BYTEBRAWL

COMPETITIVE CODING ARENA
COMING SOON
Stop Grinding Alone. Start Brawling Together

Face off against developers worldwide in real-time 1v1 coding battles. Every keystroke counts. Every algorithm matters. Only the fastest survives.

1v1
Real-time Battles
6
Languages
∞
Challenges

We're putting the finishing touches on ByteBrawl. Get ready to enter the arena!

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While we're putting the finishing touches on ByteBrawl, join our waitlist to get early access and exclusive updates.

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> initialize("warrior_mode")
★New • 1v1 LeetCode duels

Stop Grinding Alone.
Start Brawling.

Battle real opponents on timed LeetCode-style problems. Earn ELO, climb the ladder, and turn solo practice into high-intensity duels.

Experience the thrill of competitive coding. Every match is a chance to prove your skills and climb the ranks.

opponent1588Reviewing tests
Test Cases:2/3 passed
Language:Python
Status:Testing solution...
Live duel • 02:13 left
+24 ELO on win
< />two-sum.py
Python
def two_sum(nums: list[int], target: int) -> list[int]:
    num_map = {}
    for i, num in enumerate(nums):
        complement = target - num
        if complement in num_map:
            return [num_map[complement], i]
        num_map[num] = i
    return []

OUTPUT

Test case 1: PASSED
Input: nums = [2,7,11,15], target = 9
Output: [0,1]
Expected: [0,1]

Test case 2: PASSED
Input: nums = [3,2,4], target = 6
Output: [1,2]
Expected: [1,2]

Test case 3: PASSED
Input: nums = [3,3], target = 6
Output: [0,1]
Expected: [0,1]

All tests passed! ✓
Modes

Choose how you want to duel.

Warm up with friends or jump straight into ranked matchmaking. Swap modes anytime—your rating only moves in ranked.

Play with Friends

Drop a link in your group chat and spin up a duel in seconds. Perfect for mock interviews and study sessions.

  • Custom problem difficulty, language, and time limit
  • Private lobby code + spectator-friendly flow
  • Shared tests so you both debug the same edge cases
  • Built-in chat for quick coordination
FRIENDS
LIST
raw_apple
ELO 1588
online
code_master
ELO 1720
Brawling
algo_ninja
ELO 1450
online
stack_overflow
ELO 1890
offline
binary_beast
ELO 2140
online
data_struct
ELO 1650
online
recursive_pro
ELO 1980
offline
ELO progression
Example of the chart you'll see on your dashboard
+140 this month
Dec 23Jan 1
Leaderboard preview
#1binary_beast
2140 ELO
#2heap_hacker
2075 ELO
#3queue_master
2012 ELO
#4code_wizard
1950 ELO
#5algo_ace
1895 ELO
Preview

See what a duel looks like.

A clean split-screen editor with built-in tests, complexity hints, and real-time status for both players.

Interactive-style preview • No account required
Practice duel • Medium • Arrays & Hashing
Timer: 12:48 remaining
< />two-sum.java
Java
public int[] twoSum(int[] nums, int target) {
    Map<Integer, Integer> map = new HashMap<>();
    for (int i = 0; i < nums.length; i++) {
        int complement = target - nums[i];
        if (map.containsKey(complement)) {
            return new int[]{map.get(complement), i};
        }
        map.put(nums[i], i);
    }
    return new int[0];
}
All tests passing
O(n) • 32ms • 18MB
Complexity score+32 pts
Better than 78% of recent submissions
Duel outcome: You won
ELO change+24
Time to solve06:42
Mistakes caught by tests3
Everything included

All the features already live in ByteBrawl.

Brawl, ranked matchmaking, party rooms, full problem runner with Judge0, stats dashboard, leaderboards, and themes—all in one arena.

Brawl rooms (private 1v1)
Create or join a room and race to a correct submission. Live status + in-match chat included.
Ranked matchmaking + ELO
Queue into ranked and get matched by rating. Wins/losses update ELO automatically.
Party mode (multiplayer)
Kahoot-style room codes, up to 10 players, ranked by correctness + submission time.
LeetCode-style editor + tests
Syntax highlighting, templates, sample runs, hidden judge submits via Judge0 integration.
Public leaderboard
Top players by ELO, with win/loss breakdowns and top-3 highlights.
Realtime presence + chat
Live opponent signals (typing/testing/submitted) and room chat during matches.
Themes

Make the arena yours.

ByteBrawl ships with multiple theme presets (light/dark + Cozy, Green, Purple, Ember, Obsidian variants). Pick one and the whole UI updates instantly.

Anti-cheat & copy-paste detection enabled
Built for high-intensity competitive coding.
Real-time duels, ELO rankings, and time pressure—everything you love about ranked games, applied to algorithms.
Tip: you can change themes anytime in Settings or right here on the landing page.