JavaScript substrate

Open-source JavaScript projects categorized as substrate
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Top 3 JavaScript substrate Projects

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substrate

  1. Grants-Program

    Web3 Foundation Grants Program

  2. AppSignal

    Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.

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  3. substrate-ledger-ed25519

    Extract Substrate and Polkadot compatible ed25519 keys from Ledger mnemonic phrases

  4. substrate-docs

    Substrate Developer Hub. Substrate is powered by best in class cryptographic research and comes with peer to peer networking, consensus mechanisms, and much more.

    Project mention: Polkadot: Streaming Parachain events with Polkadot-API (PAPI) library; a Paseo Asset-Hub case study. | dev.to | 2025-10-21

    On Polkadot (and sister chain Kusama), events are fundamentally baked into the State Transition Function itself, the Substrate Runtime (i know, crazy). The events represent state changes, like a token transfer or a balance update, without being part of the main transaction itself, if you’re familiar with Ethereum logs or Solana program logs, then it's practically the same thing thing being mentioned here, Polkadot events serve the same purpose.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

JavaScript substrate discussion

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JavaScript substrate related posts

  • Polkadot: Streaming Parachain events with Polkadot-API (PAPI) library; a Paseo Asset-Hub case study.

    4 projects | dev.to | 21 Oct 2025

  • Deloitte Taps Polkadot Ecosystem's Kilt Blockchain for Digital Shipping Logistics

    1 project | /r/CryptoCurrency | 7 Dec 2023

  • SVM on Polkadot/Kusama

    1 project | /r/dot | 6 Dec 2023

  • Polkadot Digest 29 Sep 2023

    1 project | /r/Polkadot | 1 Oct 2023

  • Polkadot Digest 11 Sep 2023

    1 project | /r/Polkadot | 12 Sep 2023

  • Polkadot Digest 8 Aug 2023

    1 project | /r/Polkadot | 10 Aug 2023

  • Polkadot Digest 6 Jul 2023

    1 project | /r/Polkadot | 5 Jul 2023
  • A note from our sponsor - SaaSHub
    www.saashub.com | 7 Oct 2026
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Index

What are some of the best open-source substrate projects in JavaScript? This list will help you:

# Project Stars
1 Grants-Program 1,190
2 substrate-ledger-ed25519 155
3 substrate-docs 141

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