity

Plunk significantly outpaces Hyvor Relay in community adoption with 5,594 stars compared to 922 stars on GitHub. This 6.1x difference suggests Plunk has a much larger and more active community. In terms of developer contributions, Plunk has 435 forks, indicating moderate developer engagement.

Plunk wins

Growth Momentum

Plunk is growing faster, adding 86 stars in the last 30 days (+1.6%) against adding 6 stars for Hyvor Relay (+0.7%). Plunk is both larger and pulling further ahead.

Comparable

Development Activity

Both projects show recent activity, with Hyvor Relay last updated 5 days ago and Plunk 1 day ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript. However, they differ in their additional technology choices: Hyvor Relay uses Golang, PHP, SvelteKit while Plunk leverages JSX, Next.js.

Comparable

Project Maturity

Both projects started around the same time, with Hyvor Relay beginning 1 year ago and Plunk 2 years ago.

Comparable

Licensing

Both projects use the AGPL-3.0 license, providing identical terms for usage and distribution.

Comparable

Use Cases & Features

Both tools serve similar use cases in Email Platforms. However, they also have distinct specializations: Plunk extends into Customer Communication Platforms, Email Marketing & Newsletters.

Hyvor Relay wins

Hosting & Deployment

Hyvor Relay provides self-hosting options for complete data control and customization, while Plunk may be primarily cloud-based or require different deployment approaches.