Showing 1–20 of 1,000 ranked alternatives.
Spark and Spiral Software Inc.
Play Sudoku with symmetry and challenge
Play puzzle games with 1300+ levels featuring handcrafted puzzles and challenge mode. Solve Sudoku-based grids with symmetry rules. Track progress through difficulty tiers and timed challenges.
Tom Miedema
Solve puzzles and complete grids
Solve puzzles by filling a grid with zeros and ones. Ensure each row and column has equal numbers of each. Avoid three identical numbers in a row or column. Complete puzzles with pre-filled starting cells.
Satish Boggarapu
Convert numbers between , , Hexadecimal,
Convert numbers between , , hexadecimal, and octal formats. Input a value and select the target format for conversion. Display results clearly with error handling for invalid entries.
Jonathan Lepage
Fill grids with 0s and 1s
Play logic puzzles by filling 10x10 grids with 0s and 1s. Ensure each row and column has equal numbers of 0s and 1s. Avoid three identical numbers in a row. Earn points by solving grids efficiently. Use time-based multipliers for higher scores.
Satish Boggarapu
Convert numbers between , , hex,
Convert , , hex, and octal numbers with one-tap input. Perform bidirectional conversions between all number systems. Save and share conversion results. View detailed conversion steps and history.
Daniel Reicher
Play, learn, and solve puzzles
Play games that challenge decimal-to- conversion skills. Compete with friends and track progress on leaderboards. Learn system fundamentals and improve mental math abilities. Share high scores and access a global community of players.
Aaron F Stephenson
Read with color-coded circles
Displays using color-changing circles that shift between blue shades. Users can customize circle colors. The includes a tutorial to learn how to read . It functions as a watch face.
Muhammad Awais Younas
Convert to and vice versa
Convert numbers to , octal, and hexadecimal. Convert numbers to , octal, and hexadecimal. Convert octal numbers to , , and hexadecimal. Perform accurate calculations with an intuitive interface.
Oleh Mykhalevych
Convert numbers to and earn points
Convert numbers 1 to 255 into by toggling 0s and 1s. Earn points for correct entries. Bonus points double if solved before the number flashes. Time decreases with higher scores.
Shivam Pandey
Convert numbers to match targets
Solve puzzles by converting zeros to ones on a grid. Match target decimal numbers at the end of rows and columns. Track progress and improve logic and problem-solving skills.
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