Best DFS Lineup Optimizers (2026): An Honest Comparison
Six tools show up when you search for a DFS lineup optimizer: SaberSim, Stokastic, RotoWire, FantasyLabs, Daily Fantasy Fuel, and us. We built FantasySportsEdge, so weigh our angle accordingly. What follows is what each one actually does, checked against their own feature pages on 2026-09-25.
If you want free, unlimited lineups across NBA, WNBA, MLB, and NFL with no card on file, that's us. If you want tournament simulations from a team built around GPP modeling, SaberSim or Stokastic do that. If you only play NFL and want one free lineup, RotoWire has that too.
The verdict, up front
| Tool | Free option | Sports | Best for |
|---|---|---|---|
| FantasySportsEdge | Full builder, unlimited lineups | NBA, WNBA, MLB, NFL | Free, multi-sport lineup building with no paywall anywhere |
| RotoWire | Free NFL optimizer | NFL, MLB, NBA, NHL, soccer, golf, CFB, CBB, WNBA | Budget option bundled with season-long and betting content |
| SaberSim | None (paid trial available) | 17 sports and esports categories, including WNBA | Tournament simulations for GPP-focused players |
| Stokastic | Unclear | NFL, NBA, MLB, NHL, WNBA, PGA, CFB, NASCAR, MMA | Sims, ownership, and projections for building GPP lineups |
| FantasyLabs | None confirmed (gated trial) | NFL, NBA, MLB, NHL, PGA, MMA, NASCAR, WNBA, CFB, CBB | Player Models and backtesting to build your own projections |
| Daily Fantasy Fuel | DK/FD optimizer, 2 lineups per build | NBA, NFL, MLB, PGA (WNBA pages exist but aren't on the Premium plan card) | Ownership projections and a Prop Explorer bundled with Premium |
Features checked 2026-09-25 and change without notice. We don't publish competitor prices; check each site directly for current plans.
What does the Fantasy Fuel optimizer include?
Daily Fantasy Fuel's free tier is a DraftKings and FanDuel optimizer capped at 2 lineups per build. Its Premium plan adds ownership projections, a Prop Explorer, Analytics/Trends, and dedicated PrizePicks and Underdog optimizers. We don't publish a price for it here — see their pricing page for current plans.
Is FantasySportsEdge actually free?
Yes. Sign in with a free account and every lineup builder is open: NBA, WNBA, MLB, and NFL, classic and single-game slates, unlimited generations, no card required. That's the whole pitch. What we don't have: no ownership-projection sims, no player-prop tools, no betting content. If you're chasing any of that, one of the five tools below does it better than we do.
What does SaberSim offer, and who's it for?
SaberSim covers 17 sports and esports categories including WNBA, and its pitch is built on tournament simulations rather than single-point projections. That's a real edge if you play large-field GPPs and want a diverse pool of lineups built fast. It offers a paid trial, not a free tier, so it's not built for someone who wants to check one lineup for free.
What does Stokastic offer?
Stokastic covers NFL, NBA, MLB, NHL, WNBA, PGA, college football, NASCAR, and MMA, and its own copy positions it around projections, ownership, and simulations, the same category as SaberSim. It doesn't advertise a free tier. We don't list a price for it here; check their signup flow directly for current plans.
Is RotoWire's DFS optimizer free?
The NFL optimizer is; RotoWire says so on the page itself. Everything past that sits behind a subscription that also covers MLB, NBA, NHL, soccer, golf, college football, college basketball, and WNBA. RotoWire's angle is breadth: season-long tools, DFS, and betting content in one account.
Is FantasyLabs still around, and what does it do?
Yes, and it covers ten sports including WNBA, NFL, NBA, MLB, NHL, PGA, MMA, NASCAR, college football, and college basketball. It's sold sport by sport through a signup flow. What it's built for: Player Models and SimLabs backtesting, so you build and test your own projections instead of trusting someone else's. We couldn't find a genuinely free tool; the trends page we checked pushes a paid trial with no free path.
The honest bottom line
All five competitors have WNBA pages or coverage, although Daily Fantasy Fuel does not list it on the Premium plan card, so that filter alone won't narrow the field. What actually separates them is whether the free version does anything real and what each one is built for. SaberSim and Stokastic are built for GPP simulation. RotoWire gives away one free lineup and charges for scale or betting content. FantasyLabs charges for the ability to build your own model. Daily Fantasy Fuel offers a capped free optimizer and bundles ownership and prop tools with Premium. We give away the full multi-sport builder and don't have the sims or model-building tools the others do.
Pick based on what you actually need, not which page ranked first.
Common questions
- Which DFS lineup optimizer is actually free?
- FantasySportsEdge is the only one here with a full, unlimited free builder across every sport it covers. Daily Fantasy Fuel caps its free DK/FD optimizer at 2 lineups per build, and RotoWire gives away one free NFL lineup; everything past that, and everything on SaberSim, Stokastic, and FantasyLabs, is paid.
- Do any of these cover WNBA?
- All six have WNBA pages or coverage, although Daily Fantasy Fuel doesn't list WNBA on its Premium plan card. Coverage alone doesn't narrow the field, so don't use it as your only filter.
- Which one should I use for GPP tournaments?
- SaberSim or Stokastic. Both are built around simulations and ownership modeling instead of single-point projections, which is what large-field tournaments reward. We don't have that.
- Does FantasySportsEdge require a credit card?
- No. Sign in with a free account and every lineup builder is open.