JavaScript Sync

Open-source JavaScript projects categorized as Sync

Top 14 JavaScript Sync Projects

  • pull

    🤖 Keep your forks up-to-date via automated PRs

  • floccus

    :cloud: Sync your bookmarks privately across browsers and devices

    Project mention: Can Chrome Sync or Firefox Sync be trusted with sensitive data? | | 2023-08-29

    There are solutions external to the browsers that work pretty well and where you have control on your data :

    Floccus for bookmarks ( : it works also on mobile devices : a great plus ! You need only a webdav server (or a Nextcloud account), I use Dave (

    Vaultwarden for the passwords (

    A huge advantage of this solution is that you can have synchronization also between different browsers and on mobile devices.

  • SurveyJS

    A Non-Cloud Alternative to Google Forms that has it all.. SurveyJS JavaScript libraries allow you to easily set up a robust form management system fully integrated into your IT infrastructure where users can create and edit multiple dynamic JSON-based forms in a no-code form builder. Learn more now.

  • remotestorage.js

    ⬡ JavaScript client library for integrating remoteStorage in apps

  • better-onetab

    :bookmark_tabs: A better OneTab for Chrome :memo: Temporarily removed from firefox :construction: V2 is WIP

  • TbSync

    [Thunderbird Add-On] Central user interface to manage cloud accounts and to synchronize their contact, task and calendar information with Thunderbird

    Project mention: Our Fastest, Most Beautiful Release Ever: Thunderbird 115 “Supernova” Is Here | | 2023-07-12

    What I mean is that if you have an Outlook account, and you want to use Thunderbird for it, you will need to sync your Outlook calendar with Thunderbird. Outlook uses Exchange ActiveSync instead of CalDav/CardDav for this syncing.

    The way to give Thunderbird these capabilities are by installing these two connected addons [1, 2]. At least till June 2022, I could see meeting invites from colleagues in Thunderbird. I would also see the translucent event in the calendar in Thunderbird. But accepting the invite would not work [2]. Also creating and sending Outlook calendar events from within Thunderbird didn't work. So, I always had to open the web Calendar to do these things. Thunderbird was only good for meeting reminders.

    There is a new major release of the addon since then, so it is possible that the bug is fixed.

    > I apparently don't get event invites from Outlook Calendars then

    Obviously if your email/calendar account is something else, then you have no problem. If someone sends an invite to my gmail, from their outlook, I can accept it fine from within Thunderbird, because Thunderbird/gmail are communicating using Caldav (I think).

    > Which clients do work with that then, only Outlook itself?

    I will use Thunderbird as much as possible till it is pried from my cold dead hands!



  • plex-sync

    :clapper: Command line utility for synchronizing Plex Media Server watched / seen status between multiple servers

  • strapi-plugin-config-sync

    :recycle: CLI & GUI for continuous migration of config data across environments

    Project mention: Goodbye 2022, Hello 2023! Strapi Wrapped in One Year | | 2023-01-30

    Strapi wouldn’t be anything without its community, which is very much represented by its Community Stars. The Write for the Community program resulted in 148 new articles being published, for a total of 1.3M views. 2022 was also the year of the launch of the Strapi Community Organization, a group of community members dedicated to empowering initiatives and highlighting them. Boaz, Mattie, Sacha, and Simen have been invaluable contributors to the Strapi Community, going above and beyond by developing open-source plugins and tools. Strapi config-sync plugin, mattie-strapi-bundle (for search), Strapi REST cache plugin, Dockerize tool, and more!

  • Appwrite

    Appwrite - The open-source backend cloud platform. The open-source backend cloud platform for developing Web, Mobile, and Flutter applications. You can set up your backend faster with real-time APIs for authentication, databases, file storage, cloud functions, and much more!

  • locize-cli

    locize cli to import / export locales, add / edit / remove, sync segments

  • YNABGoingDutch

    A converter between the CSV format of Dutch banks and the YNAB format. Or sync your bank statement directly with YNAB!

  • Google-Script-Contacts-Sync

    Synchronize Google contacts across multiple accounts.

  • sync-fork

    the quickest way to sync your fork: npx sync-fork

  • musicbee-navidrome-sync

    CLI tool to sync a Navidrome DB with data from a MusicBee DB (playcounts, ratings, loved tracks, last played date...)

    Project mention: Feeling Devastated -- my music management method is failing. Any recommendations? | /r/musichoarder | 2022-10-10

    MusicBee is an excellent local player, and I guess there's some kind of tool to import itunes library metadata, like playcounts and ratings. If you want to set up your library online, you can use Navidrome. And if you want to use them both (MusicBee locally, Navidrome on the go) and feel the need to sync data from MusicBee to Navidrome, I've created a small CLI tool to do just that:

  • Leetcode-SyncInAction

    GitHub Action to Sync your Leetcode Accepted Solution with GitHub repo acts as a personal leetcode archive.

  • CharacterSync

    A Chrome extension that grabs your Dungeons & Dragons character's stats from various platforms like D&D Beyond and Harmless Key.

    Project mention: D&D Character Sync Extension | /r/dndnext | 2023-02-10

    P.S the extension is open source on Github so if you’re a developer of a tool, send in your pull requests.

  • Amplication

    Amplication: open-source Node.js backend code generator. An open-source platform that helps developers build backends without spending time on boilerplate & repetitive coding. Including production-ready GraphQL & REST APIs, DB schema, DTOs, filtering, pagination, RBAC, & more.

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). The latest post mention was on 2023-08-29.

JavaScript Sync related posts


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

Project Stars
1 pull 5,018
2 floccus 4,382
3 remotestorage.js 2,258
4 better-onetab 1,602
5 TbSync 746
6 plex-sync 296
7 strapi-plugin-config-sync 225
8 locize-cli 55
9 YNABGoingDutch 46
10 Google-Script-Contacts-Sync 17
11 sync-fork 15
12 musicbee-navidrome-sync 8
13 Leetcode-SyncInAction 3
14 CharacterSync 2
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