# Thirdweb Svelte

*An open-source community Svelte SDK for thirdweb, by Holdex*

**Authors:** [Vadim Zolotokrylin](https://holdex.io/c/learn/vadim-zolotokrylin)

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Thirdweb is one of the dominant Web3 developer platforms. Its official SDKs ship for React, React Native, and Unity. They don't ship for Svelte, and a fair chunk of Holdex's frontend work runs on Svelte. The gap was obvious enough to fill.

[Thirdweb Svelte](https://github.com/holdex/thirdweb-svelte) is a Holdex-published community SDK that wraps thirdweb's Web3 primitives in Svelte ergonomics. Authored, maintained, and shipped by Holdex.

## What it does

The package exposes the standard developer surface that thirdweb developers expect, ported into Svelte.

- **`ThirdwebSvelteProvider`.** The setup component that wires up the thirdweb client across a Svelte app.
- **`ConnectWalletModal`.** Wallet-connection UI with customisable chains and wallet types, sized to drop into existing Svelte apps without reskinning.
- **`ExportPrivateKeyModal`.** The flow for users on inApp wallets who want to export their key.
- **`getThirdwebSvelteContext`.** The accessor for inner components that need to reach the thirdweb client.

The SDK supports both Svelte 4 (the v0.x line, last published as 0.2.18) and Svelte 5 (v1.x and onward). Recent npm versions include the Svelte-5-only refactor in July 2025, wallet-image export in September 2025, and a publishing-pipeline migration to a trusted GitHub Action npm publisher in February 2026.

## Holdex's role

End-to-end. Holdex authored, maintains, and publishes the SDK from [github.com/holdex/thirdweb-svelte](https://github.com/holdex/thirdweb-svelte). The demo at [thirdweb-svelte.vercel.app](https://thirdweb-svelte.vercel.app/) runs the SDK against a live thirdweb deployment.

## The story

The SDK grew out of a practical Holdex need. We wanted thirdweb's wallet and contract primitives inside Svelte applications without forcing teams back into React. The result is a maintained package, a working demo, and a reusable integration layer for any Svelte team building on thirdweb.

## Links

- Source: [github.com/holdex/thirdweb-svelte](https://github.com/holdex/thirdweb-svelte)
- Demo: [thirdweb-svelte.vercel.app](https://thirdweb-svelte.vercel.app/)
- npm: [@holdex/thirdweb-svelte](https://www.npmjs.com/package/%40holdex/thirdweb-svelte)