Free web trade evaluator for fantasy football: enter players given and received, optionally set scoring, league type, superflex and TE premium or import a Yahoo or Sleeper roster, and get an A-F grade for your side of the trade.

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

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.

Free dynasty rankings and trade calculator using values blended from FantasyCalc, KeepTradeCut, Dynasty Daddy and RosterAudit, with pick values, rookie ADP, a Sleeper draft assistant and roster audits for Sleeper leagues looked up by username.

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
Trade analyzer for ESPN leagues that imports your league through a companion Chrome or Edge extension, scores trades by how each team's best starting lineup changes on ESPN projections, finds trades with every team, and flags news and sell-high or buy-low players.
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.

Web tool that loads a Sleeper, MFL or Fleaflicker league by username or league ID and suggests trades, waiver priorities and start/sit calls from daily-updated trade values. Also has a standalone trade calculator, value chart and risers/fallers list; Pro adds an AI analyst.
- Free tier + paid
- Fleaflicker
- MyFantasyLeague
- Sleeper
Fantasy football trade values and rankings computed from millions of real league trades, adjusted for Superflex, TE premium, PPR and team count. Includes a trade calculator, trade database, dynasty and redraft rankings, a free league analyzer with power rankings, start/sit, waiver and draft tools.
- Free tier + paid
- ESPN
- FFPC
- Fleaflicker
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.

Free dynasty fantasy football player and pick values built from crowdsourced keep/trade/cut votes and real trades, with a trade calculator, 1QB and superflex rankings, league power rankings, trade and draft databases, and weekly start/sit rankings.
- Free
- Fantrax
- FFPC
- Fleaflicker

Free, no-login tools for Sleeper leagues led by a trade analyzer that grades every league trade on value then, value now and points scored since. Also mock drafts, a live draft assistant, draft grades, start/sit, waiver and FAAB help, and playoff odds.

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
Community trade feedback tool from Fantasy Genius: submit a fantasy football trade, entered by hand or imported from a Sleeper league, and other users vote on a five-step scale from fleece to even, shown as a vote split, with a voter leaderboard and user profiles.