100% free betting tools

These have no paid tier (or the core product is free with nothing locked). No trial clock, no card. Ranked by the same score as the main list.

Devig Sports

Free Calculators100% freeNo signup

Free no-vig calculators for spreads, totals, props and multi-leg slips.

Free: Every calculator: devig for 2–4 way spreads, totals and props (four devig methods), a prop calculator for 2–6 leg slips, and a devig terminal. Ad-supported; the site says it's 100% free.

Catch: Calculators only: you bring the odds.

Score breakdown

How much is usable free	35/35	Everything is free (no paid tier, or the core product is free)
No signup / no card	15/15	Usable with no account
Data quality	17/20	Sharp/no-vig reference (7) · Works with any book (you enter odds) (4) · props: full (6)
Usefulness for +EV / line shopping	8/15	Supports the +EV workflow (devig, hedging, tracking, raw data)
Freshness	10/10	Calculator; worked on our check
Mobile app	0/5	Web only (or not verified)
Total	85/100

Price: Free · Checked Oct 16, 2026 · source

85/100

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Crazy Ninja Odds

Free Calculators100% freeNo signup

The classic devigger plus free-bet and risk-free-bet calculators.

Free: The classic devigger, hedge calculator, free-bet / risk-free-bet / odds-boost pages and more, no login shown.

Catch: Site says it's still a work in progress; calculators are partly hosted on the older site. We haven't verified prop support or how much of the +EV and arbitrage pages is free.

Score breakdown

How much is usable free	35/35	Everything is free (no paid tier, or the core product is free)
No signup / no card	15/15	Usable with no account
Data quality	11/20	Sharp/no-vig reference (7) · Works with any book (you enter odds) (4) · props: none (0)
Usefulness for +EV / line shopping	8/15	Supports the +EV workflow (devig, hedging, tracking, raw data)
Freshness	10/10	Calculator; worked on our check
Mobile app	0/5	Web only (or not verified)
Total	79/100

Price: not listed on site · Checked Oct 16, 2026 · source

79/100

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LineGoat

Odds Screens & +EV100% freeNo signup

Free daily +EV edges: Pinnacle no-vig fair odds vs. the best price at 9 US sportsbooks, with a public results and CLV tracker.

Free: Everything: the daily Edge of the Day plus runners-up, desk picks, a public results and CLV tracker, a tools directory and promo codes.

Catch: Only 9 US books, moneylines and spreads only (no props), and one scan a day, so it's a short daily list, not a live screen.

Same owners as freebettingtools.com

Score breakdown

How much is usable free	35/35	Everything is free (no paid tier, or the core product is free)
No signup / no card	15/15	Usable with no account
Data quality	9/20	Sharp/no-vig reference (7) · Under 10 books (2) · props: none (0)
Usefulness for +EV / line shopping	12/15	+EV bets, but a short or limited list
Freshness	6/10	Updates once a day
Mobile app	0/5	Web only (or not verified)
Total	77/100

Price: Free (no paid tier) · Checked Oct 16, 2026 · source

77/100

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OddsPortal

Odds Screens & +EV100% freeNo signup

Global odds comparison and historical odds.

Free: Odds comparison pages across sports and markets, pre-match and in-play, plus historical odds and a bet calculator, viewable without an account.

Catch: Global/soccer-first; we haven't counted US books or verified prop coverage. Some extras (value bets, sure bets) may need an account.

Score breakdown

How much is usable free	35/35	Everything is free (no paid tier, or the core product is free)
No signup / no card	15/15	Usable with no account
Data quality	2/20	No sharp reference (0) · Book count not verified (2) · props: none (0)
Usefulness for +EV / line shopping	11/15	Line-shopping odds screen
Freshness	10/10	Updates continuously; loaded fine on our check
Mobile app	0/5	Web only (or not verified)
Total	73/100

Price: not listed on site · Checked Oct 16, 2026 · source

73/100

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AceOdds

Free Calculators100% freeNo signupiOS + Android

Bet calculators for singles, parlays and system bets.

Free: Bet calculators for singles, parlays and system bets (UK, US and Canada versions), plus iOS and Android calculator apps.

Catch: Settles bets; it doesn't devig or find value. UK-focused site with heavy sportsbook advertising.

Score breakdown

How much is usable free	35/35	Everything is free (no paid tier, or the core product is free)
No signup / no card	15/15	Usable with no account
Data quality	4/20	No sharp reference (0) · Works with any book (you enter odds) (4) · props: none (0)
Usefulness for +EV / line shopping	2/15	Other betting utility
Freshness	10/10	Calculator; worked on our check
Mobile app	5/5	iOS and Android
Total	71/100

Price: not listed on site · Checked Oct 16, 2026 · source

71/100

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Ranks shown are the tool's position in the overall free ranking.

Free plans worth knowing (limited)

PickTheOdds: An odds screen you can open with no account, plus a set of free +EV plays shown on the site.
OddsTrader: Odds board for spreads, moneylines, totals, props and futures across multiple books, plus line movement and guides.
PropsMadness: A few players per league with hit-rate charts and full game logs. No signup, no credit card. 'Free forever, not a trial.'
DawBets: Every tool (live +EV feed, odds comparison, boost builder, bet tracking), capped at 100 bets shown per week. No card needed.
Locktopus: Odds screen across every book (30+ incl. exchanges), 3 Prop Outlier reveals a day, Vig Remover and Odds Converter. No card.
The Odds API: 500 API credits a month covering all sports, most bookmakers (incl. Pinnacle and exchanges) and all markets. We use it ourselves.
BettingPros: Consensus odds from 10+ sportsbooks, some free expert picks, Bet Rating and EV on every prop, hit-rate history, sportsbook sync and bet tracking (per BettingPros' plan comparison).
Edge Hunters: Free plan of a matched-betting toolkit (offer guides, DutchMatcher, profit tracker); live odds from 80+ books.
Pikkit: Automatic bet tracking synced from 30+ sportsbooks, DFS apps and prediction markets, plus promo and boost reminders.
BetBurger: A free-forever plan (no credit card) plus free betting calculators.
BreadSync: Free tools including the free-bet calculator and example plays; the odds screen covers 130+ sportsbooks.
Linemate: Free iOS/Android/web app: trending plays, team and player hit rates and game logs (the app store listings call it free).
SportsGameOdds: Amateur API plan: 2,500 objects a month (one object = one game with all its odds), 10 requests a minute, odds refreshed every 10 minutes, 8 leagues (NFL, NBA, MLB, NHL, college football and basketball, Champions League, MLS) and 9 US books. Spreads, moneylines, totals, player and team props, live odds, fair odds, scores and stats are all included. The free plan is never charged, but a card is required at signup.

100% free betting tools

Devig Sports

Crazy Ninja Odds

LineGoat

OddsPortal

AceOdds

Free plans worth knowing (limited)

Get one free +EV bet every morning