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SolidJS vs Valkey

SolidJS logo

SolidJS

Web Development

Reactive JavaScript framework with no virtual DOM

From
Free
Rated
-
Full reviewWebsite
Valkey logo

Valkey

Databases

Open-source in-memory data store forked from Redis

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: SolidJS much smaller ecosystem than React, so many problems have no off-the-shelf library; Valkey younger project, so its track record is short even though the codebase is not
  • They diverge on capability: SolidJS covers No virtual DOM, Valkey covers Redis-compatible.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which SolidJS and Valkey actually diverge.

Attributes where SolidJS and Valkey differ
AttributeSolidJSValkey
Pricing modelOpen source, no licence feeOpen source, no licence fee; managed cloud billed separately
PlatformsWebLinux, macOS, Docker, Self-hosted
CategoryWeb DevelopmentDatabases

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in SolidJS

  • No virtual DOM
  • Components run once
  • JSX syntax
  • Small bundles

Only in Valkey

  • Redis-compatible
  • BSD licensed
  • Rich data structures
  • Replication and persistence

What people use each for

The jobs each tool is most often brought in to do.

SolidJS

  • Interfaces where update performance is the binding constraintnot Valkey
  • Teams comfortable with React syntax who want finer-grained reactivitynot Valkey
  • Applications where bundle size directly affects the businessnot Valkey

Valkey

  • Continuing on a permissively licensed in-memory store after the Redis licence changenot SolidJS
  • Caching and session storage where a foundation-governed project is a procurement requirementnot SolidJS
  • Migrating from Redis without rewriting application codenot SolidJS

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

SolidJS

  • Much smaller ecosystem than React, so many problems have no off-the-shelf library
  • The React-like syntax is misleading: components run once, and React habits produce subtle bugs
  • Smaller hiring pool and fewer learning resources than the mainstream frameworks

Valkey

  • Younger project, so its track record is short even though the codebase is not
  • Divergence from Redis grows over time, so compatibility is strongest near the fork point and weakens as both evolve
  • Ecosystem tooling and documentation still frequently assume Redis, leaving translation work

Pricing, plan by plan

SolidJS

Free
  • SolidJSFree
    • Full library
    • Commercial use permitted
    • No usage limits

Valkey

Free
  • ValkeyFree
    • Full functionality
    • Self-hosted
    • No usage limits

Which should you pick?

Choose SolidJS if

  • You need no virtual dom.
  • You want to start without paying.
  • You also want components run once.
SolidJS review

Choose Valkey if

  • You need redis-compatible.
  • You want to start without paying.
  • You work on Linux, macOS, Docker, Self-hosted.
  • You also want bsd licensed.
Valkey review

Questions people ask

Is SolidJS or Valkey better?
Neither clearly leads. SolidJS starts at Free and Valkey at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, SolidJS or Valkey?
SolidJS starts at Free and Valkey at Free.
Does SolidJS or Valkey run on more platforms?
SolidJS runs on Web. Valkey runs on Linux, macOS, Docker, Self-hosted.
Can I use SolidJS for free?
Both have a free tier, so you can try either at no cost before committing.
What is SolidJS best used for?
SolidJS is most often used for interfaces where update performance is the binding constraint, teams comfortable with react syntax who want finer-grained reactivity, applications where bundle size directly affects the business. Of those, interfaces where update performance is the binding constraint and teams comfortable with react syntax who want finer-grained reactivity are not what Valkey is typically brought in for.
What can SolidJS do that Valkey cannot?
SolidJS covers No virtual DOM, Components run once, JSX syntax, Small bundles. Valkey covers Redis-compatible, BSD licensed, Rich data structures, Replication and persistence.

Answered from the vendors’ own pages

SolidJS: Is SolidJS free?

Yes, open source under the MIT licence.

Valkey: Is Valkey free?

Yes, BSD-licensed open source under the Linux Foundation.

SolidJS: Is SolidJS just React without the virtual DOM?

The syntax is similar but the model is not. Solid components run once and reactivity is fine-grained, so patterns that are correct in React can be wrong in Solid.

Valkey: Why does Valkey exist?

Redis changed its licence away from BSD in 2024. Valkey is the community fork continuing under permissive terms, backed by AWS, Google Cloud and Oracle among others.

SolidJS: Why is SolidJS fast?

It compiles away much of the framework and updates individual DOM nodes directly, rather than re-rendering components and diffing a virtual DOM.

Valkey: Can I switch from Redis to Valkey?

At the fork point it is drop-in compatible with existing clients and data. The further both projects move from that point, the more you should verify the specific features you use.

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