Svelte
Web development for the rest of us
- Vendor
- Svelte
- Also known as
- sveltejs
Available worldwide
What is Svelte?
A UI framework that uses a compiler to write concise components that do minimal work in the browser, using HTML, CSS, and JavaScript.
Svelte pricing
We don't have Svelte'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 Svelte 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
- Compiled reactive UI framework
- 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
Svelte FAQ
Common questions about Svelte, answered from independent, dated evidence.
What is Svelte and how does it work?
Svelte is an open-source UI framework that uses a compiler to convert declarative component code into efficient vanilla JavaScript that runs in the browser. Rather than shipping a runtime framework to users, Svelte moves the heavy lifting to build time, resulting in minimal, optimized code that surgically updates the DOM. This compiler-first approach produces smaller bundle sizes and better runtime performance compared to traditional runtime-based frameworks.
Source: https://svelte.dev
Is Svelte free and open source?
Yes, Svelte is a free, open-source project released under the MIT license. It is maintained by Vercel and a community of volunteer contributors, with no licensing fees, paid tiers, or commercial restrictions. Anyone can use, modify, and distribute Svelte for any project.
What languages and technologies does Svelte use?
Svelte uses standard web technologies: HTML for structure, CSS for styling, and JavaScript for interactivity. Developers write components using these familiar languages without needing to learn a specialized syntax or framework-specific language extensions. TypeScript support is also available for developers who prefer static typing.
Source: https://svelte.dev
What is SvelteKit and when should I use it?
SvelteKit is a full-stack framework built on top of Svelte that handles routing, server-side rendering, static site generation, and deployment configuration. Use SvelteKit when building complete web applications that need server-side functionality, form handling, and data management; use standalone Svelte when building individual components or component libraries.
Source: https://svelte.dev
Does Svelte have active development and regular updates?
Yes, Svelte receives consistent maintenance and updates from its development team and community. The project publishes monthly releases documenting new features across Svelte, SvelteKit, and related tooling, with recent focus on developer experience, TypeScript integration, async functionality, and tooling improvements.
Source: https://svelte.dev/blog
How popular is Svelte among developers?
Svelte consistently ranks highly in developer satisfaction surveys, including top positions in Stack Overflow and State of JavaScript surveys. It is praised for its approachable design and powerful capabilities, attracting developers across skill levels. The framework has a growing community supported by Svelte Society events and an active Discord channel.
Source: https://svelte.dev
What are the main performance benefits of using Svelte?
Svelte's compile-time approach produces significantly smaller JavaScript bundle sizes compared to frameworks that ship runtime code to the browser. The compiler generates only the code needed for your specific components, resulting in faster initial page loads, better runtime performance, and reduced bandwidth consumption, particularly beneficial for users on slower connections or older devices.
Source: https://svelte.dev
What deployment and hosting options does Svelte support?
SvelteKit includes adapters for major hosting platforms including Vercel, Netlify, AWS, and Node.js-based servers, allowing deployment as serverless functions or traditional server applications. Standalone Svelte components can be deployed anywhere JavaScript runs. The flexible adapter system enables deployment to virtually any modern hosting platform.
Source: https://svelte.dev
Svelte alternatives
Other frontend ui frameworks we track, ranked by the same independent score.
- Angularmedium · 52%
- Tailwind CSSRapidly build modern websites without ever leaving your HTMLlow · 31%
- PreactFast 3kB alternative to React with the same modern APIlow · 31%
- Vue.jsThe Progressive JavaScript Frameworkmedium · 54%
- ReactThe library for web and native user interfaceslow · 44%
- Vue.jsThe Progressive JavaScript Frameworklow · 40%
The Vioscale 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 Svelte, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package Downloads | 87 | 26.00 | 2270.8 | ✓ |
| Release Cadence | 98 | 10.00 | 983.3 | ✓ |
| Stackoverflow Activity | 71 | 12.00 | 847.0 | ✓ |
| Github Activity | 45 | 18.00 | 811.1 | ✓ |
| Github Stars | 93 | 5.00 | 466.2 | ✓ |
| Capabilities | 29 | 16.00 | 462.5 | ✓ |
| Integrations | 0 | 8.00 | 0.0 | - |
| Security Posture | 5 | 13.00 | 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 | 26 | mediumsource · 2026-08-01 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | [{"answer":"Svelte is an open-source UI framework that uses a compiler to convert declarative component code into efficient vanilla JavaScript that runs in the browser. Rather than shipping a runtime framework to users, Svelte moves the heavy lifting to build time, resulting in minimal, optimized code that surgically updates the DOM. This compiler-first approach produces smaller bundle sizes and better runtime performance compared to traditional runtime-based frameworks.","source":"https://svelte.dev","question":"What is Svelte and how does it work?","confidence":0.95},{"answer":"Yes, Svelte is a free, open-source project released under the MIT license. It is maintained by Vercel and a community of volunteer contributors, with no licensing fees, paid tiers, or commercial restrictions. Anyone can use, modify, and distribute Svelte for any project.","source":"https://github.com/sveltejs/svelte","question":"Is Svelte free and open source?","confidence":0.98},{"answer":"Svelte uses standard web technologies: HTML for structure, CSS for styling, and JavaScript for interactivity. Developers write components using these familiar languages without needing to learn a specialized syntax or framework-specific language extensions. TypeScript support is also available for developers who prefer static typing.","source":"https://svelte.dev","question":"What languages and technologies does Svelte use?","confidence":0.95},{"answer":"SvelteKit is a full-stack framework built on top of Svelte that handles routing, server-side rendering, static site generation, and deployment configuration. Use SvelteKit when building complete web applications that need server-side functionality, form handling, and data management; use standalone Svelte when building individual components or component libraries.","source":"https://svelte.dev","question":"What is SvelteKit and when should I use it?","confidence":0.93},{"answer":"Yes, Svelte receives consistent maintenance and updates from its development team and community. The project publishes monthly releases documenting new features across Svelte, SvelteKit, and related tooling, with recent focus on developer experience, TypeScript integration, async functionality, and tooling improvements.","source":"https://svelte.dev/blog","question":"Does Svelte have active development and regular updates?","confidence":0.92},{"answer":"Svelte consistently ranks highly in developer satisfaction surveys, including top positions in Stack Overflow and State of JavaScript surveys. It is praised for its approachable design and powerful capabilities, attracting developers across skill levels. The framework has a growing community supported by Svelte Society events and an active Discord channel.","source":"https://svelte.dev","question":"How popular is Svelte among developers?","confidence":0.9},{"answer":"Svelte's compile-time approach produces significantly smaller JavaScript bundle sizes compared to frameworks that ship runtime code to the browser. The compiler generates only the code needed for your specific components, resulting in faster initial page loads, better runtime performance, and reduced bandwidth consumption, particularly beneficial for users on slower connections or older devices.","source":"https://svelte.dev","question":"What are the main performance benefits of using Svelte?","confidence":0.92},{"answer":"SvelteKit includes adapters for major hosting platforms including Vercel, Netlify, AWS, and Node.js-based servers, allowing deployment as serverless functions or traditional server applications. Standalone Svelte components can be deployed anywhere JavaScript runs. The flexible adapter system enables deployment to virtually any modern hosting platform.","source":"https://svelte.dev","question":"What deployment and hosting options does Svelte support?","confidence":0.88}] | highsource · 2026-07-30 · 93% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"paradigm":"Compiled reactive UI framework","bundle_size":"tiny","virtual_dom":false,"component_model":true} | mediumsource · 2026-08-01 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | JavaScript | highsource · 2026-08-01 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-08-01 · 99% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | {"source":"https://svelte.dev","confidence":0.95,"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]} | highsource · 2026-07-30 · 95% |
Pricing
Release
| Attribute | Value | Evidence |
|---|---|---|
| Cadence days | 3 | mediumsource · 2026-08-01 · 70% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Disclosure policy | Yes | mediumsource · 2026-08-01 · 60% |