Sleeper League Importer

by SleeperBot · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Copy ESPN league history—including NFL.com leagues moved to ESPN—to Sleeper.

Users

10K

0 in 30 days

Rating

3.6 / 5

−0.07 in 30 days

Ratings

+2 in 30 days

Store rank

#8,962

#7,668 among extensions

Version

0.5.3

updated 15 Aug 2026

Users

monthly, 5 months

Latest, 15 Oct 2026: 10,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 15 Oct 2026: 20 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Sleeper League Importer

Import fantasy football league history into Sleeper from other platforms.

Growth

Window	Users	Change	Ratings	Rating
7 days	0	+0.0%	0	0.00
30 days	0	+0.0%	+2	−0.07

Chrome Web Store search rankings

Where Sleeper League Importer appears when people search the store, with the 30 day change

Search phrase	Position	30 days
league	#41	+25

Version history

12 versions recorded

0.5.315 Aug 2026

0.5.27 Aug 2026

0.5.11 Aug 2026

0.5.031 Jul 2026

0.4.129 Jul 2026

0.4.028 Jul 2026

0.3.021 Jul 2026

0.2.26 Jul 2026

Details

Category: Tools
First seen: 21 May 2026
Size: 606 KB
Languages: en
Pricing: Free
Privacy policy: sleeper.com
Extension ID: kpcokdpkaepgcefmhmkdinoolobjllcc

Permissions and risk

Moderate riskimpact 3, likelihood 2

Permissions

activeTabdeclarativeNetRequestsidePanelstoragetabs

Site access

https://www.espn.com/*https://fan.api.espn.com/*https://fantasy.espn.com/*https://fantasy.nfl.com/*https://fantasyfootball.nfl.com/*https://lm-api-reads.fantasy.espn.com/*https://nextgenstats.nfl.com/*https://sleeper.com/*https://sleeper.app/*https://api.sleeper.app/*