Preact
A lightweight JavaScript framework that delivers React-compatible features in just 3 kilobytes
- Also known as
- preact
What is Preact?
A minimal virtual DOM framework providing React-style components and APIs, optimized for tiny bundle size and fast performance across modern browsers.
Preact pricing
We don't have Preact's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Preact does
The capabilities that matter for frontend ui frameworks, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Paradigm
- Virtual DOM component library
- Reusable component model
- ✓
- Virtual DOM
- ✓
- Signals / fine-grained reactivity
- -
- SSR support
- ✓
- First-class TypeScript
- -
- Built-in state management
- ✓
- Official router
- ✓
- Runtime size
- Tiny (<10kb)
Platform & deployment
Independently observed- Web
Security & compliance
Known vulnerabilities: 2 (1 in the last 12 months), max severity HIGH sourcea count reflects scale & disclosure, not quality
Preact FAQ
Common questions about Preact, answered from independent, dated evidence.
What is Preact?
A minimal virtual DOM library that provides a React-compatible API with significantly reduced file size. Preact delivers performance-focused component development without the overhead of traditional frameworks. It is indexed under Frontend UI Frameworks.
Source: https://preactjs.com/
Is Preact free to use?
Preact is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.
Source: https://preactjs.com/
What platforms does Preact support?
We have confirmed browser-based access to Preact. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.
Source: https://preactjs.com/
Is Preact open source?
Yes. Preact is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Preact alternatives
Other frontend ui frameworks we track, ranked by the same independent score.
- Vue.jsA progressive JavaScript framework for incremental web UI developmentmedium · 71%
- Vue.jsA JavaScript framework for building web user interfaces with progressive and gradual adoptionhigh · 77%
- MUIReady-to-use React components for building web applicationsmedium · 72%
- AngularA development platform for building web, mobile, and desktop applications with TypeScriptmedium · 58%
- SvelteA web development approach focused on simplicity and efficiencymedium · 71%
- Reactmedium · 71%
Compare Preact
Side by side against other frontend ui frameworks, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Preact, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package downloads | 99 | 0.17 | 17.0 | ✓ |
| Development activity | 58 | 0.12 | 7.0 | ✓ |
| Dependent projects | 82 | 0.08 | 6.5 | ✓ |
| Capabilities | 75 | 0.08 | 6.2 | ✓ |
| Release cadence | 93 | 0.07 | 6.2 | ✓ |
| Security score | 58 | 0.05 | 3.1 | ✓ |
| Stars | 87 | 0.03 | 2.9 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.09 | 0.0 | - |
| Developer Q&A activity | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 70 | mediumsource · 2026-10-13 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 4 items | mediumsource · 2026-09-10 · 70% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Paradigm: Virtual DOM component library · Bundle size: tiny · Ssr support: Yes · Virtual dom: Yes · Component model: Yes · Router official: Yes | mediumsource · 2026-10-13 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | JavaScript | highsource · 2026-10-13 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-13 · 99% |
Pricing
Release
Security
Is Preact the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Preact against the rest of the frontend ui frameworks we index, using the same dated evidence weighted your way.
Free to run, no account needed to start. How the evaluation works
Is this your product?
This profile was built from public sources without asking you. You can take the badge below and use it anywhere, and you can claim the profile to correct anything we got wrong. Both are free, and neither moves Preact up or down: nobody can buy rank here, including you.
Take the badge
Live, always current, and free to use on your own site. It shows Preact's independent score and links back to this profile.
<a href="https://www.vioscale.ai/software/preact" target="_blank" rel="noopener">
<img src="https://www.vioscale.ai/badge/software/preact.svg" alt="Preact, verified on vioscaleAI" width="330" height="76" loading="lazy" />
</a>Markdown, for a README →
[](https://www.vioscale.ai/software/preact)Claim the profile
Verify you control the domain, then point us at the pages that state the facts about Preact and add your own description and media. Free, and it does not change the score.
- Correct anything wrong, with evidence
- Point our crawler at the pages that matter
- Write your own description and add media
Not the owner? How vendor profiles work