A supplemental Chrome extension for 4for4.com LeagueSync to sync ESPN leagues.

What is LeagueSync?
LeagueSync is a highly functional Chrome Extension from 4for4 Fantasy Football. This extension plays a vital role in allowing 4for4.com to authenticate with ESPN, enabling users to seamlessly sync their ESPN fantasy leagues with 4for4.com. The integration of this extension is essential for ensuring smooth and efficient fantasy league operations on ESPN through 4for4.com. Simplify your fantasy football experience with LeagueSync.
Users: 4,000+
Rating: 5.00 (11)
Version: 1.1 (Last updated: 2021-09-17)
Creation date: 2021-09-11
Risk impact: Low risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 3
  • storage
  • cookies
Host permissions:
  • *://*.espn.com/*/*
  • *://*.4for4.com/*
  • *://*.pre.4for4.com/*
  • *://localhost/*
Size: 66.39K
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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The LeagueSync Chrome Extension from 4for4 Fantasy Football allows LeagueSync to authenticate with ESPN. This extensions is required to sync your ESPN fantasy league on 4for4.com.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Works great to sync rosters with 4for4 account
  • Updated version functioning properly for 2021
  • Efficient and quick customer service in resolving ESPN issue
  • Extension now compatible with updated ESPN platform
  • Initially did not work, even with a fresh Chrome install
  • Outdated 'create custom league' screen displaced instead of the expected display after logging into ESPN
Most mentioned
  • Problem with ESPN compatibility was resolved
  • Works well with 4for4 services
  • Quick and beneficial developer responses
Recent reviews
Terrific addition to 4for4 tools! The extension works great to sync rosters with my 4for4 account. Great job working with the ESPN beast!
by Tim Horgan Tim Horgan, 2021-09-22

Recent update functional for 2021. Working great for espn. Love 4for4.com
by Charlton Nguyen Charlton Nguyen, 2021-09-19

One of the features that put 4for4 above the rest! This site never disappoints. I highly recommended to anyone that is a fan of fantasy football.
by Anthony Jamo Anthony Jamo, 2021-09-18
View all user reviews
Risk impact

LeagueSync is relatively safe to use as it requires very minimum permissions.

Risk likelihood

LeagueSync has earned a good reputation and can be trusted.

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