h5ai vs OpenCloud

A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.

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Featureh5aiOpenCloud
Deploy effortRead-the-docs projectUnder-an-hour setup
Health score23 · At risk90 · Excellent
CategoryFile Sync & StorageFile Sync & Storage
LicenseMITApache-2.0
LanguageJavaScriptGo
Setup difficultyEasyMedium
Min. RAM64 MB512 MB
Deploymentbare-metaldocker
GitHub stars★ 6,055★ 6,056
First released20122025
ReplacesGoogle DriveDropbox, Google Drive

What are h5ai and OpenCloud?

h5ai

h5ai is a modern file indexer for HTTP web servers that provides a polished directory listing with previews, search, and multiple view modes. It enhances browsing of shared file directories.

  • Polished directory listings
  • File previews and search
  • Multiple view modes

OpenCloud

OpenCloud is a modern open-source file sync, share, and collaboration platform built on a microservice architecture. It targets organizations wanting a current, lightweight content collaboration server. It is deployed via Docker Compose.

  • Microservice-based architecture
  • Web-based collaboration
  • Lightweight Go backend
  • Compatible desktop clients

Read the full OpenCloud guide →

h5ai vs OpenCloud: key differences

H5ai is written in JavaScript, while OpenCloud is built with Go. Licensing differs — MIT for h5ai versus Apache-2.0 for OpenCloud. H5ai is the lighter option, starting around 64 MB of RAM against 512 MB for OpenCloud. H5ai is the more established project (first released 2012), while OpenCloud arrived in 2025. OpenCloud lists first-class Docker deployment; h5ai does not.

Why pick each one

Choose h5ai if…

  • Released under the MIT license
  • Easy to set up — beginner-friendly
  • Mature project with 6.1k GitHub stars
  • Written in JavaScript
h5ai details

Choose OpenCloud if…

  • Modern, fast codebase
  • Lightweight footprint
  • Permissively licensed

Watch out for

  • Very new project
  • Smaller ecosystem so far
OpenCloud details

Frequently asked questions

Is h5ai or OpenCloud better?

Neither is universally better. OpenCloud has the larger community, while h5ai is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are h5ai and OpenCloud free and open-source?

Yes. h5ai is licensed under MIT and OpenCloud under Apache-2.0. Both can be self-hosted at no software cost.

Can I run h5ai and OpenCloud with Docker?

h5ai: check the project docs for container support. OpenCloud: yes.

Which is lighter on resources, h5ai or OpenCloud?

h5ai has the smaller minimum footprint at 64 MB of RAM, compared to about 512 MB for OpenCloud. Real-world usage depends on library size, user count, and enabled features.

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