Company-organized library
Open any company to see coding, SQL, system design, and behavioral content filtered to that employer—so your prep lines up with who you are interviewing with.
Company-focused prep
Train like it is interview day
Smurfing.ai is a practice platform for software interviews: browse by company, drill coding and SQL in the browser, rehearse system design and behavioral prompts, and lean on solutions, discussion, and submissions—so you prep for the full loop, not just one question type.
What you can do on smurfing.ai
Premium unlocks the full library—coding, SQL, system design, behavioral, and future company tracks—in one subscription.
Coding workspace
Full statements with examples and constraints, a multi-language editor in the browser, run against samples, and submit for automated judging when the backend is connected.
SQL workspace
SQLite-style setups with schema and data, run queries to inspect results, and submit for row-level grading and feedback when the problem supports it.
System design
Read architecture-style prompts and deep dives—tradeoffs, components, and scaling—organized like the rest of the library and by company where we tag them.
Behavioral prep
Practice behavioral and soft-skill prompts to rehearse stories, framing, and follow-ups—same tabs and reading experience as other article tracks.
Learn together & track progress
Solutions, discussion threads, and submission history on problems; sign in (including Google) for progress and premium across the site; contribute new items and join Discord from the footer.
Smurfing.ai vs LeetCode
How our company-first interview prep compares at a glance. LeetCode is a separate product and trademark of its owner; this table is for illustration only.
| Feature | smurfing.ai | LeetCode |
|---|---|---|
| Prep organized by company and interview context | ||
| System design interview prep | ||
| Behavioral interview prep | ||
| In-browser coding with run, submit, and judge feedback | ||
| SQLite SQL interview workspace with graded submissions | ||
| Per-problem solutions, discussion, and submission history | ||
| Progress tracking on each problem | ||
| Community Discord and contribute flow for the catalog | ||
| Subscription unlocks the full premium library |