Web tool that imports a Sleeper or public ESPN league and suggests trades from the actual rosters, using FantasyCalc values and weekly projections, with reports on both teams' projected lineups and roster strength. No account needed.

Free dynasty toolset from StatChasers that reads your connected league for a trade calculator and finder, dynasty and rookie pick values, start/sit, waivers, power rankings and playoff odds. Its dynasty values are also offered as a free public JSON API with attribution.
- Free
- ESPN
- Fleaflicker
- MyFantasyLeague

Swipe-style trade matcher: each manager gets a daily deck of suggested trades and both are notified when they both swipe right. A Scout tool finds trades around chosen players from real league rosters.
- Free tier + paid
- ESPN
- Fleaflicker
- Sleeper

Dynasty fantasy football trade site: trade calculator with superflex, 1QB, TE premium and startup modes, community-driven player values and rankings (including rookies and IDP), a fair-trade finder, trade database and draft grader, plus a redraft calculator.
Web tool on Fantasy Query that takes a Sleeper league ID and lays out every roster by position against real NFL stats in the league's scoring, to spot strengths, weaknesses and depth when hunting for trades.

Dynasty-focused fantasy site for football, basketball and baseball: rankings, a free trade calculator, player value pages, advanced metrics and league imports. Paid plans add AI trade finding, film breakdowns and portfolio tools.
- Free tier + paid
- ESPN
- Fleaflicker
- Sleeper