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Tools165 free tools that run in your browser.PDF toolsMerge, split, compress and convert PDFs.Image toolsCompress, convert, resize and make ID photos.Audio & videoTrim, convert and record audio and video.Text toolsCount, clean, compare and convert text.Developer toolsJSON, encoding, network and security utilities.CSS & designGradients, shadows, colours and layout CSS.CalculatorsEveryday numbers, dates and conversions.

Games

GamesBoard and card games, ready in one click.Board gamesChess, Go, Xiangqi and 14 more. Play a friend online.Card gamesSolitaire, Hearts, Spades and 40+ classics.MahjongEight regional Mahjong variants with friend rooms and bots.Dou DizhuSix Dou Dizhu variants: classic, wild cards, four players and more.

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TarotA card reading as a prompt for reflection.Skill RankDiscover and compare AI agent skills.CiteProofCheck a bibliography against real records.HACKER_Hackathons, AI competitions and developer challenges.

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Tools

Tools165 free tools that run in your browser.PDF toolsMerge, split, compress and convert PDFs.Image toolsCompress, convert, resize and make ID photos.Audio & videoTrim, convert and record audio and video.Text toolsCount, clean, compare and convert text.Developer toolsJSON, encoding, network and security utilities.CSS & designGradients, shadows, colours and layout CSS.CalculatorsEveryday numbers, dates and conversions.

Games

GamesBoard and card games, ready in one click.Board gamesChess, Go, Xiangqi and 14 more. Play a friend online.Card gamesSolitaire, Hearts, Spades and 40+ classics.MahjongEight regional Mahjong variants with friend rooms and bots.Dou DizhuSix Dou Dizhu variants: classic, wild cards, four players and more.

Create & choose

CreatorsAnalyze a public account, review recent posts and plan the next one.VPS pickerDescribe your project. Get a VPS shortlist.

More

TarotA card reading as a prompt for reflection.Skill RankDiscover and compare AI agent skills.CiteProofCheck a bibliography against real records.HACKER_Hackathons, AI competitions and developer challenges.

Read & talk

BlogPractical guides with sources.CommunityReviews, recommendations and red flags.
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PocketPlay Mahjong

Mahjong

Choose your rules. Practice with bots or invite friends.

Sichuan Blood BattleChoose a void suit; winners leave while the others continue.Choose a tableSichuan Swap ThreeExchange three same-suit tiles before a blood-battle game.Choose a tableBlood Flow · Swap ThreeSwap three, declare a void suit, then keep playing after a win.Choose a tableBlood Flow · Discard ThreeRemove three same-suit tiles; win with three sets and a pair.Choose a tableGuangdong Mahjong136 tiles; self-draw or rob an added kong, with horse bonuses.Choose a tableRed Dragon Wild108 suited tiles plus four wild red dragons; self-draw wins.Choose a tableHong Kong · Three FanChow, pung and kong; a win requires at least three fan.Choose a tableTaiwanese · Sixteen TilesFlowers and replacement draws; five sets and a pair, scored in tai.Choose a table