UK Casino Bonuses and Free Spins Explained

For UK players, even the smallest deposit can unlock serious value. A 1 pound deposit casino lets you test a site with minimal risk while still qualifying for welcome packages that often include a 100 deposit bonus once you decide to top up. Many operators add a modest 10 free spins on a popular slot, giving you a chance to see how the games perform before committing more of your bankroll.

If you would rather not pay anything at all, no deposit offers are worth a closer look. A 100 free spins no deposit deal can be claimed simply for registering an account, and some brands go further with a 100 free welcome bonus no deposit required that credits real cash on top of the spins. The most generous packages currently advertise 1000 free spins no deposit, although these tend to carry stricter wagering terms, so reading the small print is always sensible.

Players chasing slot-specific promotions will find plenty of choice too. Big payouts on the reels are often targeted with 120 free spins for real money, and fans of Play'n GO titles can look out for a 150 free spins no deposit book of dead offer tied to the ever-popular Egyptian adventure. Standard packages featuring 150 free spins no deposit remain the most common across UK-licensed sites, while newcomers on a tight budget can begin with a 20 free no deposit casino bonus and build from there.

UK Casino Bonuses and Free Spins Explained

For UK players looking to get more from their first deposit, there is a wide range of welcome offers to explore. If you are after a generous boost to your bankroll, a 200 deposit bonus can double your money, while high rollers might prefer a 300 deposit bonus for even more playing power. Those who want to try before they buy can often claim 20 free spins on registration no deposit, giving you a risk-free taste of the reels.

Free spins come in many shapes and sizes across UK casinos. Fans of the popular fishing-themed slot can enjoy 20 free spins no deposit big bass bonanza, a perfect way to chase those big catches without spending a penny. If you are looking for a slightly larger no-deposit head start, 25 free spins on registration no deposit is a common offer, and 30 free no deposit deals are also worth keeping an eye out for. Some sites even go further with 40 free spins no deposit, giving you plenty of chances to land a win.

When it comes to keeping what you win, the terms matter. A standout option is 30 free spins no deposit required keep what you win, which lets you pocket your winnings without making a deposit first. For those ready to commit, a 200 free spins package often comes with a matched deposit, while low-budget players can look for a 3 minimum deposit casino uk to start small and still access real-money play.

Online Casinos for UK Players: Bonuses, Payment Options and Safe Sites

Choosing an online casino in the UK is about more than flashy graphics. Players want clear terms, reliable payments and bonuses that actually suit their budget. If you prefer a smaller first payment, a 5 deposit casino can be a low-risk way to test a site, while a 400 deposit bonus often appeals to those ready to commit a larger amount and unlock extra funds. For no-deposit offers, a 5 free spins no deposit deal is a simple starting point, and more generous packages such as 50 free spins no deposit no wager or 70 free spins no deposit no wager can be especially attractive when wagering requirements are removed.

Payment methods also matter. An apple pay casino is convenient for mobile users who want fast deposits without entering card details repeatedly, while crypto fans may look for the best bitcoin casino to enjoy quicker transactions and added privacy. Before signing up, compare the best gambling sites for licensing, payout speed and customer support. UK players who are blocked by GamStop can explore best non gamstop casinos, but should always check the terms and responsible gambling tools. Finally, if you enjoy branded games, read an amazon slots review to see whether the slot's RTP, volatility and bonus features match your style.

Online Casinos, Bingo and Crypto Gaming in the UK

British players have never had so much choice when it comes to online gaming. Whether you prefer spinning reels on a classic fruit machine or claiming a generous casino welcome bonus to stretch your first deposit further, the UK market has something for every budget. New players often start by hunting down a casino no deposit bonus, as it lets you test the lobby and the payment process without risking your own money upfront.

Slots remain the most popular category by a wide margin, and titles such as the ever-popular fishing-themed series continue to top the charts. If you enjoy high-volatility action, the range of big bass slots available at UK-licensed sites is worth exploring. Players who prefer a faster, more modern experience can also try bitcoin slots, which settle instantly and often come with provably fair mechanics.

Bingo fans are well catered for too. A bingo no deposit bonus is a great way to try a new room free of charge, while a bingo sign up bonus usually adds extra tickets once you register and make your first deposit. Before committing to a new operator, it is always sensible to read an independent candyland casino review so you know exactly what to expect from the welcome package, wagering rules and withdrawal times.

Payment options matter just as much as the games. Many UK players still prefer a credit card casino because it is familiar and quick, although debit cards and e-wallets are now more widely accepted. For those who want something different, a crypto casino offers anonymity, low fees and near-instant payouts, and a crypto casino no deposit bonus is a smart way to sample the experience before funding an account. Whichever route you choose, always check the licence, read the terms and set a budget before you play.

UK Online Casino Bonuses and Reviews: Making Your First Deposit Go Further

For UK players comparing online casino welcome offers, low-deposit bonuses can be a smart way to explore a new site without risking a large amount. If you are looking for a simple starting point, a deposit 10 get 100 free spins deal gives you a modest entry point with extra spins on selected slots. Some operators go further by combining a £10 deposit with more generous spin packages and clearer terms, such as a deposit 10 get 200 free spins no wagering requirements offer. If you prefer maximum spins for your first payment, a deposit 10 get 300 free spins promotion may be worth checking before you sign up.

Not every UK casino player wants to deposit £10, so smaller deposits remain popular. A deposit 5 get 100 free spins no wagering requirements bonus can suit anyone testing a new platform with minimal commitment, while a deposit 5 get 200 free spins package offers more playtime for a very low outlay. Before claiming any offer, it is always worth reading independent reviews. Our donbet casino review covers key details such as bonus terms, payment methods and UK player support. For bingo fans, the double bubble bingo review explains what to expect from one of the better-known names, and the dream jackpot casino review looks at its slots, live games and welcome promotions.

Players who prefer newer brands can also compare the duelz casino review, which highlights game selection, mobile play and withdrawal processing. Finally, if you want to move beyond traditional banking methods, an ethereum casino may offer faster transactions and added flexibility. Whatever bonus you choose, check the UK licensing, wagering rules and payment limits so your first deposit works harder for you.

UK Online Casino Offers and Reviews

UK players looking for quick payouts often compare fast withdrawal casinos before choosing where to deposit. If you prefer to try a site with minimal risk, a free 10 no deposit bonus can give you a useful starting balance, while a free 5 no deposit casino is another low-commitment way to test the games.

Regular promotions can keep things interesting, especially when they include free daily spins or free slots no deposit rounds. Many visitors also search for free spins no deposit deals to explore new slots without making a first payment. Before signing up, it is worth reading a full gala casino review to check licensing, payout speed and bonus terms.

Payment methods matter too, and a google pay casino can be convenient for UK mobile users who want fast, secure transactions. Bingo fans may prefer to start with a happy tiger bingo review or a heart bingo review to compare room schedules, welcome offers and wagering requirements.

Finding the Right UK Casino in a Crowded Market

British players are spoilt for choice when it comes to online gambling, and the sheer number of brands competing for attention can make picking a site genuinely difficult. The smartest approach is to start with the type of player you are. If you like to play at higher stakes with bigger bonuses and personal account managers, the best high roller online casinos offer VIP schemes, higher deposit limits and tailored withdrawal terms that standard accounts simply cannot match. At the other end of the spectrum, players who have chosen to self-exclude through GamStop often look for independent casinos not on gamstop, which operate under their own licensing arrangements and verify players through alternative affordability checks.

Once you know what you want, the next step is research. Reading a full ivy casino review before signing up will tell you far more about payout times, wagering requirements and mobile performance than any promotional banner ever will. The same goes for the bigger household names: a detailed jackpotjoy casino review covers everything from the famous bingo rooms to the slot portfolio, while a king casino review focuses on welcome package value and ongoing promotions for returning players. Slightly newer arrivals deserve just as much scrutiny, which is why a kong casino review is worth checking before you commit your first deposit.

For players who prefer a dealer on screen rather than spinning reels, the range of live casino uk tables has expanded dramatically, with roulette, blackjack and game shows streamed in HD from professional studios. If your interests lean towards lotteries and jackpots instead, a lottogo casino review and a lottoland casino review will both explain how the betting-on-lottery model works, what the maximum payouts look like and how withdrawals are handled for UK customers. Finally, if you enjoy a fast, app-style experience with instant games and quick payouts, a madslots casino review rounds off the picture nicely.

Whichever direction you take, always check the licence, read the terms on bonuses and set a budget before you play. A little time spent comparing reviews at the start saves a lot of frustration later.

Online Casinos in the UK: What to Look For

British players have more choice than ever, and picking the right site usually comes down to banking options, mobile performance and the quality of the game library. If card payments matter most, a mastercard casino keeps deposits instant and familiar, while anyone who prefers a wallet-based approach will find a muchbetter casino often settles withdrawals within minutes rather than days.

Before signing up, it pays to read expert write-ups rather than relying on banner advertising. A detailed mega casino review covers licensing, bonus terms and payout speeds, while a megaways casino review explains how the mechanic changes volatility and hit frequency. Player-focused write-ups such as an mr q casino review or an mr vegas casino review make it easier to compare welcome offers side by side, and an mystake casino review is worth checking if crypto-friendly banking is a priority for you.

Most UK traffic now comes from handsets, so mobile casinos with responsive lobbies and instant-play titles tend to win out. The best mobile slots load in seconds, hold their framerate on 4G and keep the same RTP as the desktop version, which matters when you are playing in shorter sessions.

Finally, if you want the freshest promotions and the newest software providers, it is worth browsing new casino sites that launched over the past twelve months, as they often compete hardest on wagering requirements and bonus terms.

Online Casinos Outside GamStop: A Practical Guide for UK Players

Players across the UK often look beyond the standard licensed market when they want more flexibility over how they sign up, deposit and play. Whether you are chasing fresh releases or simply want a site that does not run affordability checks through GamStop, there is a wide range of options worth exploring. If you enjoy trying the latest releases before anyone else, our guide to new online slots covers the titles currently making waves across the major platforms.

One of the biggest draws for British players is speed. Sign-up processes that skip lengthy document uploads are increasingly popular, which is why so many people now search for no kyc casinos that let you register and play within minutes. The same demand drives interest in no verification casinos, where withdrawals are processed without the usual paperwork delays.

Bonuses matter too, and the market has responded. There are plenty of offers built around non gamstop casinos no deposit bonus promotions, letting you test a site without risking your own money. Low-stake players are equally well catered for, with non gamstop casinos uk 10 deposit options sitting alongside non gamstop casinos with 5 deposit sites that keep the entry point affordable.

Licensing is another factor worth understanding. Many of the most popular alternatives operate under Curacao regulation, and our breakdown of non gamstop curacao casino sites explains what that means for UK customers in practice.

Payment methods often decide where players eventually settle. Those who prefer topping up directly from their mobile can browse non gamstop pay by phone casinos, while e-wallet fans tend to favour non gamstop paypal casinos for the extra layer of separation between bank and betting account. Prepaid vouchers remain a firm favourite as well, and our selection of non gamstop paysafe casinos highlights the brands that handle Paysafe deposits smoothly.

Whichever route you take, always check the terms, wagering requirements and withdrawal limits before committing real money. Playing responsibly should always come first.

Online Casino UK: A Practical Guide for British Players

The United Kingdom has one of the most tightly regulated gambling markets in the world, and that is good news for anyone signing up for an online casino uk. Licensed operators must follow strict rules on fairness, advertising and player protection, so you always know what you are getting into. That said, plenty of British players still browse non uk casinos out of curiosity, often because of bigger welcome bonuses or games that are not always available domestically. If you do go down that route, check the licensing and withdrawal terms carefully before depositing anything.

Reading a proper review before you register saves a lot of time and frustration. Independent write-ups, such as a detailed nyspins casino review, break down bonus wagering requirements, game providers and payout speeds in plain English. The same goes for a full playojo casino review, which is worth checking if you like a site with a distinctive look and a well-stocked loyalty scheme. Reviews are the quickest way to compare what is actually on offer.

When it comes to the games themselves, online slots uk remain the clear favourite, from simple three-reel classics to megaways titles with thousands of ways to win. A huge share of those games comes from a single studio, so if you enjoy big bonus features it is worth searching specifically for pragmatic slots. Fans of a slower pace are equally well served, with online bingo rooms running around the clock and offering a friendly, chat-led alternative to spinning reels.

Payment methods often decide where players actually end up depositing. A pay by phone casino lets you charge deposits straight to your mobile bill, which suits anyone who prefers not to share card details. Others stick with a paypal casino for the added layer of buyer protection, while a paysafecard casino appeals to those who want to control spending with prepaid vouchers. Whichever you choose, set a budget first and treat the whole thing as entertainment rather than a way to make money.

UK Casino and Slot Guide for British Players

Choosing where to play in the UK is far easier when you start with proper research instead of flashy adverts. A detailed prime casino review shows you how a brand actually handles payouts, licensing and customer support before you deposit a penny, while a pub casino review is ideal if you prefer a site with a friendlier, more community-minded feel.

Classic slot fans are rarely short of options, and our rainbow riches casino review looks at where the much-loved Rainbow Riches series plays best. If you prefer to move money with e-wallets, the skrillnetellertrustly casino guide compares deposit speeds, fees and withdrawal limits across the main payment providers.

Fans of bingo-style hybrids should read our slingo casino review, which breaks down the mechanics, RTPs and bonus rules behind these games. For something with a bigger, bolder personality, the slot monster casino review covers everything from game libraries to mobile performance.

Many UK players start by hunting down slots free spins offers to test a site without risking much, though it is worth knowing that some brands sit outside UK regulation, which is why guides to slots not on gamstop remain popular with players who want fewer restrictions. Whichever route you take, always compare the slots sign up bonus terms, including wagering requirements and maximum win caps.

Finally, if you want a smooth, well-rounded experience from the first spin, the smooth spins casino review is a good place to finish your shortlist and decide where to sign up.

UK Online Casinos and Slots: A Quick Guide

Finding a trustworthy place to play matters more than ever for UK players, and a good starting point is reading an honest spin and win casino review before you commit any money. Brand loyalty still counts for a lot here, which is why so many people search for a detailed sun bingo review or a balanced sun vegas review to see how the big household names compare on bonuses, wagering rules and payout speed.

If slots are your focus, it helps to work from a curated shortlist rather than picking at random, so take a look at the top 10 best online slots for a tighter selection or browse the top 20 slots uk players rate most highly for volatility, RTP and feature frequency. Payment method also shapes the experience, and while crypto fans increasingly look for a usdt casino with fast withdrawals, most UK players still prefer the familiarity of a visa casino for instant deposits and straightforward banking.

Best Daily Spins UK 2026 Trusted Picks

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Best Daily Spins UK 2026 Trusted Picks

Walk into any casino marketing meeting and the same phrase comes up within minutes: lifetime value. A daily spins promotion is not charity; it is a retention engine, engineered to bring you back to the lobby tomorrow and the day after. Operators budget for these offers the way a supermarket budgets for loss leaders, and they expect to recoup the cost through the wagering you complete and the deposits you make once the free rounds run dry. None of that makes daily spins a bad deal for you — quite the opposite. It just means the smart player reads the terms beneath the headline before committing a single pound.

This guide cuts through the promotional noise to rank the best daily spins offers available to UK players in 2026. We have assessed each operator on the things that actually affect your bankroll: the fairness of the wagering, the quality of the eligible games, the speed of payouts and the reliability of customer support. The result is a practical shortlist you can act on today, not a catalogue of every spin bundle in existence. For a wider view of the market, our uk casino guide covers the full landscape of licensed operators.

How we rank daily spins offers

Our methodology starts with a simple question: if a player claims every daily spin offer from an operator for a month, what do they end up with? To answer that, we score each site against six criteria, weighted by how much they move the needle for a typical player.

Wagering fairness carries the heaviest weight at 25 percent. A low multiplier on a spin win is worth more than a generous spin count attached to a punishing turnover requirement. Game eligibility accounts for 20 percent; free spins are only valuable when they land on slots you would actually choose to play. Payout speed and reliability make up another 20 percent, because a casino that takes a fortnight to release your winnings is not serving you well regardless of its spin offers. Game variety and software quality contribute 15 percent, mobile experience 10 percent, and customer support responsiveness the final 10 percent.

Testing was conducted over a six-week period in late 2025. We claimed every offer we could, played through the wagering requirements where practical, and submitted real withdrawal requests to time the payouts. We also reviewed the full terms and conditions for each promotion, checking for restrictive game weighting, maximum win caps and other clauses that can quietly gut the value of a spin offer.

The ranked picks: best daily spins offers in the UK

Five operators made the final cut, each earning its place for a distinct reason. There is no single winner here because there is no single type of player; your priorities will determine which of these suits you best.

Operator Standout strength Standout metric Best for
Heart Bingo Low wagering on spin winnings 20x turnover on bonus funds Players who hate grinding requirements
Mega Casino Huge slot library 1,500+ slot titles Slot variety seekers
Bet365 casino Payout speed Under 4 hours for e-wallets Players who want cash fast
NetBet casino Mobile experience Native app for iOS and Android On-the-go players
Virgin Games casino Support quality Live chat response under 2 minutes Players who value assistance

Heart Bingo leads our ranking because its daily spins offer attaches the most forgiving wagering we found. Where many operators demand 35x or 40x on spin winnings, Heart Bingo sits at the lower end of the typical 20x to 65x band, meaning you keep more of what you win. The eligible games are also well chosen, with a strong spread of NetEnt and Playtech titles that hold up to extended sessions.

Mega Casino earns second place through sheer breadth. Its daily spins land on a rotating selection from a library exceeding 1,500 slots, so the offer rarely goes stale. The wagering is mid-range at 35x, but the variety means you are never forced to play a game you dislike to clear the requirement. For players who tire of the same three slots, this is the most sustainable daily offer on the market.

Bet365 casino takes third for operational excellence. Its daily spins offer is not the most generous in raw numbers, but the operator’s payout speed is unmatched in our testing, with e-wallet withdrawals landing in under four hours on every occasion. If your priority is converting spin winnings into spendable cash quickly, Bet365 is the reliable choice.

NetBet casino claims fourth place on mobile prowess. The native app handles daily spins claims with minimal friction, and the lobby loads quickly even on older handsets. The offer itself is solid rather than spectacular, but the experience of claiming it is the smoothest we tested.

Virgin Games casino completes the top five thanks to its support operation. When we raised a query about spin eligibility during testing, the live chat responded in under two minutes with a precise answer. For newer players who expect to ask questions, that responsiveness is worth a slightly less generous offer.

Category winners: where each operator excels

Beyond the overall ranking, distinct categories reward specific operators for specific strengths. These are the picks to note if you have a particular priority.

Best for payouts: Bet365 casino. The combination of fast e-wallet processing and a straightforward verification flow means your spin winnings reach you without unnecessary delay. The operator’s banking page lists typical processing times transparently, and our testing confirmed they hold to them.

Best for games: Mega Casino. No other operator in our shortlist comes close to the depth of the slot library. From classic three-reel fruit machines to the latest Megaways releases, the eligible games for daily spins span every major developer and genre.

Best for support: Virgin Games casino. The support team resolved every query we raised accurately and without deflection. When we asked whether a specific slot was eligible for a particular day’s spins, they confirmed the list immediately rather than pointing us to a generic FAQ page.

Best for mobile: NetBet casino. The dedicated apps outperform most browser-based casino experiences, with push notifications for daily spin availability and a one-tap claim process. The mobile slot performance is also notably smooth, with no lag during bonus rounds.

The terms that decide real value

Headline spin counts mean little without understanding the terms attached. Our comparison of the key commercial conditions reveals where the genuine value lies beneath each offer.

Term What it means for you
Wagering requirement The number of times you must bet your spin winnings before withdrawal. A £10 win at 35x requires £350 of turnover.
Game weighting Some slots contribute 100 percent to wagering; others contribute less. Check the list before you play.
Maximum win cap The ceiling on what you can withdraw from a spin bonus. A cap of £100 limits a lucky £500 win to £100.
Expiry period How long you have to use the spins and clear the wagering. Daily offers often expire within 24 to 72 hours.
Stake limits Maximum bet per spin while wagering. Exceeding it voids the bonus entirely.

Consider a concrete example. You win £20 from a daily spins offer with a 35x wagering requirement. That means £700 of turnover before you can withdraw — achievable, but not trivial. The same £20 win at a 20x requirement demands only £400 of turnover. That difference of £300 is the real cost of choosing a headline offer without reading the terms.

Maximum win caps deserve particular scrutiny. A cap of £50 on a no-deposit spin offer is common, but it fundamentally changes the value proposition. Your upside is fixed before you spin, so the offer becomes a small, guaranteed payout rather than a lottery ticket with real potential. Players chasing a meaningful win should prioritise operators without aggressive caps.

Game weighting is the quiet killer of value. Many operators list hundreds of eligible slots, but some of the most popular titles contribute only 50 percent or even 10 percent to wagering. Always check the contribution table before you play; it is usually buried in the full terms and conditions, but it determines how quickly you clear the requirement.

Remember that wagering requirements are commercial terms set by individual operators, typically ranging from 20x to 65x. They are not set by regulation, and they can change at any time. Always verify the current terms on the operator’s promotions page before claiming, as the figures in this guide reflect our testing period.

Payout times and support channels compared

Getting your money out of a casino is as important as getting spins in. Our testing measured actual withdrawal times and assessed the support channels each operator offers.

Operator Minimum deposit E-wallet payout Support channels
Heart Bingo £10 Under 24 hours Live chat, email, phone
Mega Casino £10 Under 24 hours Live chat, email
Bet365 casino £5 Under 4 hours Live chat, email, phone
NetBet casino £10 Under 24 hours Live chat, email
Virgin Games casino £10 Under 24 hours Live chat, email, phone

Bet365 casino’s minimum deposit of £5 is notably lower than the £10 standard across the rest of the field, which matters if you prefer to test an operator with a modest stake. The payout speed advantage is substantial; four hours versus twenty-four is the difference between same-day access to your winnings and waiting overnight.

All five operators support the standard e-wallet options including PayPal and Skrill, alongside bank transfer and debit card withdrawals. Verification is required before the first withdrawal at every operator, so completing your identity checks early will save you time when you actually want to cash out.

Adapting the ranking to your own priorities

Our ranking reflects a balanced view of what matters to the average player, but your circumstances may shift the calculus. A few questions will help you apply this list to your own situation.

If you play infrequently, prioritise payout speed over wagering terms. A 35x requirement matters less when you only claim the occasional offer, but waiting two days for a withdrawal is always frustrating. Bet365 casino becomes the obvious choice.

If you play every day, wagering fairness dominates everything else. The compounding effect of a low multiplier across thirty claims in a month is enormous. Heart Bingo’s 20x requirement saves you real money over a sustained period.

If you are new to online casinos, support quality and a generous minimum deposit matter most. Virgin Games casino’s responsive team and Mega Casino’s low entry threshold make them the friendliest starting points. You will make mistakes; a good support team rescues you from them.

If you play exclusively on your phone, NetBet casino’s native app removes the friction from daily claims. The push notifications alone are worth the switch if you regularly forget to claim your spins.

For those chasing the strongest daily offers, our best daily spins uk analysis breaks down the top contenders in detail. If your interest is in maximising returns from particular game types, the best games for money uk guide highlights which titles offer the best value. Players who prefer smaller, specialist operators should review our best independent casinos uk shortlist, and those focused purely on slot play will find the online slots sites guide useful.

Compliance and safer gambling

Every operator in this ranking holds a licence from the UK Gambling Commission, and you can verify this by checking the licence number in the footer of each site. Gambling with credit cards has been prohibited in Great Britain since April 2020, so you will need a debit card or e-wallet to deposit. Stake limits for online slots, including £5 per spin for most players and £2 for those aged 18 to 24, have applied since 2025.

Gambling is entertainment with a cost, not a way to make money. If you feel your play is becoming difficult to control, GAMSTOP offers free national self-exclusion covering all UKGC-licensed sites, and GambleAware provides free support and guidance at any time. All products are strictly 18+.

Before you claim: five reader questions

Why do daily spins offers vary so much between operators?

Because each operator sets its own commercial terms within the rules set by the UK Gambling Commission. There is no regulatory standard for wagering multipliers or spin counts, so competition produces a wide spread of offers. The variance reflects each operator’s marketing budget and acquisition strategy rather than any quality difference.

Can I claim daily spins from more than one operator at once?

Yes, provided you hold accounts with each and meet their individual qualifying criteria. There is no central restriction on holding multiple accounts or claiming multiple daily offers. Just be aware that managing several wagering requirements simultaneously can become confusing, and missed deadlines will forfeit your winnings.

Is it worth claiming an offer with a high wagering requirement?

Sometimes, but only if the headline spin count is substantially higher or the eligible games are ones you genuinely enjoy. Work out the effective value by multiplying your expected win by the requirement. A 50x requirement on a £10 expected win demands £500 of turnover, which may not justify the effort.

What happens if I close my browser mid-wagering?

Your progress is saved on the operator’s servers, not in your browser, so you can resume where you left off. The wagering requirement and the spins themselves remain valid until the stated expiry period ends. Logging in from a different device also works without issue.

Do I need to deposit to claim a daily spins offer?

That depends entirely on the specific promotion. Some daily offers are no-deposit and simply require you to log in and claim, while others require a minimum deposit or a qualifying wager. The promotions page for each operator states the requirement clearly, so check before you assume either way.