Comparison

Bulma vs Preact

On the evidence we track, Preact leads this comparison with a composite score of 81/100. 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 →

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Bulma48

★Preact81

Attribute comparison across 2 tools
Attribute	Bulma	PreactLeader
Vioscale score	48 / 100medium · 72%	81 / 100medium · 72%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	free
Security
Scorecardsecurity.scorecard	2.8	5.7
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	50,059	38,834
Package downloads weeklyadoption.package_downloads_weekly	371,536	31,234,030
Activity
Commits last 30dactivity.commits_last_30d	0	100
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	-

Score

Vioscale score

Bulma48 / 100medium · 72%

Preact81 / 100medium · 72%

Pricing

Free tier

Bulma✓

Preact–

Model

Bulmacommercial

Preactcommercial

Price level

Bulmafree

Preactfree

Security

Scorecard

Bulma2.8

Preact5.7

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

Bulma50,059

Preact38,834

Package downloads weekly

Bulma371,536

Preact31,234,030

Activity

Commits last 30d

Bulma0

Preact100

Release

Cadence days

Bulma113

Preact13

History

Bulma20 items

Preact20 items

License

Spdx

BulmaMIT

PreactMIT

Language

Primary

BulmaCSS

PreactJavaScript

Market

Availability

BulmaAvailable worldwide

Preact–

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 library that provides a React-compatible API with significantly reduced file size. Preact delivers performance-focused component development without the overhead of traditional frameworks.

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

Open sourceFree tier

as of 2026-08-13verify ↗

Preact

Leader

Open source

as of 2026-08-13verify ↗

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–

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