Comparison

Bulma vs Preact

On the evidence we track, Preact leads this comparison with a composite score of 78/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Bulma full profile →Preact full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

Bulma47

★Preact78

Attribute comparison across 2 tools
Attribute	Bulma	PreactLeader
vioscaleAI score	47 / 100high · 77%	78 / 100medium · 72%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	free	open_source
Price levelpricing.price_level	free	free
Integrations
Countintegrations.count	9	-
Security
Scorecardsecurity.scorecard	2.9	5.8
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bulma&per_page=100 · Last 12m: 0	Count: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=preact&per_page=100 · Last 12m: 1 · Max severity: HIGH
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	64,999	78,992
Github starsadoption.github_stars	50,038	38,926
Package downloads weeklyadoption.package_downloads_weekly	366,730	38,692,983
Activity
Commits last 30dactivity.commits_last_30d	1	70
Release
Cadence daysrelease.cadence_days	113	13
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	MIT
Language
Primarylanguage.primary	CSS	JavaScript
Market
Availabilitymarket.availability	Available worldwide	-
Content
Faqcontent.faq	5 items	4 items

Score

vioscaleAI score

Bulma47 / 100high · 77%

Preact78 / 100medium · 72%

Pricing

Free tier

Bulma✓

Preact✓

Model

Bulmafree

Preactopen_source

Price level

Bulmafree

Preactfree

Integrations

Count

Bulma9

Preact–

Security

Scorecard

Bulma2.9

Preact5.8

Vulnerabilities

BulmaCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bulma&per_page=100 · Last 12m: 0

PreactCount: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=preact&per_page=100 · Last 12m: 1 · Max severity: HIGH

Reliability

Status page

Bulma✓

Preact–

Adoption

Dependent repos

Bulma64,999

Preact78,992

Github stars

Bulma50,038

Preact38,926

Package downloads weekly

Bulma366,730

Preact38,692,983

Activity

Commits last 30d

Bulma1

Preact70

Release

Cadence days

Bulma113

Preact13

History

Bulma20 items

Preact20 items

License

Spdx

BulmaMIT

PreactMIT

Language

Primary

BulmaCSS

PreactJavaScript

Market

Availability

BulmaAvailable worldwide

Preact–

Content

Faq

Bulma5 items

Preact4 items

Capabilities

Feature-by-feature on the axes that matter for frontend ui frameworks. “-” means undocumented, not absent.

Capability comparison for Frontend UI Frameworks
Capability	Bulma	Preact
Core
Paradigm	Flexbox and Grid-based CSS component framework	Virtual DOM component library
Reusable component model	✓	✓
Rendering
Virtual DOM	-	✓
Signals / fine-grained reactivity	-	-
SSR support	-	✓
DX
First-class TypeScript	-	-
State
Built-in state management	-	✓
Ecosystem
Official router	-	✓
Performance
Runtime size	Small (10–40kb)	Tiny (<10kb)

Core

Paradigm

BulmaFlexbox and Grid-based CSS component framework

PreactVirtual DOM component library

Reusable component model

Bulma✓

Preact✓

Rendering

Virtual DOM

Bulma-

Preact✓

Signals / fine-grained reactivity

Bulma-

Preact-

SSR support

Bulma-

Preact✓

First-class TypeScript

Bulma-

Preact-

State

Built-in state management

Bulma-

Preact✓

Ecosystem

Official router

Bulma-

Preact✓

Performance

Runtime size

BulmaSmall (10–40kb)

PreactTiny (<10kb)

What each one is

The product in its own terms, so the numbers below have context.

Bulma

A free, open-source CSS library providing pre-built components and utilities for constructing responsive web layouts. It uses Flexbox and CSS Grid as its foundation with CSS Variables for customization, requiring only a single CSS file and no JavaScript to get started.

Independently observed

Preact

Leader

A minimal virtual DOM framework providing React-style components and APIs, optimized for tiny bundle size and fast performance across modern browsers.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Bulma

FreeFree tier

as of 2026-10-13verify ↗

Preact

Leader

Open sourceFree tier

as of 2026-10-13verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Bulma	Preact
WebPlatforms	✓	✓
Cloud / SaaSDeployment	✓	-
Self-hostedDeployment	✓	-

Platforms

Web

Bulma✓

Preact✓

Deployment

Cloud / SaaS

Bulma✓

Preact–

Self-hosted

Bulma✓

Preact–

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Bulma

9 total

React
Vue.js
Angular
Ember
Blazor
Svelte
Elm
Django
Web Components

Independently observed

Preact

Leader

Not documented yet.

Still deciding?

Bulma or Preact: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.