Alternatives
Products that do what Free Sudoku Online does
sudoku, online sudoku, sudoku solver
- 1

- 2
- 3

- 4

- 5IM
Source: https://github.com/alabhyajindal/sudoku/blob/main/index.html
2024 · sudoku-aj.netlify.app
- 6

- 7
- 8

- 9

Play Sudoku in real-time against players worldwide
Jun 2026 · multiplayersudoku.in
- 10

- 11

- 12SP
Hi HN, I've been working on this Sudoku web app for the past couple of years, on and off during free weekends and afternoons. I started working on it because I was bored during COVID, and Cracking the Cryptic had just become popular on YouTube, which got me wondering how hard it could be to make a Sudoku app. The main idea is for the app to understand the constraints and know how to solve Sudoku grids (and not just be a simple Sudoku drawing/playing app). When it comes to classic Sudoku, the solver doesn't support anything more complicated than X-Wing, but it understands the…
2025 · sudokuvariants.com
- 13

- 14

- 15HP
Hi HN, I built a web-based Sudoku game to play with live with my friends or solo with a timer for practice. Get a game going in a few seconds. I'm excited to finally finish this project and putting it out there, after years of procrastination. Hope you like it! https://hypersudoku.app
2022 · hypersudoku.app
- 16

Free browser game hub with unique visual Sudoku variants
Jun 2026 · sudokumultiverse.com
- 17
Free online sudoku with Killer mode and Evil difficulty
May 2026 · sudoku247online.com
- 18VS
Hello! I recently wanted to learn a bit about computer vision. Initially, I wanted to build something which could solve a jigsaw puzzle, but figured I should start with something (much) simpler, so I've built this instead. This is a visual Sudoku solver which runs in the browser. It works by using OpenCV to identify and process the Sudoku grid, passing this to a simple ML model to identify the digits, and then solving the puzzle with a backtracking algorithm. The ML model was trained on the TMNIST data set using a model built with Keras, also a completely new area to me. It's far from…
2024 · sudoku.dotslashdan.com
- 19

- 20SW
Hello HN, I've created a new Sudoku app for iOS and Android that prioritizes simplicity and privacy. It's free to download and use, and I'd be grateful for any feedback or suggestions. Features: > 4 difficulty levels, accessible at any time > No personal data collection of any kind > Clean, minimalistic design that focuses on the game > Takes up significantly less space than other popular apps (by a factor of about 10x) > Minimal use of advertisements I was frustrated by how many of the popular Sudoku apps feel excessively over-engineered, consume a lot of storage space and some that even…
2023
- 21

- 22

- 23
- 24MS
https://sudokurace.io is a free, real time multiplayer sudoku board. Invite your friends and race to fill the most squares. All feedback is welcome. MVP was built over the last ~4 days. Lmk what you think! You can play with as many people as you'd like at the same time
2022
Ranked by how close each launch is in meaning, then by votes. Refine with a description →