Free Sports Betting Tools in 2026: Odds Screens, +EV, Arbs and Calculators

The best free sports betting tools in 2026 cover five jobs: comparing odds (OddsShopper, Odds Assist, Action Network), finding value and +EV bets (OddsFantasy's live preview, BetBurger's free version), spotting arbs (Surebet, OddsShopper, OddsFantasy), doing the maths (OddsFantasy's free calculators) and tracking bets (Pikkit). Free plans teach the method; the full feeds stay on paid plans.

Key numbers

• OddsFantasy's value feed listed 4,269 distinct pre-match value bets across 1,009 matches and 14 bookmakers in the 24 hours to 21 October 2026, 12:00 UTC: about 178 an hour.
• The median value bet was +2.37% EV against Pinnacle's no-vig line, and 35.9% were +3% or better.
• 39% of value-bet listings were gone within 5 minutes; the median lasted 8.9 minutes.
• In the same 24 hours the arbitrage feed listed 5,599 arbs; 31.8% returned more than 1%, the cap on Surebet's free plan.

Those numbers explain how free plans are built. They show enough to learn the method, and keep back the volume, the biggest edges and the speed that make it pay.

Free odds screens

An odds screen shows every bookmaker's price for the same market side by side, so you always bet the best line. OddsShopper's free tier includes its odds screen, line shopping and no-vig pricing (OddsShopper). Odds Assist compares odds and lines with a free account (Odds Assist). Action Network's public odds pages list US sportsbooks next to the Polymarket and Kalshi prediction markets, with more features on Action PRO (Action Network).

Free value betting and +EV tools

A value bet, or positive EV bet, is a price better than the fair odds. Finding them needs a fair line and fast data, which is why most +EV screens are paid. These are the free ways in:

• OddsFantasy: every free account gets a live preview of the pre-match positive EV feed, with the newest value bets in full and the pick hidden on the best ones. Value is measured against Pinnacle's no-vig odds, with Polymarket, Kalshi and exchange fees taken off first. The full feed is on Classic, $80 for 30 days paid once (positive EV finder).
• BetBurger: its free version covers prematch and live value bets as well as surebets, with "some limits and delays" (BetBurger).
• Surebet: the free plan includes a limited number of value bets alongside surebets up to 1% (Surebet).
• OddsShopper: free no-vig pricing lets you check a line by hand; its ranked +EV screen is on the paid Core and Pro plans.

Free arbitrage tools

Surebet shows arbs up to 1% for free and OddsShopper up to 2% ROI, Odds Assist and Oddspedia list arbs after a free sign-up, and OddsFantasy previews its arbitrage feed on every free account. We compared seven of them, with what each free plan hides, in free arbitrage betting software.

Free betting calculators

Every OddsFantasy calculator is free. They cover the maths behind value betting and arbitrage:

• EV calculator: expected value of a bet from your odds and win probability.
• Vig calculator: a bookmaker's margin and the no-vig fair odds.
• Implied probability calculator: turns odds into the probability they imply.
• Kelly calculator: stake size with full, half or quarter Kelly.
• Arbitrage calculator and hedge calculator: stakes that lock in a result.
• Parlay and accumulator calculator: total odds and payout for 2 to 20 legs.
• Buy odds converter and risk calculator: exchange to bookmaker odds, and the maximum loss of a positive EV plan.

Free bet trackers

Tracking every bet shows whether your edge is real. Pikkit says its app is free; its BookSync feature syncs bets from your sportsbook accounts, and Pikkit Pro adds premium features (Pikkit). OddsFantasy's bet tracker is part of Classic.

Free Polymarket and Kalshi tools

Prediction markets now price the same games as sportsbooks. In the same 24 hours, OddsFantasy's value feed found 354 value bets on Polymarket and 65 on Kalshi. Free tools for them:

• OddsFantasy's Polymarket trading terminal is free: charts, order book, market, limit and quote orders, take-profit, stop-loss and time closes, plus one automated entry preset and one exit preset.
• Odds Assist's free arbitrage finder includes Polymarket and Kalshi among its 23 books (Odds Assist).
• Action Network's odds pages show Polymarket and Kalshi prices next to US sportsbooks.
• For where the two venues' prices disagree, see our data on Polymarket and Kalshi arbitrage.

What free plans hold back

• The best picks: previews hide them, and caps cut off the biggest edges.
• Speed: 39% of value bets in our feed were gone within 5 minutes, so delays cost the most.
• Volume: about 178 value bets an hour went through our feed; free plans show a handful.
• Extras such as alerts, filters, bet tracking and automation.

Start free, learn the method and track every bet. Pay when you bet every day and the hidden picks and lost minutes start to cost more than the plan. For paid tools and their prices, see best value betting software and best arbitrage betting software.

How we measured this

Every value bet and arb that enters the OddsFantasy feed is logged with when it was first seen and when it disappeared. The figures cover pre-match listings first seen between 20 October 2026 12:00 UTC and 21 October 2026 12:00 UTC. A distinct value bet is one match, market, selection and bookmaker, however often it was relisted; EV is measured against Pinnacle's no-vig odds after fees. Free plans come from each tool's own page on 21 October 2026 and change often. Trade responsibly: stake only what you can afford to lose.