Runti
Daily tech challenges for modern engineers. Sharpen your skills on the go.
Over 1,000 questions across 6+ IT tracks.
Daily tech challenges for modern engineers. Sharpen your skills on the go.
Over 1,000 questions across 6+ IT tracks.
Learn coding through interactive challenges. Each mode teaches different skills. Choose a track, pick a mode, and start learning!
Choose the correct answer. Questions may ask what code does, which snippet is correct, or what error occurred.
Decide if the code will run or throw an error. Swipe or tap Will run / Won't run.
Count how many bugs are in the code. Enter the exact number.
Tap the line that contains the bug. Look for syntax errors, logic mistakes, or wrong values.
Timed rounds mixing all four modes. One question at a time, timer per question, limited lives. Double points.
Points by difficulty: Starter (1 pt), Basic (2), Intermediate (3), Advanced (4), Expert (5). Lightning Round: double points. Correct answers only; challenges can be replayed.
Master the craft through diverse interactive challenges designed to test your technical intuition.
Identify logic flaws and syntax errors in real-time code snippets.
Precision is key. How many flaws can you spot in under 60 seconds?
Instant decisions on architectural concepts and best practices.
Deep dives into specialized tech stacks with curated solutions.
All four modes with a timer. Same Bug Hunter, Count the Bugs, True or False, and Multiple Choice—but time-based. Answer faster for bigger score multipliers.
| Time per question | Multiplier |
|---|---|
| 15 sec | 5x |
| 30 sec | 4x |
| 45 sec | 3x |
| 60 sec | 2x |
| 90 sec | 1.5x |
| 120 sec | 1x (no bonus) |
Click a track to see subcategories and pick your focus.